bigram

This is a table of type bigram and their frequencies. Use it to search & browse the list to learn more about your study carrel.

bigram	frequency
inches long	991
inch long	692
feet high	669
natural size	638
one side	485
united states	368
one part	364
dark green	354
specific character	346
new england	344
green leaves	340
generic character	327
new york	325
dark brown	296
upper part	291
widely distributed	279
leaved ditto	276
two feet	275
pale yellow	269
three inches	263
miss harson	260
inches broad	255
upper surface	254
three feet	248
two inches	245
white flowers	245
inch across	236
small tree	234
well known	231
four inches	222
upper side	219
inches high	219
winter buds	212
bright yellow	211
six inches	209
north america	202
white oak	202
bright green	195
spores globose	193
yellow flowers	191
axial area	189
one another	187
young trees	182
whole plant	182
years ago	181
large number	179
right angles	179
light brown	178
early spring	178
flowers white	178
many kinds	173
three times	170
per cent	168
minutely warted	167
blue clay	165
old trees	163
one species	163
elementary species	162
pure white	159
takes place	158
young plants	156
two species	155
dark red	154
much like	154
lower part	153
bright red	153
many cases	149
early summer	146
double flowers	144
feet tall	144
four feet	143
reddish brown	141
will find	139
inches across	139
main stem	137
many years	133
three leaves	132
will grow	131
pale green	128
long time	127
much larger	127
honey yield	126
closely crowded	125
young leaves	124
inches tall	124
two leaves	123
valve linear	123
leaves simple	123
trunk diameter	122
much smaller	121
tapering upward	120
terminal bud	119
boiling water	119
five feet	118
two kinds	118
electric response	118
flesh white	118
flowers appear	118
short time	118
two days	117
see also	117
tells us	116
great britain	115
fresh water	115
terminal leaflet	115
found growing	115
nd ed	115
several species	115
pale brown	115
transmitted light	114
large tree	114
closely related	114
nearly equal	114
six feet	113
far north	112
one hundred	112
several kinds	112
late summer	112
different species	111
central area	111
many plants	110
little plant	110
may also	109
old wood	109
inner bark	109
next morning	108
positive curvature	108
vertical glass	108
rather large	107
waste places	107
feet long	107
four leaves	107
years old	107
almost every	106
yellow spring	106
many species	105
every year	105
great many	104
young shoots	104
much less	103
closely inflected	103
thirds natural	102
exterior tentacles	102
young plant	101
entire plant	101
much longer	100
per acre	100
lower surface	100
sugar maple	100
ten inches	99
white ash	99
easily distinguished	99
animal matter	99
motor impulse	99
three days	99
leaves alternate	99
volatile oil	99
lower side	97
pubescent beneath	97
eighteen inches	97
large size	96
close together	96
every one	96
de bary	95
fertile flowers	95
white spring	95
eight inches	94
look like	94
one time	94
green colour	94
light green	94
opposite side	93
nearly smooth	93
two hundred	93
wild state	93
de candolle	92
raw meat	92
summer northwest	91
essential oil	91
quite common	90
specific name	90
pretty little	90
horticultural value	90
following morning	90
small trees	90
inner surface	90
flowering branchlet	89
sporangia gregarious	89
large trees	89
greater part	89
lower ones	88
general appearance	88
winter twig	88
five inches	88
leaves ovate	88
several years	88
new jersey	87
late spring	87
flowering plants	87
hundred years	87
moist soil	87
cold water	87
sometimes called	86
thousand feet	86
present species	86
hardy throughout	86
north carolina	85
fruiting branch	85
green foliage	85
easily recognized	85
sized tree	84
mountain ash	84
rich soil	84
first sight	84
open woods	84
valve lanceolate	84
white petals	83
tentacles inflected	83
horizontal glass	83
flowers grow	82
leaves opposite	82
many parts	81
spreading branches	81
dark purple	81
three species	81
upper leaves	81
one end	81
slightly striate	81
sometimes slightly	81
upper half	81
one leaf	81
see fig	81
milk white	80
will give	80
take place	80
one may	79
hundred feet	79
white pine	79
leaves entire	79
several times	79
upper ones	78
carbonic acid	78
many others	78
common species	78
downy beneath	78
sandy soil	78
four times	78
white summer	77
lateral light	77
informs us	77
flowered ditto	77
grows rapidly	77
often found	77
throughout new	77
see page	77
black oak	76
much used	76
median line	76
let us	76
plant grows	76
rather thick	75
distilled water	75
doubly serrate	75
wet places	75
hydrochloric acid	75
shaped like	75
new hampshire	75
milky juice	75
valve elliptical	74
sterile flower	74
yellow colour	74
half natural	74
dull green	74
like manner	74
pistillate flowers	74
short stalks	74
like leaves	74
less pubescent	74
north american	74
red oak	74
wet weather	74
first year	73
upper lip	73
area narrow	73
rather distant	73
leaves linear	73
every part	73
smell strong	73
new species	73
climbing plants	72
well developed	72
three years	72
flowers yellow	72
flowers small	72
lateral buds	72
nova scotia	72
second year	71
plants may	71
pistillate flower	71
shaped leaves	71
common name	71
diurnal movement	71
south america	71
small flowers	70
summer california	70
outer layer	70
shining white	70
nyctitropic movements	70
purple colour	70
will serve	70
distinct species	69
two years	69
natural history	69
large quantities	68
different kinds	68
wild flowers	68
american species	68
common plant	68
spring california	68
yellow anthers	68
will see	68
deeply furrowed	68
rhode island	68
young leaf	68
large numbers	67
outer surface	67
de la	67
common names	67
nearly plane	67
will show	67
often seen	67
closely allied	67
four hours	67
green color	66
either side	66
one inch	66
usually found	66
also found	66
two different	66
golden yellow	66
lower half	66
staminate flower	66
rather small	66
slightly curved	65
common tree	65
different parts	65
short distance	65
inches apart	65
becoming pale	65
lower lip	65
opposite sides	65
may therefore	64
black walnut	64
grows wild	64
almost glabrous	64
foot tall	64
fruit ripens	64
entirely white	64
sterile flowers	64
dark gray	64
large family	64
wide range	64
certain species	64
red colour	63
greater number	63
ornamental tree	63
single spore	63
twenty feet	63
gives rise	63
paler beneath	63
third natural	63
magnified leaf	62
rocky mountains	62
dead leaves	62
broadly ovate	62
nearly straight	62
weeping willow	62
staminate flowers	62
narrow leaves	62
latter case	62
little flowers	62
first time	62
original scale	62
crowded together	62
distal side	62
great number	61
compound leaves	61
purple flowers	61
latent period	61
along streams	61
rotten wood	61
flowers greenish	61
five petals	60
concluding remarks	60
botanic garden	60
outer tentacles	60
often called	60
five lobes	60
next day	60
blowing rock	60
also called	60
rather viscid	60
will also	60
pretty plant	60
hot water	60
many seeds	60
spored agarics	59
almost black	59
american elm	59
becoming smooth	59
ordinary circumstances	59
small quantity	59
horizontal position	59
calyx lobes	59
des sci	59
blue flowers	59
stipe short	59
great variety	59
pink spring	59
edge incurved	59
rather long	59
made use	58
open ground	58
edge white	58
cultivated plants	58
lower leaves	58
lower branches	58
pinnate leaves	58
rapid growth	58
give rise	58
often tinged	58
ovary superior	58
old trunks	58
female flowers	58
opposite leaves	58
good many	58
nearly sessile	58
different plants	58
circumnutating movement	58
fertile flower	57
twelve inches	57
light yellow	57
medicinal tincture	57
extensively cultivated	57
small white	57
plant may	57
illustration illustration	57
green sepals	57
alternate leaves	57
one case	57
great deal	56
bitter taste	56
two distinct	56
latin name	56
southern part	56
sweet gum	56
red maple	56
quite variable	56
light gray	56
great abundance	56
white hairs	56
increased number	56
much greater	56
dark violaceous	56
much shorter	56
four days	56
near chillicothe	56
flesh color	55
lateral leaflets	55
several varieties	55
two forms	55
much branched	55
forest trees	55
glass filament	55
regular flowers	55
beautiful plant	55
plants will	55
summer months	54
grand canyon	54
five sepals	54
one day	54
flowers blue	54
external conditions	54
pink flowers	54
finely serrate	54
small green	54
deeply cut	54
keel puncta	54
first place	54
frequently found	54
west indies	54
fully expanded	54
upper portion	54
negative curvature	54
open places	54
quite large	53
widely different	53
yield good	53
vegetable kingdom	53
edge striate	53
plate xii	53
nearly free	53
eight feet	53
six leaves	53
vertical position	53
almost white	53
modified circumnutation	53
family herbs	53
scotch fir	53
coarsely toothed	53
indirect stimulation	53
thickly covered	53
red cedar	52
nearly round	52
numerous small	52
mountain slopes	52
terminal buds	52
leaves usually	52
geotropic stimulus	52
general rule	52
many instances	52
gastric juice	52
summer west	52
several days	52
thirty minims	52
flowering branch	52
quite different	52
will become	52
shade tree	52
readily distinguished	52
tulip tree	52
nearly white	52
pale pink	52
zone view	52
pretty flowers	52
different trees	52
lower sides	51
good soil	51
basal leaves	51
zigzag line	51
silver fir	51
growing region	51
almost smooth	51
simple leaves	51
flowers large	51
pin oak	51
fruit trees	51
nyctitropic movement	51
narrowed upwards	51
desmodium gyrans	51
present day	51
flowers pink	51
old plants	51
trifolium repens	51
long slender	51
common throughout	51
glandular hairs	50
galvanometric negativity	50
twelve feet	50
feet apart	50
tropic curvature	50
sharply serrate	50
greek words	50
hard pines	50
perceptive layer	50
plate iii	50
plants growing	50
northern part	50
yellow petals	50
peridium thin	50
ten feet	50
another plant	50
silver maple	50
almost always	50
long since	50
long ago	50
deeply lobed	50
soon plane	50
disc darker	50
close contact	50
open air	50
edible species	49
nearly black	49
agaricus campestris	49
deep green	49
straight line	49
extended horizontally	49
bright blue	49
southern states	49
greek word	49
fluctuating variability	49
honey locust	49
greyish white	49
slightly hairy	49
sometimes tinged	49
two lateral	49
two sides	48
southern california	48
fine specimens	48
plants grow	48
de toni	48
chestnut oak	48
see plate	48
acetic acid	48
thirty feet	48
one instance	48
dead nettle	48
many varieties	48
warm greenhouse	48
joined together	48
four petals	48
certain plants	48
central nodule	48
many places	48
fifty feet	48
tawny yellow	48
torsional response	48
brassica oleracea	48
new forms	47
two greek	47
young seedlings	47
tinged yellow	47
distinguishing characters	47
ornamental planting	47
growing part	47
following year	47
never seen	47
yellow summer	47
yellowish white	47
inches wide	47
old world	47
may become	47
upper surfaces	47
will make	47
various parts	47
asked clara	47
pale ochre	47
fruiting surface	47
found near	47
just described	47
curved towards	47
good deal	47
leaves may	46
silky hairs	46
will soon	46
stipe long	46
small leaves	46
less elongated	46
rather broad	46
far east	46
without stipules	46
leaves pinnately	46
large clusters	46
natural selection	46
tinged brown	46
latter part	46
two parts	46
short stem	46
lateral branches	46
brown scales	46
entire leaves	46
leaves compound	46
yellow color	46
densely covered	46
plant flowers	46
living plants	46
ovary inferior	46
one plant	46
holds good	45
glaucous beneath	45
easily transplanted	45
swamp white	45
geotropic curvature	45
british species	45
rather wavy	45
geotropic action	45
well inflected	45
slender threads	45
looks like	45
slightly depressed	45
yellow stamens	45
also known	45
vicia faba	45
commercial value	45
direct stimulation	45
following spring	45
two small	45
one half	45
inner peridium	45
pointed leaves	44
branching stems	44
june th	44
quite distinct	44
small plant	44
shall see	44
wild species	44
may often	44
dark blue	44
grassy places	44
columella none	44
greenish yellow	44
intermediate forms	44
principal leaves	44
drosera rotundifolia	44
also used	44
may sometimes	44
slightly downy	44
may easily	44
may occur	44
long stalks	44
leaves oblong	44
phototropic curvature	44
sporangia scattered	44
inner side	44
pinnately compound	44
will probably	44
indirect stimulus	44
something like	44
lower surfaces	44
base thickened	43
mixed woods	43
high temperature	43
leaves lanceolate	43
gerard says	43
side view	43
seedling plants	43
deeply divided	43
will now	43
slender stems	43
found wild	43
ascertain whether	43
pale yellowish	43
dry soil	43
will produce	43
five stamens	43
low water	43
chapter ii	43
almost free	43
dry weather	43
falling away	43
three leaflets	43
eastern united	43
exactly like	43
red clover	43
one kind	43
lombardy poplar	43
new mexico	43
fifty years	43
generic name	43
common along	43
leaves glabrous	43
native species	43
deeply decur	43
pale purple	43
deep red	42
brown color	42
various forms	42
red color	42
charming little	42
every day	42
first incurved	42
clear yellow	42
inch broad	42
shellbark hickory	42
nitrogenous matter	42
small doses	42
two rows	42
dull red	42
may see	42
horizontal branches	42
following day	42
two plants	42
lower peninsula	42
hypothallus none	42
three hundred	42
terminal clusters	42
bright orange	42
acer saccharum	42
hymenium pale	42
great care	42
will often	42
first season	42
leaves smooth	42
second edition	42
male flowers	42
common mushroom	42
several parts	42
third day	42
sometimes found	42
five leaves	42
yellowish brown	42
grows abundantly	42
herbaceous plants	41
mm diam	41
allied species	41
woods near	41
may now	41
nocturnal movement	41
sulphuric acid	41
slightly decurrent	41
slender tubules	41
dense clusters	41
five hundred	41
outer peridium	41
small size	41
closely resembles	41
flowers purple	41
strongly marked	41
ten years	41
ten drops	41
radical leaves	41
white elm	41
nearly every	41
one direction	41
hexandria monogynia	41
loose net	41
axillary buds	41
slender branches	41
secondary radicles	41
much better	41
highly sensitive	41
gills decurrent	41
main petiole	41
granular matter	41
plant growing	41
two lobes	41
wild plants	41
damp air	41
free extremities	41
flowering stems	40
front view	40
species may	40
stamens numerous	40
inferior ovary	40
many small	40
summer cal	40
strongly inflected	40
capillitial threads	40
acid gas	40
another leaf	40
scarlet oak	40
plate xi	40
large enough	40
mimosa pudica	40
becoming glabrous	40
will take	40
soon falling	40
shady places	40
gulf states	40
old leaves	40
spores white	40
native country	40
coast ranges	40
poison sumac	40
slender stem	40
damp woods	40
evening primrose	40
one occasion	40
upper end	40
east window	40
another species	40
european species	40
asci clavate	40
many times	40
handsome plant	40
eastern states	40
terminal leaflets	40
leaved willow	40
dried leaves	40
rounded behind	39
common hypothallus	39
enclosed within	39
southern counties	39
usual manner	39
small clusters	39
flowers solitary	39
apple tree	39
full bloom	39
first day	39
flowers may	39
strong solution	39
last chapter	39
english form	39
bend towards	39
often cultivated	39
large white	39
wood sorrel	39
winged seeds	39
less hairy	39
large scale	39
natural spawn	39
naked eye	39
preceding species	39
nine inches	39
zea mays	39
interior finish	39
medicinal properties	39
pacific coast	39
plate plate	39
different ways	39
soft pines	39
pale ochraceous	39
south carolina	38
leaves palmately	38
yellow rays	38
half inches	38
colored sapwood	38
nearly allied	38
specific characters	38
less common	38
asked malcolm	38
second season	38
far less	38
transverse section	38
well adapted	38
lighter colored	38
present time	38
thirty years	38
rather narrow	38
became inflected	38
second day	38
beautiful tree	38
white variety	38
best known	38
different times	38
become inflected	38
sometimes nearly	38
basal part	38
considerable distance	38
compound leaf	38
small scale	38
growing wild	38
artesian well	38
fully developed	38
damp places	38
pentandria monogynia	37
nearly two	37
foot long	37
dry places	37
rather common	37
new brunswick	37
early stage	37
taken place	37
apex white	37
unilateral stimulus	37
forty feet	37
may find	37
cellular tissue	37
systematic english	37
leaves broadly	37
hardy perennial	37
rich green	37
common occurrence	37
sierra nevada	37
gallic acid	37
native year	37
used medicinally	37
general form	37
one flower	37
readily propagated	37
thin layer	37
inch thick	37
new varieties	37
replied miss	37
late autumn	37
quite smooth	37
applied externally	37
plate viii	37
plants collected	37
tree grows	37
easily seen	37
slippery elm	37
thin membrane	37
chapter iii	37
true leaf	37
norway maple	37
brown colour	36
leaves large	36
creamy white	36
extremely variable	36
black cherry	36
beautiful species	36
diagrammatic representation	36
will thrive	36
almost entirely	36
colored like	36
moist places	36
dingy yellow	36
just mentioned	36
single flower	36
directed towards	36
like spines	36
rose family	36
lobed leaves	36
shall now	36
white birch	36
large quantity	36
vertically downwards	36
quite small	36
often used	36
easily propagated	36
cold weather	36
fruit small	36
large part	36
fertile catkins	36
black ash	36
one will	36
wild cherry	36
shield fern	36
lead acetate	36
rather crowded	36
sized trees	36
rounded ends	36
much elongated	36
two varieties	36
single leaf	36
wide distribution	36
growing season	36
found throughout	36
leaves grow	36
grows well	36
will always	36
lateral movement	36
temperate regions	36
rather thin	36
white wool	36
osage orange	36
various kinds	36
certain extent	36
aggregated masses	36
proximal side	35
sharp point	35
vertical section	35
different forms	35
obtusely umb	35
two types	35
arched hypocotyl	35
part ii	35
amanita muscaria	35
one form	35
slightly viscid	35
black locust	35
south dakota	35
much esteemed	35
commonly called	35
colouring matter	35
universal veil	35
diurnal record	35
densely pubescent	35
pulse family	35
may conclude	35
last species	35
attractive plant	35
botanical name	35
one finds	35
light red	35
pine trees	35
longitudinal lines	35
took place	35
generally known	35
fine specimen	35
half way	35
margin incurved	35
plate vi	35
similar manner	35
gills white	35
english gardens	35
five years	35
fibrillosely striate	35
loose clusters	34
fresh plant	34
deciduous trees	34
longitudinal rows	34
apothecia minute	34
less irregular	34
slightly adnexed	34
single species	34
norway spruce	34
plate xv	34
southern europe	34
early morning	34
herbal simples	34
first white	34
minutely roughened	34
fresh leaves	34
beautiful flowers	34
early part	34
geotropic torsion	34
delaware river	34
shall presently	34
red flowers	34
spring southwest	34
every flower	34
two sets	34
decayed wood	34
fairly well	34
one year	34
shall find	34
twenty years	34
magnified times	34
numerous stamens	34
white willow	34
white flower	34
shaped flowers	34
plate vii	34
small portion	34
early autumn	34
terminal fissures	34
various species	34
four years	34
two genera	34
species will	34
botanic gardens	34
woody stems	34
gills adnate	34
probably due	34
tell us	34
greek name	34
central space	34
acid secretion	34
foot high	33
slightly pubescent	33
per second	33
next year	33
two groups	33
several plants	33
every plant	33
country people	33
yellow flower	33
decurrent tooth	33
john evelyn	33
favorable conditions	33
three different	33
smooth leaves	33
pink summer	33
see illustration	33
new genus	33
highly inclined	33
new growth	33
old age	33
plate ii	33
less branched	33
says gerard	33
state mus	33
two others	33
finely striate	33
well defined	33
eighty feet	33
will remain	33
though sometimes	33
bend downwards	33
sporangia sessile	33
year round	33
whole length	33
handsome tree	33
terminal one	33
fifteen feet	33
weak solution	33
pale blue	33
wild thyme	33
five minutes	33
blue beech	33
often covered	32
one seed	32
ten minutes	32
quercus alba	32
dull yellow	32
may perhaps	32
densely crowded	32
diurnal curve	32
transverse conduction	32
leaves obovate	32
short stalk	32
ever since	32
longer time	32
bur oak	32
plant will	32
brown threads	32
axillary clusters	32
bright scarlet	32
spring arizona	32
floccose scales	32
deep yellow	32
staminate catkins	32
ventral margin	32
clear sky	32
pale gray	32
free ends	32
buds small	32
frequent occurrence	32
plate xiii	32
sore throat	32
perpendicularly downwards	32
entirely different	32
rather coarse	32
important part	32
containing many	32
drooping branches	32
growing organs	32
soon became	32
two cases	32
many flowers	32
usually sown	32
british columbia	32
white cedar	32
full grown	32
fully grown	32
pinus banksiana	32
two tablespoonfuls	32
next chapter	32
minute drops	32
asia minor	32
first two	32
flowers usually	32
green beneath	32
gills free	32
pounds per	32
flowers without	32
two hours	32
dried specimens	32
rare species	32
low ground	32
flesh colour	32
river banks	32
white blossoms	32
plate xiv	32
last century	32
like scales	32
typical form	32
peridial wall	32
erect plant	32
giving rise	31
will prove	31
margin striate	31
rather fleshy	31
box elder	31
coloured like	31
lemon juice	31
near ithaca	31
every case	31
fresh juice	31
bud absent	31
sir john	31
already mentioned	31
take root	31
vertically dependent	31
somewhat fleshy	31
ducts medial	31
half across	31
apex pruinose	31
spreading lobes	31
syngenesia polygamia	31
name means	31
lady fern	31
soft hairs	31
warm water	31
broadly elliptical	31
grown together	31
two opposite	31
wood light	31
grow singly	31
handsome flowers	31
white meal	31
white poplar	31
sterile catkins	31
pale umber	31
little doubt	31
several feet	31
flowering dogwood	31
primula sinensis	31
slender pedicels	31
many trees	31
little green	31
sometimes used	31
horse radish	31
first leaf	31
considerable quantity	31
five times	31
single plant	31
hortus kewensis	31
many leaves	31
single flowers	31
plant life	31
leaves appear	31
recent years	31
narrowly lanceolate	31
pale red	31
marsh mallow	31
considerable size	31
like base	31
sometimes almost	31
nearly half	31
horticultural society	31
four stamens	31
sporting varieties	31
quadrifid processes	31
sporangium globose	31
tinged red	31
ground ivy	31
purple fluid	30
true leaves	30
different stages	30
unilateral stimulation	30
mature plant	30
tropic effect	30
fruit body	30
house leek	30
first leaves	30
systematic species	30
outer ones	30
royal garden	30
sometimes two	30
english name	30
double varieties	30
ulmus americana	30
slight degree	30
green seed	30
rounded crown	30
two cotyledons	30
wall thin	30
seven inches	30
less expanded	30
drained soil	30
figure shows	30
page chapter	30
ventral side	30
july th	30
nervous system	30
usually white	30
purplish brown	30
following species	30
thrives best	30
yellowish green	30
opposite direction	30
mississippi valley	30
two lower	30
little longer	30
spores ellipsoid	30
mass black	30
economic importance	30
perfect flowers	30
every direction	30
sparingly branched	30
great importance	30
present plant	30
hairy leaves	30
separate trees	30
nearly always	30
flowers perfect	30
various shades	30
early age	30
orange trees	30
spring flowers	30
terminal nodules	30
generally found	30
make use	30
green flowers	30
little species	30
varies greatly	30
shoots uninodal	30
sporangial wall	30
well marked	29
beech trees	29
cemetery hill	29
various ways	29
short duration	29
may take	29
small hypothallus	29
already alluded	29
several hours	29
dingy white	29
tentacles became	29
may infer	29
vertically upwards	29
two months	29
cultivated varieties	29
half inch	29
flowers open	29
new zealand	29
post oak	29
common form	29
much injured	29
easily separating	29
large branches	29
pale lilac	29
fruit berry	29
mountain woods	29
even now	29
ducts external	29
witch hazel	29
lateral petals	29
high degree	29
small scales	29
three parts	29
becoming darker	29
increased growth	29
related species	29
flower garden	29
another occasion	29
glabrous beneath	29
firmly attached	29
great value	29
flowering tops	29
stem white	29
marginal tentacles	29
gave rise	29
considerable time	29
brown bark	29
single sporangium	29
open border	29
doubtful whether	29
thousand years	29
leaves serrate	29
late wood	29
nearly globose	29
less downy	29
usually less	29
commonly used	29
two valves	29
causing inflection	29
liriodendron tulipifera	29
smell like	29
old stumps	29
along roadsides	29
lateral lobes	29
damp sand	29
smaller ones	29
rather pretty	29
strong light	29
considerable number	29
middle ages	29
larger size	29
leaves toothed	29
deep blue	29
red berries	28
small amount	28
loamy soil	28
years since	28
now known	28
toothless leaves	28
populus alba	28
lateral ones	28
downward movement	28
celtis occidentalis	28
street tree	28
drug plants	28
present chapter	28
less frequent	28
sometimes confluent	28
six stamens	28
small yellow	28
pale violet	28
popularly known	28
long narrow	28
flesh yellow	28
yellow centers	28
lake michigan	28
coprinus comatus	28
blue colour	28
flower white	28
black poplar	28
amanita phalloides	28
entirely absent	28
rich woods	28
pale tan	28
plate iv	28
soon becoming	28
medium sized	28
similar plant	28
four hundred	28
black spruce	28
chapter iv	28
single tree	28
total height	28
two halves	28
northern hemisphere	28
active principle	28
protoplasm within	28
fully re	28
years later	28
given rise	28
temperate zone	28
ten stamens	28
almost sessile	28
now become	28
course pursued	28
western texas	28
palmately lobed	28
slightly tapering	28
half long	28
white gills	28
like flowers	28
apex mealy	28
poke hollow	28
like many	28
like bracts	28
sometimes quite	28
best way	28
higher plants	28
much crowded	28
name given	28
considerable extent	28
vegetable matter	28
last year	28
deep purple	28
dark reddish	28
fragrant flowers	28
tall tree	28
platanus occidentalis	28
leaves without	27
two pairs	27
large specimens	27
shining green	27
green ash	27
two sorts	27
tree may	27
small species	27
flower stalk	27
rest harrow	27
taking care	27
young branches	27
ten thousand	27
bright pink	27
distributed throughout	27
growing plants	27
three weeks	27
tawny cinnamon	27
south africa	27
spirally arranged	27
pure water	27
bearing surface	27
will cause	27
olden times	27
walnut tree	27
hairy stems	27
oxalis acetosella	27
little masses	27
plate xvi	27
yellow birch	27
terminal panicles	27
march th	27
species grows	27
somewhat flattened	27
ordinary leaves	27
finely punctate	27
occasionally found	27
grape fern	27
antirrhinum majus	27
central part	27
prunus americana	27
desert plant	27
hairy beneath	27
chapter vi	27
waste ground	27
lower portion	27
brick spawn	27
closely together	27
growing plant	27
might easily	27
slender stalks	27
geographical distribution	27
sleeping plants	27
breaking away	27
leaflets entire	27
pink petals	27
latin names	27
will appear	27
galvanometric positivity	27
slender tree	27
slightly inflected	27
leaves deeply	27
great beauty	27
minutely pubescent	27
light pale	27
much depressed	27
southern indiana	27
good collection	27
black willow	27
united together	27
moist woods	27
alpine plants	27
irregular flowers	27
canadian journal	27
large proportion	27
less excitable	27
little distance	27
outer side	27
tropical countries	27
popular names	27
looking plant	27
always found	27
southern illinois	27
therefore conclude	27
strong smell	27
quercus palustris	27
flore pleno	27
right angle	27
five teeth	26
somewhat like	26
often happens	26
time immemorial	26
fraxinus pennsylvanica	26
occasionally cultivated	26
also seen	26
soon become	26
smooth bark	26
eastern north	26
petals none	26
fig tree	26
full size	26
twenty minutes	26
fifteen minutes	26
fully exposed	26
old english	26
gives us	26
water dropwort	26
remained horizontal	26
new shoots	26
horizontally extended	26
generic characters	26
whole day	26
one genus	26
spruce fir	26
rusty brown	26
late mr	26
shagbark hickory	26
exposed situations	26
bottom lands	26
common everywhere	26
young specimens	26
diadelphia decandria	26
found among	26
one might	26
petioles slender	26
anything else	26
tapering downward	26
rostrate ends	26
fine puncta	26
fourth day	26
almost completely	26
sweet chestnut	26
royal gardens	26
first convex	26
bald cypress	26
responsive movement	26
somewhat similar	26
whitish sapwood	26
stove treatment	26
rare plant	26
de vries	26
chestnut tree	26
branched stem	26
normal rate	26
larger number	26
two branches	26
tilia americana	26
rapid inflection	26
horse chestnut	26
whole leaf	26
closely appressed	26
greater degree	26
natural order	26
similar occurrence	26
little tree	26
crack willow	26
whilst still	26
two flowers	26
blackish brown	26
extensively used	26
plant names	26
fine hairs	26
principal veins	26
erect stem	26
case may	26
one specimen	26
entire surface	26
plate xx	25
two long	25
robinia pseudacacia	25
white paper	25
low temperature	25
usually smooth	25
pileus expands	25
leaves mostly	25
wild red	25
known species	25
similar situations	25
great use	25
species found	25
rather open	25
third leaf	25
foliis lanceolatis	25
general effect	25
perennial plant	25
like fruit	25
became curved	25
leaves evergreen	25
highly esteemed	25
floccosely scaly	25
greatly inflected	25
figure represents	25
toothed edges	25
plants must	25
dull brown	25
great numbers	25
many persons	25
nearly glabrous	25
quercus rubra	25
grayish brown	25
became slightly	25
deeply cleft	25
rather slender	25
continued miss	25
green calyx	25
will bear	25
two seeds	25
one sees	25
leaflets usually	25
branch branch	25
plate ix	25
lower halves	25
small branches	25
gray bark	25
common origin	25
chapter vii	25
green leaf	25
sharp teeth	25
flowers pale	25
vascular bundles	25
readily recognized	25
toothed leaves	25
great extent	25
black maple	25
warm house	25
coloured flowers	25
frequently seen	25
turned back	25
illustration sidenote	25
spores subglobose	25
oriental plane	25
adventitious buds	25
spores elliptical	25
base narrowed	25
much alike	25
slightly thickened	25
perennial herbs	25
young twigs	25
fall away	25
veined leaves	25
water lily	25
flower clusters	25
certain trees	25
sharp points	25
following list	25
capillitium dense	25
grows spontaneously	25
young stage	25
one must	25
shall hereafter	25
continued action	25
trees may	25
stamens five	25
red mulberry	25
older plants	25
coarsely serrate	25
poison ivy	25
twigs smooth	25
flowers form	25
stiff hairs	25
frequently met	25
becoming dark	25
closely packed	25
high power	24
terminal spikes	24
sixty feet	24
marsh marigold	24
veins beneath	24
somewhat resembling	24
high altitudes	24
good effect	24
dead branches	24
ripe fruit	24
moderately common	24
river bottoms	24
three stamens	24
area small	24
small piece	24
two stamens	24
flowering branches	24
leaves lobed	24
greyish brown	24
trees grow	24
great quantities	24
silvery white	24
another flower	24
chapter viii	24
viscid secretion	24
foliage leaves	24
northern new	24
regular peloria	24
long leaf	24
retrograde varieties	24
stem erect	24
usually much	24
word meaning	24
one hand	24
grows naturally	24
botanical garden	24
wild rose	24
large amount	24
leaves narrowly	24
plate xvii	24
germ pore	24
expressed juice	24
sporangia globose	24
given us	24
evergreen leaves	24
widely known	24
flowers regular	24
apophyses lustrous	24
least two	24
stamens usually	24
will form	24
plate xix	24
even though	24
long hairs	24
species flowers	24
close beneath	24
old specimens	24
inner ones	24
floral leaves	24
nothing else	24
fleur blanche	24
straight trunk	24
dull reddish	24
sometimes branched	24
often becoming	24
sixty photographs	24
greenhouse plant	24
austrian pine	24
primary radicle	24
outer edge	24
timber trees	24
six days	24
single tentacle	24
new mex	24
slightly tinged	24
poisonous plants	24
rich purple	24
late years	24
cut away	24
reddish yellow	24
spores dark	24
willow herb	24
five days	24
central axis	24
narrow lobes	24
young ones	24
medicinal plants	24
olive oil	24
increasing intensity	24
wild plum	24
equal length	24
bright golden	24
closely resemble	24
flowering season	24
previously reported	24
considerably inflected	24
several cases	24
slender plant	24
british fungi	24
least affected	24
foliar organs	24
former case	24
dark violet	24
stamens four	24
guelder rose	24
becoming hollow	24
heavy rains	24
well stocked	24
great difference	24
deadly nightshade	24
leafy stems	24
vigorous growth	24
oak tree	24
quite constant	24
relative position	24
large shrub	24
topped clusters	24
successive dots	24
may even	24
commonly known	24
early period	24
nearly entire	24
two instances	24
new types	23
pinus strobus	23
whole surface	23
either case	23
lighter beneath	23
slightly zigzag	23
staminate flowering	23
acer rubrum	23
smaller size	23
united petals	23
see chapter	23
little yellow	23
branches form	23
red ash	23
southern ontario	23
tree sometimes	23
henry holt	23
sweet william	23
kernel sweet	23
similar plants	23
surrounding fluid	23
good hope	23
san francisco	23
seven feet	23
gleditsia triacanthos	23
ohio river	23
also cultivated	23
usually grows	23
lateral veins	23
greenish flowers	23
two terminal	23
several rows	23
hypothecium pale	23
shallow cup	23
juniperus virginiana	23
fluid within	23
rupturing irregularly	23
two cells	23
sandy soils	23
acer saccharinum	23
large leaves	23
now come	23
equally well	23
finely toothed	23
great interest	23
certain cases	23
rather rare	23
carpinus caroliniana	23
winter months	23
first described	23
poor soil	23
several occasions	23
inches deep	23
dog rose	23
first involute	23
edge wavy	23
little water	23
next species	23
carolina poplar	23
growing near	23
following experiments	23
first true	23
mint family	23
every kind	23
following experiment	23
vertical lines	23
tree throughout	23
near edge	23
usually propagated	23
purple spring	23
rarely found	23
two large	23
distinctly warted	23
well worth	23
corky ridges	23
will help	23
little flower	23
surrounding tentacles	23
deeply pinnatifid	23
will keep	23
stimulus induces	23
fibrous basis	23
many different	23
favourable conditions	23
british plants	23
accompanying figure	23
third edition	23
peloric flowers	23
new world	23
plate xviii	23
fertile fronds	23
largely used	23
every tree	23
narrowed behind	23
ascending branches	23
far south	23
hereafter see	23
one tree	23
ovary one	23
must therefore	23
will easily	23
thrive best	23
present volume	23
rather short	23
crab apple	23
larger ones	23
older ones	23
every leaf	23
new plants	23
called also	23
poisonous principle	23
vertical plane	23
white color	23
two ounces	23
electric change	23
many fine	23
leaves less	23
bright purple	23
like branches	23
leafy shoots	23
old tree	23
artificial heat	23
often slightly	23
sensitive plant	23
lead compound	23
lower wabash	23
attractive little	23
new variety	23
ovuliferous scale	23
paper birch	23
long continued	23
rectified spirit	23
england states	23
clark county	23
extremely sensitive	23
says dr	23
forming large	23
put forth	23
many people	22
five drops	22
white granules	22
betula papyrifera	22
white colour	22
readily increased	22
least one	22
leaves will	22
wabash valley	22
descending lines	22
specimens collected	22
scarlet pimpernel	22
viscid fluid	22
rock rose	22
larger branches	22
ornamental purposes	22
small meshes	22
native trees	22
also much	22
continually circumnutating	22
thuja occidentalis	22
leaved maple	22
delicate threads	22
scots pine	22
may still	22
carefully observed	22
inconspicuous flowers	22
somewhat irregular	22
divided leaves	22
usually four	22
side branches	22
spiral vessels	22
becoming brown	22
never saw	22
much resembles	22
usually large	22
will notice	22
large irregular	22
eye daisy	22
sessile glands	22
present state	22
differ much	22
sweet birch	22
opposite one	22
well drained	22
seeds may	22
grow wild	22
arnold arboretum	22
viola tricolor	22
asa gray	22
axile organs	22
may remain	22
quite well	22
says mr	22
minute granules	22
especially near	22
may frequently	22
several leaves	22
juglans cinerea	22
pale reddish	22
deeply fissured	22
disagreeable smell	22
scotch pine	22
white clover	22
old walls	22
yellow tinge	22
coarsely striate	22
without doubt	22
often grows	22
one place	22
already described	22
species differs	22
margin entire	22
purple brown	22
fence posts	22
like stems	22
mutual pressure	22
almost vertically	22
morus rubra	22
second leaf	22
two short	22
individual flowers	22
great distance	22
chapter ix	22
mature leaves	22
control specimens	22
ornamental trees	22
nitrogenous fluids	22
red valerian	22
sporangia distinct	22
northern europe	22
overlapping scales	22
well established	22
tapering gradually	22
eyed grass	22
english names	22
shortly stalked	22
pink colour	22
holt co	22
hollow stem	22
betula lutea	22
pointed lobes	22
apex acute	22
medullary rays	22
nearly horizontal	22
fine collection	22
like appearance	22
nearly cylindrical	22
several inches	22
less distinct	22
wild lettuce	22
dorsal side	22
general character	22
composite family	22
sensitive fern	22
petals five	22
involucral bracts	22
white dead	22
country folk	22
weaker solution	22
northern states	22
red juice	22
median prolification	22
hairy stem	22
quite entire	22
set free	22
stem glabrous	22
entire length	22
cultivated tree	22
margin even	22
brackish water	22
without petals	22
less degree	22
irregularly globose	22
long island	22
without bracts	22
moderate intensity	22
palm trees	22
triandria monogynia	22
smooth beneath	22
bright sunshine	22
quite abundant	22
darker brown	22
often made	22
branched threads	22
widely separated	22
first instance	22
alcoholic solution	22
short trunk	22
sir william	22
terminal part	22
large terminal	22
small family	22
without thorns	22
black jack	22
every single	22
small quantities	22
sometimes becoming	22
little plants	22
rather closely	22
three kinds	22
small cells	22
young seedling	22
following counties	21
acer negundo	21
easily separable	21
male catkins	21
often curved	21
sour gum	21
great length	21
living trees	21
longer axes	21
striped flowers	21
every thing	21
early june	21
geotropic reaction	21
broadly adnate	21
color varies	21
rock cress	21
leaves sessile	21
will yield	21
often wavy	21
salix alba	21
spores smooth	21
irregular ellipses	21
connecticut river	21
dermal tissues	21
slightly umbonate	21
human beings	21
common poison	21
two upper	21
central one	21
wild plant	21
geotropic movement	21
ninety minims	21
circumnutating movements	21
scurvy grass	21
easily separated	21
become much	21
base downy	21
tall shrub	21
cinnamon fern	21
first appear	21
railroad ties	21
another name	21
canoe birch	21
often planted	21
cases may	21
less deeply	21
growing together	21
short tentacles	21
leaf mould	21
spores pale	21
climatic conditions	21
leaves binate	21
nearly parallel	21
like processes	21
brown spines	21
much reduced	21
slightly bulbous	21
digitalis purpurea	21
longitudinal axis	21
long stalk	21
arranged along	21
basal lobes	21
sexual organs	21
older trees	21
palmately veined	21
one way	21
flora danica	21
quercus velutina	21
marasmius oreades	21
evil spirits	21
much pleased	21
flower may	21
heart wood	21
first edition	21
tropical regions	21
little trees	21
flowers bloom	21
crude drugs	21
popular name	21
amelanchier canadensis	21
second generation	21
pinus sylvestris	21
another kind	21
tropical america	21
summer ariz	21
new type	21
outer wall	21
mechanical response	21
remarkable fact	21
lime tree	21
grow well	21
different specimens	21
flowers bright	21
mature plants	21
black hills	21
gray birch	21
another instance	21
many respects	21
sterile fronds	21
normal position	21
first part	21
cucurbita ovifera	21
pisum sativum	21
bending towards	21
flowers will	21
summer key	21
slightly toothed	21
irregularly dehiscent	21
seven days	21
nine feet	21
cornus florida	21
may appear	21
bright color	21
basal portion	21
somewhat larger	21
rich loam	21
commonly found	21
numerous varieties	21
deep pink	21
become quite	21
free seedlings	21
quite free	21
rio grande	21
rare occurrence	21
central america	21
lake county	21
carefully examined	21
bead magnified	21
moist air	21
nearly related	21
first observed	21
fresh root	21
fifteen inches	21
latter end	21
upper one	21
little white	21
wood anemone	21
well shown	21
female catkins	21
strongly zigzag	21
dense net	21
margin often	21
every way	21
fallen leaves	21
leaves distinctly	21
latter cases	21
double row	21
rarely seen	21
dry pastures	21
western new	21
smooth plant	21
widest near	21
often growing	21
spiral ridges	21
next proceeded	21
extremely small	21
main branches	21
edge even	21
fraxinus americana	21
tall trees	21
early stages	21
upper valve	21
central europe	21
somewhat crowded	21
winter season	21
different directions	21
hypoderm biform	21
plants contained	21
daucus carota	21
evergreen shrub	21
sur les	21
transverse rows	21
slight inflection	21
one knows	21
northern mythology	21
perennial plants	21
special purpose	21
juglans nigra	21
bark dark	21
bowling green	21
positive phototropic	20
reader may	20
boletus edulis	20
timber tree	20
transverse direction	20
primordial utricles	20
pale bluish	20
often quite	20
almost wholly	20
douglas fir	20
siberian ditto	20
pitch pine	20
broad leaves	20
highly developed	20
last named	20
rhus toxicodendron	20
minutely velvety	20
white beneath	20
always present	20
calcareous deposits	20
cotton wool	20
will go	20
numerous flowers	20
tsuga canadensis	20
easily worked	20
will never	20
plane tree	20
forty years	20
oak quercus	20
care must	20
almost round	20
minute particles	20
close resemblance	20
smoked glass	20
diospyros virginiana	20
spores oblong	20
celled ovary	20
outer coat	20
et seq	20
young growth	20
feet wide	20
du roi	20
thermal radiation	20
winter use	20
strongly developed	20
will prevent	20
like form	20
excitatory reaction	20
toothed lobes	20
scarcely possible	20
salmon color	20
dark colored	20
th report	20
pleasure ground	20
rocky slopes	20
deep rose	20
reader will	20
small extent	20
principal stem	20
two legs	20
peculiar form	20
named varieties	20
spore cases	20
fully ripe	20
sir joseph	20
parent plant	20
morchella esculenta	20
one great	20
trees growing	20
twining plants	20
words meaning	20
round head	20
somewhat different	20
grow together	20
extremely minute	20
numerous minute	20
growing among	20
two main	20
arctic regions	20
introduced species	20
cauterised radicles	20
additional hours	20
older leaves	20
several small	20
may add	20
usually quite	20
will afford	20
des bot	20
diurnal variation	20
erect stems	20
though often	20
phototropic curve	20
furrowed bark	20
several large	20
succeeding generations	20
last two	20
cork elm	20
often much	20
twenty inches	20
several glands	20
populus balsamifera	20
somewhat pubescent	20
also sometimes	20
radiating lines	20
seed bed	20
branching stem	20
hedge mustard	20
flower stalks	20
club moss	20
internal structure	20
remind us	20
first generation	20
zigzag lines	20
delicate flowers	20
spring cal	20
pussy willow	20
transmitted effect	20
never found	20
soft maple	20
leafy bracts	20
central stem	20
northern counties	20
loose cluster	20
cultivated species	20