SECTION 
IV. 
SPECIES OF PLANTS. 
The names in Itulics following tlie figures, stand for the natural families ofJussieu, tohicA 
are now superseded hy an improvied system of classijication. See Table commencing ai 
page 21 of the Appendix. 
cles in a nodding corymb. Large trea 
50 f. Fmit ovoid, smooth, tlie wings abovi 
[From an inch long. 
stt ia'tum, (striped maple, false dogwood, 
glandnlo'sn, (w. Ju. 2X-) leaves bipinnate, moosewood, g. M. 1?.) lower leaves round- 
' ish, upper ones 3-cuspidate-acuminate, 
sharply serrate, glabrous; racemes simple, 
«IJI'ES. See PiW. 
ABU'TILON. See Si'da. 
ft.CA'CTA. 15—10. (LeguminostB.) 
the Greek aka'zo, to sharpen 
leafets 12-paired, glands between each 
pair; spikes globose, solitary, peduncled 
axillary; legimie falcate ; unarmed. S 
farnesia'na, (black thorn, y. ^.) leaves 
bipinnate, leafets 8-paired ; spikes globose, 
eessile. Flowers fragrant; legumes fusi- 
form. S. 
ACAL"YPHA. 19—15. (Euphorbia:.) [From 
the Greek a, not, kalos, agreeable, aphe, to 
the touch.] 
virgin"ica, (three-seeded mercury, g. Au. 
0.) piibescent; leav(!.s on short petioles, 
lanceolate-oblong, reaiotely and obtusely 
serrate ; involucre cordate, ovate, acumi- 
nate, toothed ; fertile iiowers at the base of 
the sterile spike. Road-sides. 12 to 18 i. 
Var. cayoliuia'tia, with longer petioles and 
broader leaves. 
A'CER. 8—1. (Accra.) [Latin acer, acrid, 
referring to the juice of some of the species.] 
dafsycar'pnm, (white maple, silver maple, 
g-y. f?). leaves palmate, 5-lobed. truncate at 
the base, unequally gash-toothed, glabrous 
and glaucous beneath, obtusely sinuate ; 
flowers glomerate ; pedicels short ; germs 
downy. .50 f Fruit a samara. 
barba'tum, (hairy maple w-g. Ap. f>.) 
leaves heart-ovate, short, 3-lobed. unequally 
serrate, glaucous beneath, and hairy at the 
nerves ; peduncles hairy, staminate ones 
branching, pistillate ones simple; calyx 
bearded within ; wings of the capsules 
erect ; small. 15 f. 
ni'i^rum, (sweet tree, black maple, y. 
Ap. 7.) leaves palmate, 5-lobed, cordate, 
with the sinus at the base closed, lobes 
spreading, sinuate-toothed, downy beneath ; 
ftowers corymbed; capsules turgid, sub- 
globose; wings diverging. Large tree, 
affording almo.st as much sugar as the sugar 
maple. 50 f. 
spica'tum, (mountain maple bush, y-g. M. 
b -) lea^es sub-5-lobed, acute, toothed, pu- 
bescent beneath ; racemes compound, erect. 
»5 {. Mountains. 
ru'bnim, (red maple, soft maple, r. Ap. 
•p .) leaves palmate, 5-lobed, cordate at the 
base, unequally gash-toothed, glaucous be- 
neath, sinuses acute ; flowers in about fives, 
m sessile umbels, with long pedicels ; germs 
glabrous; stamens variable. Precocious. 
sacchan'num, (sugar maple, rock maple, 
oard maple, r. y. M. ^ .) leaves palmate, 
6-lobed, at the bas<> sub-cordate, acuminate, 
Biuuate-toothed, glaucous beneath ; pedun 
pendant. Small tree, with a greenish, 
striped bark. 15 f. 
ACER"ATES.* 18—5. (Asclepiadm.) [From 
tlie Greek a, without, keras, horn.] 
virid"ifl(yra, (green milkweed, g. Ju. 2.^.) 
stem erect, simple, hairy; leaves oblong, 
on short petioles, tomentose, obtuse ; um- 
bels lateral, solitary, sub-sessile, nodding, 
dense flowered ; umbels about 3 ; horns 
of the nectary wanting. Sandy fields 
Stem 2 f. 
ACHTLLE'A. 17—2. (Corymhifera.) [From 
the Greek warrior AchilI.es.'i 
mdlefo'lium, (yan'ow, milfoil, w. J. 2.f .) 
leaves 2-pinnatilid, downy, the divisions 
linear, toothed, mucronate ; calyx and stem 
furrowed ; flowers in large, dense, terminal 
corymbs ; rays about 5 ; disk -florets few ; 
receptacle flat, chaffy, the chaff lance- 
oblong. Naturalized. 15 i. S. 
ACIIYRAN"TnES. 15—5. (Amaranth. 4 
[From the Greek achu'ron, chaff, ana anthos, 
flower.] 
reopens, (forty knot, March. 2^.) stem pro- 
cumbent, pubescent ; leaves opposite, pe 
tioled, lanceolate. Flowers in heads. 
ACNl'DA. 20—5. (Chcnopodea.) [From the 
Greek a, wanting, knide, a sting.] 
cannabi'na, (water hemp, w. g. Ju. 0.) 
leaves ovate-lanceolate ; capsules smooth, 
acutely angled. Marshes. Can. to Flor. 
Flowers small, green, in large panicles. 
ACONI'TU.M. 12—5. (Ranunculacece.) [From 
the Greek akone, rugged, in allusion to its 
habit.] 
uncina'tnm, (monk's hood, b. J. 11.) stem 
flexuose ; leaves palmate, 3 to 5-parted, 
divisions rhomb-lanceolate, gash-toothed ; 
upper lip of the corolla lengthened, convex, 
beaked; stem twining, branching. Grows 
on mountains and rough places. Culti- 
vated. 2 f. 
napeV'lus, (wolfs bane, b. J. Z^.) leave.^ 
shining, 5-parted, the divisions 3-parted, 
subdivisions linear ; upper lip of the corolla 
lanceolate, as'jending, 2-cleft, spur straight 
obtuse. 2 f. Ex. 
ACO'RUS. 6—1. (Aroidcoi.) [From a, with- 
out, and A:o7-c, the pupil, because it w«ji es- 
teemed good for disorders of the eyea.J 
caU'amus, (sweet flag, g-y. J. 2/.) spilio 
16 
* This fenus is scarcely distmct from A.8' 
clepias. 
