ARUM— ASCLEPIAS- 
77 
ahrota'num, (southern-wood, 14-. and 
stem straight; lower leaves bipinnate ; 
upper ones hair-form, pinnate ; calyx pu- 
bescent, hemispheric. Ex. 
canadenfais, (wild wormwood, w. y. Au. 
2^.) sub-decumbent, scarcely pubescent; 
leaves flat, linear pinr atifid ; branchlets 
spike flowered ; flowers sub-hemispheric ; 
involucre scarious. Receptacles smooth. 
3-4 f. 
cmida'ta, (2^.) stem simple, herbaceous, 
much branched, pyramidal ; radical and 
cauline leaves bipinnate, pubescent; up- 
per ones pinnate, with sub-setaceous, 
alternate, divaricate, somewhat convex 
segments; flowers pedicelled, erect, globe- 
ovate. 2 f. 
A'RUM. IP— 12. {AroidecE.) [From jaron, a 
Hebrew word, signifying a dart, in allusion 
to the shape of the leaves.] 
tnphyl"luni, (Indian turnip, wild turnip, 
wakerobin,p. g. and w. M. 24 .) sub-caules- 
cent; leaves ternate ; leafets ovate, acumi- 
nate ; spadix club -form ; spatha ovate, acu- 
minate, peduncled, with the lamina as long 
as the spadix. One variety, we'Vews, has a 
green spatha : another, atropiirpu'reum, a 
dark purple spatha: another,aZ"AMW, awhite 
spatha. 1-3 f. 
dracon"tium, (Ju, 2^.) stemless; leaves 
pedate ; leafets lanceolate-oblong, entire ; 
spadix subulate, longer than the oblong, 
convolute spatha. Banks of streams. 
Green-dragon. 
atroru'benii, (brown dragon, M. 2_f.) stem- 
less ; leaves ternate ; leafets ovate, acumi- 
nate ; epadix cylindrical ; spatha sessile, 
ovate, acuminate, spreading horizontally 
above. Spatha dark-brown ; disagreeable 
smell. 
quina'tnm, (2/.) stemless; leaves quinate, 
lanceolate, acuminate, i?. 
walte'ri, (Ap.) stemless; leaves sagittate, 
triangular, angles divaricate, acute. S. 
ARTJN"DO. 3—2. (Graminece.) [Latin, sig- 
nifying reed.] 
ca?iaden"xis, (Au. 2_C-) panicle oblong, 
loose ; glumes scabrous, pubescent, as long 
as the corolla ; corolla awned on the back ; 
hairs at the base equalling the valves ; culm 
and leaves smooth. 3-4 f. 
phragmi'tes, (reed-grass, Au. 2_f.) spike- 
lets 3 to 5-flowered ; glumes shorter than 
the florets; paleas awnless, the lower lin- 
ear lanceolate, with a long .slender acumi- 
nation, which is involute and resembles an 
awn. 
aroi'des, (2^.) panicle sub-coarctate, in- 
curved ; glumes 2-flowered, glabrous, une- 
qual ; paleas membranaceous, of tlie length 
of the glumes; hairs equalling the paleas; 
leaves flat, scabrous. S. 
AS" ARUM. 18—12. {Aistolochim.) [From 
a, not, sairo, to adorn, Uiis flower not heing 
admitted into the ancient coronal wreaths.] 
canadeu"se, (white snake-root, wild gin- 
ger, g-p. M. 2i.) leaves broad-reniform, in 
pairs; calyx woolly, deeply 3 parted ; the 
eegments sub-lanceolate, reflexed. 
atifo'linm, (Mar. li.) leaves sub-hastate, 
28 
cordate ; calyx urceblate, border 3-clett, 
converging, pubescent within. S. 
ASCLE'PIAS, 18—5. (Apocynetz.) [Sup- 
posed to have been named in honor of the 
founder of medical science, jEsculapius. or, 
as he is sometimes called in mythology, 
Asclepois.] 
A. Leaves opposite. 
syri'aca, (common milkweed, w-p. Ju. 
IX.) stem very simple ; leaves lanceolate- 
oblong, gradually acute, downy beneath ; 
umbels sub-nodding, downy, 3 to 5 feet 
high; flowers in large close clusters, sweet- 
scented. 3 5 f . 
incarna'ta, (r. Ju. 2/.) stem erect, branch- 
ing above, downy ; leaves lanceolate, sub- 
downy both sides; umbels mostly double 
at their origin ; the httle horn of the nec- 
tary exsert. A variety, puV'chra, is more 
hairy. Var. ^Zfl!'&7-a, almost glabrous. Var. 
aZ''^a,has white flowers. Damp. 3 f. 
ohtusifdlia, (J. 24!.) stem single, erect; 
leaves clasping, oblong-obtuse, undulate on 
the margin, very smooth, glands beneath ; 
umbel terminal, long peduncled ; horns of 
the nectary exsert. Stem 3 f. Leaves 
much waved on the margin. Flowers 
large, pale purple. 
phytolaccoi'des^{Zn. li.) stem erect, sim- 
ple ; leaves broad-lanceolate, acuminate, 
smooth, pale beneath ; umbels many-flow- 
ered, lateral and terminal, solitary, on 
long peduncles, nodding ; nectary 2-toothed. 
Wet; rocky grounds. Flowers large, 
greenish purple, 3 f. 
quiidrifo'lia, (w. p-w. M. IX) stem erect, 
simple, glabrous ; leaves ovate, acuminate, 
petioled ; those in the middle of the stem 
are largest, and in fours ; umbels 2, ter- 
minal, lax-flowered ; pedicels filiform. 
18 i. Flowers small and sweetscent- 
ed. 
amce^na, (p. J. 2^.) stem simple, a little 
hairy on two sides ; leaves sub-sessile, ob- 
long-oval, pubescent beneath ; terminal 
umbels and nectaries erect, appendages 
exsert. Damp. 
pi(,rpiiras"ccns, (p. Ju. 2|.) stem simple ; 
leaves ovate, villose beneath ; umbels erect ; 
horn of the nectaries resupinate. Shades. 
2 f. 
puVchra, (r. Ju. 1^.) leaves lanceolate, 
hairy beneath ; stem divided near the 
top ; umbels erect, in pairs ; flowers small ; 
bark very showy. 
variega'la, (w. Ju. 2X-) stem simple, 
erect; leaves ovate, petioled, rugose, na- 
ked ; umbels sub-sessile, pedicelled, tomen- 
to.se. The umbels dense. 
parvijlo'ra, (w. Ju. 2^.) smoothish ; stem 
weak, erect, simple ; leaves petioled. oval- 
lanceolate, acute at both ends, membrana-' 
ceous ; umbels terminal, lax-flowered ; pe- 
dicels capillary. The bark a good substi- 
tute for flax, 1-2 f. 
B. Leaves not opposite. 
verticilla'ta, (dwarf milkweed, g-y. w. 
Ju. 2|.) stem erect, very simple, marked 
with lines, and small pubescence ; leaves 
