1282 ASARACEAE 
II. PENTANDRAE. 
Diffusely twining vine with fleshy leaf-blades and globular 
drooping capsules. 4. A. pentandra. 
III. MACROPHYLLAE 
Young foliage densely tomentose: leaf-blades coriaceous: 
hypanthium tomentose 5. A. tomentosa. 
Young foliage md pubescent or glabrous: leaf-blades 
membranous : hypanthium glabrous. 6. A. macrophylla. 
1. A. hastata Nutt. Plant ir Las, $i dm. tall: leaf- s M thin, 
linear to lanceolate, hastate, 2 ong: flowers about long: 
ant d 
e or Beier rple: ae ule 5-11 m 
diam eed 3.5-4 m see ve with eae 
a papillae on the face. x Nash 
Kearney] — (SNAKEROOT.) — Damp woods, 
various i Fla. to Ta. RE S Va.— 
Sum. 
A. Serpentaria L. Plant dark-green, 1—4 
dm. tall: leaf-blades ree -laneeolate to 
oval- en E ra ie eolate, 4-1 
long; fiov 1-1.5 one: hypanthium 
villous- fe ae ne purple; limb ob- 
tusely 3-lobed: capsule about 10 mm. in 
diameter: seed about 4 mm. OE with many 
approximate papillae on its ce.—( VIR 
NIA-SNAKEROOT. )—Rich w Dod. pues provinces, Fla. to Tex., Mo., Mich., 
and Conn.—Spr.—fall. 
3. A. convolvulacea Small. Plant bristly-pubescent, 1-3 dm. tall: leaf-blades 
broadly ovate to oval, 2-8 em. long: flowers about 1.5 em. Ei hypanthium 
densely hirsute: calyx purplish; limb 3-lobed: sir 6-8 mm. in diameter. 
— Woods, Piedmont to Appalachian Plateau, Ga.—Spr.-sum. 
4. A. pentandra Jacq. Stem reclining in twining: leaf-blades ovate, 4-10 
em. long: hypanthium minutely pubescent: calyx nearly straight, greenish or 
purplish, the limb ni cs erect: capsule globular, 15-20 mm. long, wing- 
angle d: see a blaek, ne . lo ong.—Coastal hammocks, S Pen. "Fla. and the 
Key —(W. I.)— All yea 
A. tomentosa Sims. Stem s high-elimbing, the branches down 
leaf-blades ete to suborbicular, 10-18 em. long, rounded at the apex: Enn. 
wanting: calyx abruptly bent dod the sone the or mb 2-2.5 em. wide, yellow- 
ish or greenish-yellow, except the pu urple orifice, rugose: capsule 4—6 em. long. 
(PIPEVINE.)— Woods, various provinces, Fla. to Okla., Mo., Ill, and N. C.—Spr. 
1311 
6. A. phylla La Stem greatly elongate, climbing, the branches dd 
brous or nearly so: leaf- “blades suborbieular to broadly ovate, 5-25 cm. lon 
abruptly acute or obtuse: peduncles 1-2 em. long: calyx abruptly bent Ebor 
the ovary, the limb 2-3 em. wide, brown or yellowish, veiny: capsule 5—6 cm. 
long. [4. Sipho L'Her.]—(DUTCHMAN'S PIPE. pid various provinces 
N of Coastal Plain, Ga. to Kans., Minn., and Pa.—Spr.- 
Aristolochia maxima L. of tropical America and cultivated, with large 
variegated flowers aa aa 1-1.5 dm. long, has escaped from cultivation 
into hammocks in 
