1070 ASCLEPIADACEAE 
cium, rounded at the apex; horn subulate, mueh shorter than the e ae 
8 em. loi uj —Swamps and low pinelands, Coastal Plain, Fla. and 
-su 
7. A. purpurascens L. Stem 3-12 dm. tall, pubescent in lines or becoming 
glabrous: leaf- blades mainly ovate or elliptic- -ovate, 9-20 em. long: corolla- 
lobes purple, 8-10 mm. lon E hoods E 5-5 mm. long E ully twice as long as the 
androecium, ovate at the entire apex; horn mueh shorter than the hood, with a 
horizontal subulate tip: follieles 10-12 em. long.—(PURPLE-MILKWEED. )—Dry 
grounds, various provinces , N. C. to Okla., Kans., Minn. and N. H.; reported 
M from Miss.— Sum. 
mple s J. E. Smith. Stem erect, 3-10 dm. tall, glaucous: leaf- 
ae pocneniy EIU 6-12 em. long, sessile and clasping: eee s 
greenish-red or gr reenish-purple, 7—9.5 mm. long: hoods about 4 m ong, 
roon, exceeding the androecium, SI. several "bed at the trune i s xj 
horn subulate, much exserted ; follicles 8-16 em. long. [A. 0 dc de Miehx.] 
—īn dry or sandy soil, various provinces, Fla. to Tex., Nebr., sH 
. A. humistrata Walt. Stem prostrate, 3-9 dm. long, glaucous: leaf-blades 
vertical, alike on both sides, ovate, ə 5-13 cm. long, glaucous, o veined: 
corolla-lobes gray or greenish-purple, 6-7 mm. long: hoods about 3.5 mm. long, 
white. much exceeding the androecium, broadly rounded; horn broa d an a flat 
scarcely exserted: follicles 8-15 cm. long.—Pinelands, scrub and S adhille 
Coastal Plain, Fla. to Miss. and N . C.—Spr.-sum. 
10. A. exaltata (L.) Muhl. Stem 9—15 dm. tall, sometimes ui auus in lines 
above: leaf-blades ovate, aes elliptic or elliptie-lanceolate, 1-2.5 . long: 
corolla-lobes greenish or greenish- oe urple, 7-10 mm. long: hoods 3541 mm. long, 
white or flushed with pink, bod t equa ling the andro oecium, truncate, the broad 
top irregularly lobed, the lateral lobes the longest - horn with a much exserted 
subulate in acd x P E em. lo m xu parawEED) c Im thiek- 
Me. 
11. yriaca L. Stem 5-15 dm. tall, en Mun pa leaf- Geiss 
elliptic or elliptic- -ovate, 9-25 em. long: a-lobes M ala rple, 6-8 m 
long: hoods usually white, sometimes iine) 3—4 m ong, ELI. the 
androecium, obtuse; horn ' subulate, shorter than the head anther-wings much 
longer than wide; folli 7-9 em. long, echinate.—(COMMON-MILKWEED. )— 
Fields and waste-places, various provinces, Ga. to Kans., Sask., and N. B. 
curassavica L. Stem 3-19 dm. tall, x d AS pubescent 
above: leaf-blades elliptic to elliptic-lanceolate, 5- 12 em. long or more, glabrous 
early so: cor aes scarlet, 6-8 m m. long: colu mn 1-1.5 m m. long: hoods 
ou 3.5—4 mm. long, yellow, exceeding EG androecium; hor out, incurved, 
exceeding mel hood: follicles 6-10 cm. long.—In sandy soil, o Plain, W 
Fla and La. 
13. A. ata L. Stem 6-11 dm. tall, glabrous or nearly so: leaf-blades 
mainly Ee Brie td laneeolate, or linear. lanceolate, ig em. long, glabrous 
or nearly so: corolla- obes pink or rarely white, 4-6 m long: hoods ovate, 
purplish-pink, 2.5-3 mm. long, som what exceeding the were E horn slen- 
der, much longer t han the hood: follicles 7-9 em. long.—(SWAMP-MILEWEED. - 
Swamps, various provinees, N. to La., N W Terr., Ont., and N. B. —Sum 
4. pulchra Ehrh. Stem 5-15 dm. tall, closely pu ubescent: leaf-blades 
ve laneeolate to elliptic, 6-12 em. long, pubescent: corolla-lobes nae 
nk, abou 
pink to purple or rarely white, 5-6 mm. long: hoods ovate, deep-pi 
mm. long, slightly exceeding the androecium ; horn slender, much lo ger than 
the hood: fo 8 ng.—In moist fields and swamps, various pro 
inces, Ga. to Minn. and Me.—Sum.—fa 
