Obdee 97.— ASCLEPIADACB^. 



593 



almost truncate at apex, horns arcuate, falcate, inflexed. — la shad7 grounds 

 prairies, Mid., W. and S. States. St. 2 to 3f high, bearing a single (rarely 2) 

 terminal umbel of 30 to 40 large, reddish green or greenish flowers. Lvs. 4 to 5' 

 long, a third as wide, with a broad, rounded, muoroaate apex Petals i" long. 

 Corona nearly white, its segments large, slightly 2-toothed. Jl. (A Meadii Torr. 

 ex. descr.) 



12 A. aniplesicaCilia Mx. St. simple, flexuous, often tortuous above, smooth ; 

 lvs. ovate, obtuse, not muoronate, cordate, closely sessile, glabrous and glaucous ; 

 ped. lateral and termin?,l, many-flowered; petals ovate, reflexed, twice shorter 



than the slender pedicels ; hoods ovate, including the acute, recui-ved horns. 



Fields, copses, S. Car. to Fla. and Ala. St. clothed with large lvs., 1 to 2f high. 

 Lvs. 2 J to 5' long, two-thirds as wide, beautifully netted with peUucid veins, base 

 lobes large, rounded. Petals 3" long, of a light dull purple. Apr.— Jn. 



13 A. inoamata 1. St. tall, branching above ; lvs. opposite, lanceolate on short 

 petioles, slightly tomentous ; umbels numerous, erect, mostly terminal, often in 

 opposite pairs ; hoods ovate-oblong, with subfalcate, ascending horns. — A hand- 

 some species found in wet places. Can. and U. S. St. 3 to 4f high, with 2 hairy 

 Imes. Lvs. 4 to 1' by 6 to 18", rather abrupt at base, tapering to a very acute 

 point, on petioles 6" long. Umbels close, 2 to S together at the top of the stem 

 or branches, each an inch or more in diam., 10 to 20-flowered. Cor. deep purple, 

 corona paler. Jl. f 



/?. PffLOHRA. St. and Its. densely tomentous, the latter elliptic-lanceolate. — 

 St. 4 to Gfhigh. t 



14 A. tuberosa L. Butteeplt 'Weed. St. ascending, hairy, with spreading 

 branches at top ; lvs. alternate, oblong-lanceolate, sessile ; umbels numerous, form- 

 ing a large, terminal corymb ; hoods bright orange, oblong, narrow, with slender, 

 subfalcate, suberect horns. — Dry fields. Can. and XJ. S. Root large, fleshy, send- 

 ing up numerous stems 2f high, leafy. Lvs. scattered, only the upper ones quite 

 sessile, acute or acuminate, obtuse at base, 2 to 4' by G" to 1'. Corymb of nu- 

 merous, bright orange-colored flowers. Petals and crown of equal length (3 to 

 4"). Pods or follicles lanceolate-pointed, and like the other species containing 

 long, silky down. Aug. — Medicinal. 



ISA. Michduzii DecaisniS. Ascending, slender, puberulent ; lvs. scattered (the 

 lowest opposite), long-linear, sessile, mucronate; umbels terminal, solitary or 

 somewhat panicled; petals ovate, greenish white; hoods short, ovate, yellowish, 

 including the short horns. — ^Wet pine barrens, S. Car. to Apalachicola, Pla., and to 

 La. St. 12 to 18' high. Lvs. 3 to 4' long, 1 to 3" wide, rather numerous. Flower 

 buds greenish, scarce 2" long, sweet-scented. May, Jn. (A. longiiblia Mx. in 

 part. A. angustifolia EIL) 



16 A. verticillafa Ell. St. erect, simple, marked with pubescent lines; lvs. 

 generally verticillate, very narrowly linear, revolute ; hoods short, 2-toothed, horn 

 falcate, oxserted. — A slender and delicate species, 2f high, in swamps or moist 

 meadows. Can. and XJ. S. Lvs. in whorls of 4 to G, 3 to 5' long, a line in width. 

 Fls. small, greenish white, in small, lateral umbels. Ped. half as long as the 

 leaves. Jl. 



17 A. patip^rcula Mx. St. virgate, erect, glabrous; lvs. linear and linear-oblong, 

 margins narrowly revolute, both sides glabrous, tapering into u. short petiole ; 

 ped. 1 or 2 at top of the stem, wmbcl puberident, few (6 to \0)-ftowered ; fls. large; 

 petals oblong, half as long as the pedicels ; hoods ovate, dilated above, horns short, 

 included. — N. J. to Ga. and La., in wet woods. St. 3 to 4f high, very smooth. 

 Lvs. green on both sides, rough on the edges, mostly very narrow. Pet^ pui-ple, 

 4" long. Crown stipitate, yellow. Jl., Aug. (A. lanoeolata Walt.) 



18 A. cinera "Walt. Erect, virgate, smooth : lvs. oyposite, narrowly linear or fili- 

 form, acute, edges revolute ; ped. aliernale at summit of the naked stem, very few 

 (3 to 6)-flowerecl, bracteolate; petab ovate-oilong, thrice shorter than tlie pedicels; 

 hoods shorter than the stamens, including the horns. — Damp barrens, S. Car. to 

 Fla. Sts. very slender, 2 to 3f high. Lvs. 1 to 3' long. Petals 2 to 3'' long, of 

 ^.n ashy and glaucous purple. Jn., JL 



19 A. curassivioa L. Half-shrabby and branched at base, puberulent ; st 

 terete : lvs. linear-lanceolate and lanceolate, acuminate, petiolate ; umbels solitary, 



38 



