ASCLEPIADACE^. (mILKWEED FAJMILY.) 363 



5. A. incarnata, L,, var. pulchra. Hairy ; stem erect, branching j 

 leaves oblong or oblong-lanceolate, acute, nearly sessile ; umbels numerous, 

 somewhat corymbose, long-peduncled, often compound ; pedicels erect, much 

 shorter than the peduncle ; corolla small, reddish-purple ; leaves of the crowTi 

 flesh-color, ovate, as long as the slender incurved horns, and twice as long as the 

 short-stalked gynostegium. (A. pulchra, WiUd.) — Swamps in tlie upper dis- 

 tricts, Georgia, and northward. June and July. — Stem 3° -4° high. Leaves 

 4' - 6' long. 



6. A. tomentosa, Ell. Pubescent or villous ; stem stout, very leafy ; 

 leaves oblong or oblong-lanceolate, cuspidate, undulate, somewhat hoary beneath, 

 abruptly short-petioled ; umbels 4 - 10, alternate, nearly sessile, many-flowered ; 

 pedicels three times as long as the large greenish corolla; leaves of the crown 

 obovate, truncated, shorter than the gynostegium and the broad abruptly pointed 

 erect horn. (A. aceratoides, M. A. Curds.) — Dry sandy pine barrens, Florida 

 to North Carolina. June and July. — Stem l°-4° high. Leaves 2' -3' long, 

 thick, on rather slender petioles. Pedicels 1' long. Corolla j' wide. Follicles 

 lanceolate, tomentose, 4' -6' long. 



7. A. obovata, Ell. Tomentose; stem stout, very leafy; leaves thick, 

 oblong-oval or obovate, cuspidate, undulate ; the midrib, like the short (2" long) 

 petiole, very thick and prominent ; umbels nearly sessile, closely 10 - 14-flowered ; 

 the stout pedicels barely twice as long as the large yellowish-green corolla ; 

 leaves of the crown purplish, twice as long as the gynostegium, and equalling 

 the incurved horn ; follicle tomentose. — Dry gravelly or sandy soil, Georgia, 

 Florida, and westward. June and July. — Stem l°-2° high. Leaves and 

 flowers as large as those of the preceding. 



-I- -1— Leaves opposite, lanceolate or linear, naiToived into a petiole. 



8. A. cinerea, Walt. Stems erect, slender, pubescent in lines ; leaves 

 long, narrowly linear, distant, spreading; umbels 3-6, commonly longer than the 

 leaves, 5-7-flowered, the slender drooping pedicels longer than the peduncle; 

 flowers small, purple without, ash-color within ; leaves of the crown obliquely 

 truncated, 2-toothed at the inner angle, shorter than the gynostegium, longer than 

 the thick horn; follicle smooth, linear. — Flat sandy pine barrens, Florida to 

 South Carolina. June- Aug. — Stem l°-2° high. Leaves 2' -3' long, 1" 

 wide, somewhat glaucous; the uppermost often minute. Corolla 3" -4" wide. 

 Follicle 3' -4' long. 



9. A. viridula, n. sp. Stem slender, pubescent in lines ; leaves linear, 

 erect; nmlicls shorter than the leaves, 6- 12-flovvered, the erect or spreading 

 Iiedicels as long as the peduncle ; corolla small, yellowish-green ; leaves of the 

 crown oblong, spreading at the apex, rather longer than the erect subulate horn, 

 and twice as long as the gynostegium ; follicle smooth, linear. — Pine-barren 

 swamps. West Florida. June and July. — Stem 10'- 15' high. Leaves 2' long. 

 Corolla 3" wide. Follicle 3' long. 



10. A. paupercula, Michx. Stem smooth, tall ; leaves elongated, linear 

 or linear-lanceolate, acuminate, rough-margined, the upper ones small and re- 

 mote ; umbels 2-5, corymbose, 6- 10-flowered ; pedicels pubescent, about as 



