ASCLEPIADACE^E. (MILKWEED FAMILY.) 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 crown 

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

 short-stalked gynostegium. (A. pulchra, Willd.) Swamps in the 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-petibled ; 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. Curtis.) 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 ; stom 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. 



-t- -i- Leaves opposite, lanceolate or linear, narrowed 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; umbels shorter than the leaves, 6 - 1 2-flowered, the erect or spreading 

 pedicels 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. paupei'CUla, 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-floweral ; pedicels pubescent, about as 



