ASCLEPIADACE^. (mILKAVEED FAMILY.) 363 



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

 leaves oblonjj or o!)long-lanccolatc, acute, nearly sessile ; umbels numerous, 

 somewhat corvmbosc, long-pcdunded, often compound ; pedicels erect, much 

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

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

 sbort-stalkcd gynostegium. (A. pulchra, Willd.) — Swamps in the upper dis- 

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

 4' - C long. 



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

 leaves oblong or o!)Ioiig-lanceolate, cuspidate, undulate, somewhat hoary beneath, 

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

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

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

 erect horn. (A. aceratoidcs, M. A. Ciirlis.) — 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 ^' wide. Follicles 

 lanceolate, tomentose, 4' -6' long. 



7. A. obovata, Ell Tomenfoso; ptem 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 largo yellowish-green corolla ; 

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

 the incurved horn ; follicle tomentose. — Dry gravelly or sand}' 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, nairoiced 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-flowercd, the slender drooping pedicels longer than the peduncle; 

 flowers small, jiurple w-ithout, 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 baiTCns, 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. vtridula, n. sp. Stem slender, ])ubescent in lines ; leaves linear, 

 erect; uni!)cls shorter than the leaves, 6- 12-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. 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, G - 10-llowcred ; pedicels pubescent, about as 



