ASCLEPIADACEJE (MILKWEED FAMILY.) 347 



6 - 10- flowered ; corolla red ; leaves of the crown oblong, erect, bright orange, 

 more than twice as long as the subulate incurved horn, and the short-stalked 

 gynostegium ; follicle lanceolate, minutely pubescent. Marshes, Florida, and 

 northward. June- July. Stem 2 -4 high. Leaves 6' -12' long. Corolla 

 3"- 4" long. 



16. A. Curassavica, L. Stem somewhat shrubby, branching, slightly 

 pubescent ; leaves lanceolate, acuminate, smooth ; umbels corymbose, loug- 

 ped uncled, 8 10-flowered, pubescent; corolla scarlet; leaves of the crown 

 bright orange, oblong, erect, longer than the stalked gyuostegium, shorter 

 than the thick incurved horn ; follicle ovate-lanceolate, velvety. South 

 Florida. April - Nov. Stem l-2 high. Leaves 3' -4' long. Corolla 

 3" long. 



17. A. perennis, Walt. Stem branched, pubescent in lines, shrubby at 

 the base ; leaves thin, lanceolate or oblong-lanceolate, tapering at each end ; 

 umbels 5-7, long-ped uncled, pubescent, the upper corymbose; corolla small, 

 white; leaves of the crown spreading, half as long as the needle-shaped, erect 

 horn; follicle ovate-lanceolate, smooth. Muddy banks of rivers, Florida to 

 South Carolina. June - August. Stem 1- 2 high. Leaves 2' 4' long. 



-t- 4- -t- -<- L'/iper and lower leures mostly opposite, the middle ones wltorled. 



18. A. quadrifolia, Jacq. Somewhat pubescent ; stem slender, simple ; 

 leaves thin, ovate or ovate-lanceolate; umbels 2 5, many-flowered; corolla 

 pale pink ; leaves of the crown white, oblong, obtuse, twice as long as the 

 gyuostegium and stout horn. Mountains of Carolina and Georgia. June- 

 Augiist. Stem 1- U high. Leaves 2' -3' long. 



19. A. verticillata, L. Stem slender, branching, pubescent; leaves 

 narrowlv linear, with the margins revolute, 4-5 in a whorl; umbels several; 

 corolla greenish ; leaves of the crown white, roundish, half as long as the 

 slender incurved horn. Open woods and fence-rows. July -Sept. Stem 

 2-3high. Leaves T- 2' long. Follicle smooth. 



*-*-*--*-*- Lf.uces alternate, or the lowest opposite. 



20. A. tuberosa, L. Hirsute; stem erect or declining, widely branched 

 above, verv leafy; leaves from linear to oblong, short-petioled ; umbels nu- 

 merous, corymbose; corolla yellowish orange; leaves of the crown bright 

 orange, erect, oblong-lanceolate, twice as long as the gynostegium, and rather 

 longer than the slender incurved horn. Light dry soil, common. June- 

 July. Stem l-2 long. 



21. A. angUStifolia, Ell. Pubescent; stems several, prostrate ; leaves 

 linear, erect, the lower ones mostly opposite; umbels 1-3, terminal ; flowers 

 gray and purple ; leaves of the crown ovate, spreading, as long as the subu- 

 late horn, and longer than the gynostegium ; follicle long, linear-lanceolate 

 tomentose. Low sandy'pine barrens, Florida to South Carolina. April - 

 May. Stems 6'- 12' long. Leaves 3' -4' long. Follicle 4'- 5' long. Flow- 

 ers fragrant. 



2. ACERATES, Ell. 



Leaves of the crown destitute of a horn-like appendage. Otherwise like 

 Asclepias. 



