AsCLEPiAs. PENTANDRIA. DIGYNIA. 283 



Roem. SiSchult.Vl.p. 14. A. parviflora E I li o 1 1 Sk. 

 I. p. 323? Pluk. Amal. t. 359. f . 5 ? 



Leaves large. Flowers white. 



Hab. On shady rocky situations, near rivulets. New-York to 

 Carolina. Pursh. 



Elliott considers the A. debilis of Michaux as his 

 fiarviflora^ but they are not united by Pur s h or Mu Men- 

 berg. 



10. A. acuminata Ph. : stem erect, smooth, simple ; leaves 

 ovate, subcordate, acuminate, subsessile : umbels lateral, so- 

 litary, erect; nectary acute ; horns scarcely exserted. Pursh 

 F/. I. p. 182. Roem. <i' Schti It. \l. 1^.74. A. periplo- 

 cce folia J^'utt. Gen. 1. p. 167 > A. cordata Walt, Car, p. 

 105. 



Root a large round tuber. Stem a foot and a half high, very 

 smooth. Leaves ovate-lanceolate, smooth on both sides ; the 

 lower ones on very short petioles; the upper ones sessile. 

 Umbels generally about 2, crowded. Corolla purple within, 

 greenish on the outside. Leaflets of the nectary oblong, pur- 

 ple, longer than the antheridium ; horn simply subulate. Fol- 

 licles smooth. 



Hab. In sandy swamps in the pine barrens of New-Jersey ; 

 rare. Augusto 



JVu ti all cites, as synonyms of this species, A. laurifolia 

 Mich, and Pluk. Jim. t. 358 f. 5; and, indeed, the A. 

 laurifolia^ as described by Elliott^ differs in scarcely any 

 respect from the A. acuminata, as I have observed it in New- 

 Jersey. 



1 1. A. quadrifoUa J ac q. : stem erect, simple, smooth ; 

 leaves by fours, ovate, acuminate, petiolate ; umbels 2, ter- 

 minal, erect, loose; pedicels capillary; nectary bidentate : 

 horn very short. J acq. Obs. ]\. t, 33, PurshFl.I.^, 

 133. M uhl. Cat.]^. 28. EI lio 1 1 Sk. \.-p. 3VJ. ^rutt. 

 Gen. I. p. 167. Roem. SiSchult.Y\,p. 76. A. caule 

 erecto, foliis ovato-lanceolatis, &c. Cold. Novth, 43. 

 Apocynum umbellatum album latiore foliis tetraphyllum, «fec. 

 Pluk.Mant.p.A6. 



Stem a foot and a half high, slightly pubescent. Leaves gene- 

 rally 8, of which the 4 middle ones are approximated in a cru- 

 ciate manner; sometimes the lowest pair is wanting. Umbels 

 on long peduncles, about 20-flowered ; fiedicels an inch long, 

 very slender. Flowers small, sweet scented. Corolla white. 

 Leaflets of the nectary oblong, as long again as the antheri- 

 dium, acute, slightly cucuUate, with 2 acute teeth below the 

 middle ; horn falcate, about half as long the leaflet. Follicles 

 smooth. 



Hab. In dry stqny v/oods. June. 



