172 PBNTANDRIA DIGYNIA 



sides, scabrous-ciliate on the margin, sulsessile, orjon petiole! scarcely 1 fourth 

 of an inch long, ihe upper ones often quite sessile, Umbel mostly solitary and ter 

 initial, •vtmelimes 1 or 2 additional, subterminal ; common peduncle 2 to 3 inches 

 long, pubescent on one side ; pedicels about an inch long, pubescent on one side 

 with subulate bracts at base. Corolla yell >wisb great) externally, purple within. 

 Lepanthium purple, tinged with greenish orange ; segments tance-obl< ng, abruptly 

 narrowed at base, nearly as long as the corolla, the infolded margin with anol 

 tooth on each side near the base; horns subterKe, gradually tapering lo a | oint 

 slightly incurved, nearly as long as t!ie segments. Follicles 3 to 1 inches long, *: 4 

 2 thirds of an inch in diameter,, ve:. trice ae, acuminate, nearly smooth. 



Ifab. N. Valley hilfj Hear Gunkle's,& Brooke's Mill : rare. /•'/. July-Aug. fV.Sepi. 

 Obs. This neat pretty Species is quite rare with us; and has only been found is 

 the above locality,— where it was collected I y D. Ti wnsbnd, Esq. in 1820. 



7. A. ixcarxata, L. Stem branched above : leaves lanceolate, smooth- 

 ish, or toraentose-pubescerit, on short petioles; umbels numerous ter- 

 minal and subterminal. erect, generally in oposite pairs ; segments uf the 

 lepanthium entire; horns subulate, exerted. Beck, Hot. p. 235. 



A. pulchra. Bigel. Boat. p. 103. Also, tVUUL Sp. I. p. 12C7, Mufil. 

 Catal. p. 28. Bart. Phil. I. p. 132, lindl. Ency. p. 198, Eat Man 

 p. 32. 

 Flksh-colored Ascmmas. 



Stem 2 to 3 or 1 feet high, erect, with alternate or opposite axillary upright ami 

 some what corymbose branches, tos^ards the summit, smpothlsh with pubescent 

 lines, or coarsely tomentose-pube see nfc Leaves 3 to G inches long, and half an huh 

 to an inch or inch and half wide, very acute, often obtuse and aim i>~ truncate 

 at base, smoothish, or hairy; petioles one feurth to half an inch long I'm- 

 beh rather small, numerous, and chietly terminal ; common peduncles 1 to 2 inches 

 Jong, pubescent, often densely so ; pedicels half an inch to 3 quarters iu length, pu- 

 bescent, with lance-linear ciliate-pubescent caducous bracts at base. Calyxsc- 

 merits lanceolate, pilose. Corolla bright purple ; Lobes lanceolate, often minutely 

 emarginate. Lepanthium palish purple, or flesh colored ; tube SOro< what eloaga« 

 ted ; segments oblong-ovate, obtuse, about as long as the anlheridiuia ; horn* long- 

 erthan the segments, slightly incurved. Follicles about 3 inches long, and half 

 an inch in diameter, ventricose, acuminate, pubescent. 



Mab. Moist low grounds, and swamps: frequent. Ft, July— Aug. Fr. Sept.— Or 



Obs. This varies much in the degree if pubescence, and likewise in the bright- 

 ness or intensity of its purple flowers; but I can perceive nothing tu authorize a 

 specific distinction. 



8. A. arjAimiFOLiA, Jure/. Stem simple ; leaves lanco-ovate, acumi- 

 nate, smooth, pctiolate, 4 larger ones in a verticil near the middle of the 

 .stem ; umbels terminal, erect, loose ; segments of the lepanthium (tag, 

 bidentate on the margin ; horns short, scarcely exserted. Beck, Bot. //. 

 336. Icon, Bart. Am. 2. tab. 43. 



Four-leaved Asclepias. 



Boot horizontal, oblong, yellowish. Stem 19 inches to 2 or 3 feet high, erect, Blee- 

 der, smooth, with a pubescent line. Leaves 2 to o inches long, and 1 to 2 inches 

 Yride, the upper and lower ones opposite, the middle ones cruciate, or in a verticil 

 of4, all thin and membranaceous paler beneath, somewhat pilose on the midrib 

 aerves and margin; petioles one fourth to half an inch long, slightly ciliate, and 

 wiig ed by the decarrence of the leavss. Umbels m*8ilv 3, sometimes Solitary ; 



