140 



ASCLEPIADEJE. XLI. ASCLEPIAS. 



roots have been sent to England as Ipecacuanha. The juice of 

 the plant, made into a syrup, is said to be a powerful anthelmin- 

 tic ; it is given to children in the West Indies, for that pur- 

 pose, from a tea to table-spoonful. The juice, and pounded 

 plant, is said to be an excellent styptic. The root, dried and re- 

 duced to powder, is frequently used by the negroes as an emetic, 

 and hence its name of Wild or Bastard Ipecacuanha, (f. 18.) 



Far. /3, albiflbra ; flowers white. 



Far. y, ramosa; stem branched at top, divaricated. 



N.B. What is A. Curassdvica, Lour. coch. 170, of which he 

 says, that the stems are simple and twining, the leaves opposite ; 

 the flowers pale, and disposed in lateral, erect umbels ; the fol- 

 licles ventricose and conical ; the seeds ovate, compressed, 

 curved, and comose. A native near Canton, in China. 



Curassoa Swallow-wort, or Bastard Ipecacuanha. Fl. Ju. 

 Sept. Clt. 1692. Shrub 1 to 3 feet. 



9 A. NivEA (Lin. spec. 313.) stems simple; leaves ovate- 

 lanceolate, smoothish ; umbels erect, terminal, solitary. 1J. . H. 

 Native from Virginia to Carolina, on the banks of rivers, in 

 sandy and gravelly soil. Sims, bot. mag. 1187. Dill. elth. 33. 

 t. 29. f. 32. Flowers white, ex Pursh. Corolla green, pur- 

 plish outside, with white nectaries, ex Lin. Stem nodose, pu- 

 berulous. Leaves tomentose beneath, ex Sims, 1. c. Very like 

 A. Curassdvica, 



/Snowy-flowered Swallow-wort. Fl. July, Aug. Clt. 1730. 

 PL 1 to 3 feet. 



10 A. VIRGA'TA (Balb. in cat. taur. 1813. p. 14.) stems erect, 

 simple ; leaves linear-lanceolate, glabrous ; umbels erect, late- 

 ral, solitary : and terminal, twin. % . H. Native of America. 

 Very like A. nivea, but differs in the colour of the flowers. 

 Flowers white. 



Twiggy Swallow-wort. Fl. Jul. Aug. Clt. 1820. PI. 2 ft. 



11 A. INCARNA V TA (Lin. spec. 314.) stem erect, branched and 

 tomentose at top ; leaves lanceolate, rather woolly on both sur- 

 faces ; umbels numerous, usually twin ; horns of corona exserted. 

 Tf.. H. Native from Canada to Virginia, in swamps, and on 

 river banks, common. Michx. fl. bor. amer. 1. p. 115. 

 Pursh, 1. p. 181. Jacq. hort. vind. t. 107. Ker. bot. reg. 250. 

 Corn. can. 9. t. 93. Flowers red, or purplish. 



Flesh-coloured-flowered Swallow-wort. Fl. July, Aug. Clt. 

 1710. PI. 2 feet. 



12 A. PI/LCHRA (Ehrh. ex Willd. enum. p. 278.) stem divided 

 at top ; leaves lanceolate ; umbels erect, twin ; horns of corona 

 exserted. 7{.H. Native of North America. A. incarnata, /3, 

 Willd. spec. 1. p. 1267. Pursh. fl. amer. sept. 1. p. 181. 

 Flowers red, or purple. This plant is said, by Pursh, to be 

 more hairy than A. incarnata, but in every other respect no 

 wise different. Sometimes the leaves are quite glabrous, and 

 only downy in those on the upper part of the stem, as in it. But 

 Willdenow says it is a very distinct species, and remains so in 

 cultivation ; the leaves are shorter, and a little broader, 

 downy beneath, as well as the top of the stem and branches. 



Fair Swallow-wort. Fl. July, Aug. Clt. 1710. PI. 2 feet. 



13 A. CITRIFOLIA (Jacq. coll. 2. p. 290. icon. rar. t. 343.) 

 stems erect, simple, rather hairy ; leaves ovate-lanceolate, acute, 

 repandly undulated, glaucous, and minutely hairy beneath, firm ; 

 umbels terminal and lateral, solitary, hemispherical, y.. H. 

 Native of America. Root thick, fleshy. Leaves 4 inches long. 

 Flowers white, size and form of those of A. Curassdvica. 



Orange-leaved Swallow-wort. Fl. July, Aug. Clt. 1818. 

 PI. 1 foot. 



14 A. AMO-^NA (Lin. spec. 313.) stems simple, with 2 rows of 

 down ; leaves almost sessile, oblong-oval, downy beneath ; um- 

 bels terminal, and are, as well as the foliola of corona, erect ; 

 appendages of corona exserted, red. 1. H. Native from New 

 England to Virginia, in wet meadows, on the edges of woods 



and ditches. Michx. fl. bor. amer. 1. p. 118. Pursh. 1. p. 

 181. A. compressa, Monch. Dill. elth. t. 27. f. 30. Flowers 

 beautiful, purple. Habit of A. Syrlaca. Leaves white beneath, 

 large, with a purple middle nerve, ex Dill. 



Pleasant Swallow-wort. Fl. July, Aug. Clt. 1732. PI. 



2 to 3 feet. 



15 A. PURPURA'SCENS (Lin. spec. 313.) stem simple, rather 

 hairy at top ; leaves ovate, villous beneath ; umbels erect ; 

 foliola of corona resupinate. I/ . H. Native of Virginia and 

 Carolina, in shady swamps. Dill. elth. t. 28. f. 31. Flowers 

 purple. Habit of A. Syrlaca. Stem brownish green at bottom. 

 Leaves large, with a purplish middle nerve. Petals herbaceous, 

 striped with purple at the base, ex Dill. 



Purplish-RoviereH Swallow-wort. Fl. July, Aug. Clt. 1732. 

 PI. 2 to 3 feet. 



16 A. VARIEGA'TA (Lin. spec. 312.) stem simple, erect; leaves 

 ovate, petiolate, wrinkled, naked ; umbels almost sessile ; pedi- 

 cels tomentose. y. . H. Native from New York to Carolina, 

 on dry, sunny hills, on the borders of woods. Sims, bot. mug. 

 1182. Pluk. aim. t. 77. f. 1. Flowers in dense umbels, very 

 handsome ; petals and foliola of corona white ; fructification 

 red. A. hybrida, Mich. fl. bor. amer. 1. p. 115. "Stem 

 simple, rather tomentose ; leaves petiolate, oval, minutely pube- 

 rulous ; umbels leafless, terminal." Michx. 1. c. Stems varie- 

 gated with purple. 



Variegated-flowered Swallow-wort. Fl. July, Aug. Clt. 

 1597. PI. 3 to 4 feet. 



17 A. OBTUSIFOLIA (Michx. fl. bor. amer. 1. p. 115.) leaves 

 stem-clasping, oblong-roundish, obtuse, waved ; umbels termi- 

 nal, solitary, on long peduncles, many-flowered, glabrous ; horns 

 or appendages of corona exserted. 7. H. Native of from New 

 Jersey to Carolina, on the banks of rivers ; in sandy, barren 

 soils, along the Platte, on the Missouri, ex Torrey, in ann. lye. 

 new york, 2. p. 217. A. purpurascens, Walt. fl. car. p. 105. 

 Flowers large, purple. Perhaps the same plant as Gonolobus 

 obtusifolius. 



Far. /3, latifolia (Torrey, in ann. lye. new york. 2. p. 217.) 

 leaves broad-obovate, obtuse, ending in a short mucrone, cordate 

 at the base, glabrous on both surfaces, with flat edges ; umbels 

 almost sessile, axillary ; leaflets of corona cucullate, about equal 

 in length to the gynostegiuvn, bidentate ; horns of corona ex- 

 serted. y. . H. Native of North America, on the banks of the 

 Canadian river. Leaves 4 inches long, and 3 broad. Flowers 

 rather smaller than in the species. Calycine segments lanceo- 

 late, acute. Corolla reflexed, pale greenish purple. Perhaps a 

 proper species. 



Blunt-leaved Swallow-wort. Fl. June. Clt. 1820. PI. 2 to 



3 feet. 



18 A. MELLIODORA (St. Hil. ex Spreng. syst. addenda, p. 110.) 

 stem simple, erect ; leaves petiolate, linear, elongated, acute, 

 downy beneath ; umbels lateral, many-flowered. % . F. Native 

 of Brazil, on the banks of the Rio Grande. 



Honey-scented Swallow-wort. PI. 



19 A. ACUMINA'TA (Pursh, fl. amer. sept. 1. p. 182.) stems 

 erect, glabrous, simple ; leaves ovate, sub-cordate, acuminated, 

 on short petioles : superior ones sessile ; umbels lateral, soli- 

 tary, erect. I/ . H. Native from New Jersey to Florida, in deep 

 cedar swamps, and on the banks of rivers. A. cordata, Walt. fl. 

 car. p. 105. A. periplocsefolia, Nutt. gen. amer. 1. p. 106. 

 Leaves glabrous, but rough on the edges, acute. Flowers red 

 and white. Roots very large, resembling those of A. tuberbsa. 

 Horns of corona inclosed. 



Acuminated- leaved Swallow-wort. Fl. July. Clt. 1826. 

 PI. 2 feet. 



20 A. LAURIFOLIA (Michx. fl. bor. amer. 1. p. 117.) stems 

 erect, glabrous ; leaves almost sessile, oval-lanceolate, gradually 



