3G0 CONVOLVULACK.E. 



/3. rubra. (Convolvulus Jalapa, Lam. ; — B. M. 38, t. 1572. — C. Ja- 

 lapa, /3. rosea, Ker. B. Reg. 8, t. 521.) B Mexico, about Vera 

 Cruz. Fl. very large, deep rose- coloured, R. and C. S. This 

 variety, has been introduced into Bengal by Lord Auckland. It is 

 not the true Jalap Plant, nor does it, according to Dr. O'Shaugh- 

 nessy's chemical analysis, contain any resin. The above-mentioned 

 white-flowered variety, a. the Jalap of N. America, (Convolvulus 

 macrorrhizos, Roxb. H. B. p. 14,) was introduced into H. C. G. in 

 1801, but had not flowered up to 1814. 



The true Jalap of the shops is the product of /. Jalapa, Schiede and 

 Deppe. (G. Don's Mill. diet. 4, p. 271 ; — /. Purga, Wenderoth. — 

 Convolvulus Jalapa, Houst. MSS. in Mill. diet. ed. 8, No. 31 ; — Linn. 

 Mant. 1, jo. 43 ; not of others. — Ipomoea Schiedeana, Zucc.) It is a 

 native of Mexico, in the woods of Chiconquiaco, from whence it is 

 brought to Vera Cruz by the inhabitants of Jalapa or Xalapa. The 

 plant is called Purga and Laschachne in Mexico, it abounds also on 

 the eastern slope of the Cordillera of Anahuac, in the same latitude 

 with the Vanilla aromatica, Swz, and Smilax Sarsaparilla, L., and in 

 its wild state delighting in a dry sandy soil. 



31. trichophora, Ell. (fl. car. 2, p. 260; — G. Don's Mill. diet. A, p. 278. 

 — I. Carolina, Pursh. not L. — Convolvulus carolinus, Michx. jl. amer. 

 bor. 1, p. 139 ; — Desrouss. in Lam. diet. 3, p. 563 ; — Roxb. H. B.p. 

 14. — C. trichophorus, Spreng.) © Hedges in Carolina. Fl. large, 

 pale purple, and fr. Feb. and March. 



32. coptica, Roth. (G. Don's Mill. diet. 4, p. 278 ;— /. Grah. Cat. B, pi. 

 p. 132. — I. Brunetii, Perr. cat. MSS. No. 150. — Convolvulus copticus, 

 L. Mant. p. 559 ■,—Roxb. fl. ind. 1, p. 477 ; ed. Carey, 2, p. 62. — 

 C. stipulatus, Desrouss. in Lam. diet. 3, p. 546.) © Senegal. Coro- 

 mandel. Open glades about Kandalla. Fl. small, white, and fr. C. S. 



33. heptaphylla (I. pulchella. Roth. ; nov. spec. p. 115 ; — Wight, icon. 1, 

 t. 156 ; — G. Don's Mill. diet. 4, p. 279, excl. Convolvulus dasysper- 

 mus, Spreng. and C. digitatus, Roxb. ; not I. pulchella, G. Don. 1. c. 

 p. 276. — Convolvulus bellus, Spreng. — C. heptaphyllus, Roxb. H. JB. 

 (1814,) p. 14 ; fl. ind. 1, p. 480 ; ed. Carey, 2, p. 66.) "2^. Pagamew. 

 Segaen. Fl. small, pale rose-coloured, with a purple eye, R. and C. 

 S. ; fr. C. S. 



34. tuberculata, Rom. and Sch. (G. Don's Mill. diet. 4, p, 279. — I. stipu- 

 lata, Jacq. schonbr. 2, t. 199. — I. frutescens, Desf. cat, par. p. 74. — 

 I. tuberculosa, Desf. cat. par. p. 74. — Convolvulus tuberculatus, 

 Desrouss. in Lam. diet. 3, p. 545 ; — H. B. and. Kth. nov. gen. 3, p. 

 108.— C. digitatus, Roxb. fl. ind. 1, p. 479 ; ed. Carey, 2, p. 65.) %. 

 China. Sandwich-Islands. S. America. Peninsula of India. Fl. very 

 large, white-lilac-purple, nearly the whole year ; fr. H. S. 



Zb.pedata, (1. dasysperma, Jacq. eel. 1, (1816,) t. 89; — Q. Don's Mill, 

 diet. 4, p. 279. — I. tuberculata, Ker. i, /. 8C, anno. 1815, not Rom. 



