266 



CONVOLVULACE^:. XIV. IPOMCEA. 



leaves cordate, emarginate, fleshy, glandless, hardly an inch 

 long; peduncles 1-2-flowered; sepals equal. 1$.. S. Native 

 of New Holland, within the tropic. Convolvulus carnosus, 

 Spreng. syst. 1. p. 609. Flowers red. ? 

 Fleshy-\eave<\ Ipomcea. PI. prostrate. 



9 I. INCISA (R. Br. prod. p. 486.) plant prostrate, rather 

 villous ; leaves subcordate, dentately cut : upper ones hastate ; 

 peduncles 1-flowered, glabrous, longer than the leaves ; sepals 

 equal, lanceolate, acuminated. 1(1. S. Native of New Hol- 

 land, within the tropic, by the sea-side. Conv. incisus, Spreng. 

 syst. 1. p. 609. 



Cttt-leaved Ipomcea. PI. prostrate. 



10 I. CINERA'SCENS (R. Br. prod. p. 486.) plant creeping, 

 tomentose ; leaves nearly cordate, ovate-oblong, cut, rather 

 silky ; peduncles 1-2-flowered, villous, longer than the leaves ; 

 sepals glabrous, equal, oblong-lanceolate, acute. %. S. Na- 

 tive of New Holland, within the tropic. Conv. cinerascens, 

 Spreng. syst. 1. p. 609. 



Greyish Ipomcea. PI. creeping. 



111. RUGOSA (Choisy in mem. soc. phys. gen. 6. p. 446.) stems 

 creeping ; leaves cordately reniform, glabrous, obtuse, mucro- 

 nulate ; peduncles usually not equalling the leaves in length ; 

 sepals ovate : outer ones shortest, and rugosely plicate. 1. S. 

 Native of Mysore and Malabar. Convolvulus rugosus, Rottl. 

 in Willd. am. act. berol. 4. p. 196. Rcem. et Schultes, 4. p. 

 273. 303. and 790. Convol. flagelliformis, Wall. fl. ind. 2. p. 

 68. Conv. Beladambu, Spreng. syst. 1. p. 608. Ipomcea 

 repens, Lam. ill. no. 2134. Poir. diet. 6. p. 18. Ipomce'a 

 Beladamboe, Rcem. et Schultes, syst. 4. p. 233. Conv. mu- 

 ricatus, Russ. herb. Beladamboe, Rheed mal. 11. p. 119. 

 t. 58. Stems compressedly angular. Peduncles 3-8-flowered. 

 Seeds black, glabrous. Flowers large, pure white. 



Wrinkled Ipomcea. PI. creeping. 



12 I. RENIFORMIS (Choisy, I.e.) creeping, glabrous; leaves 

 reniform, with sinuately-toothed edges, emarginate ; pedicels 

 very short, 1-flowered, rarely 2-3-flowered ; sepals small, ovate- 

 roundish, ciliately jagged. 1J. . S. Native of the East Indies ; 

 as of Bengal, Nopalry, Coromandel, and Island of Timor. Con- 

 volvulus reniformis, Wall. fl. ind. 2. p. 67. Conv. Gang6ticus, 

 Lin. amcen. acad. 4. p. 306. no. 121. Evolvulus emarginatus, 

 Burm. fl. ind. 77. t. 30. f. 1. Evolvulus Gangeticus, Lin. spec. 

 p. 391. Stem angular at top. Leaves 3-6 lines long. Corolla 

 small, 5-cleft, yellow ; lobes acute. Seeds glabrous, reddish. 

 In some soils this species is found of a dark purple or rusty 

 colour. 



Kidney-shaped leaved Ipomcea. Fl. Oct. Clt. 1823. PI. 

 creeping. 



13 I. RCMiciFOLiA (Choisy, 1. c. p. 447.) stems diffuse, hairy; 

 leaves cordately reniform, obtuse at top, also emarginate, gla- 

 brous, with entire edges ; peduncles axillary, solitary, twin or 

 tern, 1-2-flowered ; sepals linear-lanceolate, hairy. () S. 

 Native of Travancore. Convolvulus hirtus, Wall. cat. no. 2254. 

 and probably of Lin. Stem diffusely creeping, beset with retro- 

 grade hairs, which rise from black glands. Leaves an inch long. 

 Corolla tubular, exceeding the calyx, glabrous. 



Dock-leaved Ipomcea. PI. creeping. 



14 I. INCU'RVA ; creeping; stems erect, sarmentose ; leaves 

 broad, linear, emarginate, mucronate, subhastate : lobes linear, 

 acute, curved in front ; peduncles 1-flowered ; sepals nearly 

 equal, lanceolate. "4 . S. Native of Guinea. Conv. incurvus, 

 Schum. pi. guin. p. 99. Stem nearly a span high, with filiform 

 creepers. Corolla white, larger than those of C. arvensis ; with a 

 dark purple bottom, and a usually mucronate 5-cleft limb; lobes 

 roundish. Capsule ovate-roundish, 4-valved, usually 1 -seeded. 

 Said to be related to /. emarginata, and /. acetoccefblia. 



Incurved-\ea.ved Ipomce a. PI. creeping. 



SECT. II. ORTHIPOMCEA (from opfloc, orthos, straight; and 

 Ipomce^a ; in reference to the species contained in this section 

 being erect or diffuse, but never twining.) 



* Plants herbaceous. 



15 I. TRIDENTA'TA (Roth. cat. 2. p. 19. Rcem. arch. 3. p. 

 38.) stems diffuse, filiform ; leaves sessile, oblong-linear, trun- 

 cate at apex, and often tridentate, but auriculately toothed at 

 the base ; peduncles 1-flowered, exceeding the leaves ; sepals 

 ovate, awned. Q. S. Native of the East Indies; at Paga- 

 mew, Irrawaddi, Ceylon, &c. Convolvulus tridentatus, Lin. 

 spec. ed. 1. p. 157. Wall. fl. ind. 2. p. 56. Conv. viscidus, 

 Roxb. hort. beng. p. 14. Evolvulus tridentatus, Lin. spec. ed. 



2. p. 392. Burin, ind. 77. t. 16. f. 3. Conv. I'ndicus, &c. 

 Plukn. aim. 117. t. 276. f. 5. Conv. minor, &c. Plukn. 

 mant. 117. t. 167. f. 5. Sendera-Claudi, Rheed. mal. 11. p. 

 133. t. 65. Stem herbaceous, angular. Leaves hardly 3-4 

 lines broad, and an inch long, quite glabrous. Peduncles downy. 

 Calyx whitish-yellow. Corollas small, yellow. 



Tridentate-\eaved Ipomcea. Fl. June, July. Clt. 1778. 

 PI. diffuse. 



16 I. FILICAU'LIS (Blum, bijdr. p. 721.) stems diffuse, fili- 

 form ; leaves linear, or linear-lanceolate, obtuse, mucronate, on 

 short petioles, somewhat hastately denticulated at the base ; 

 peduncles 1-2-flowered, length of the leaves ; sepals equal, 

 ovate, or oblong, acuminated, acute. Q. S. Native of the 

 East Indies ; as of Travancore, Ceylon, Penang, Rangoon, banks 

 of the Irawaddi, &c. ; also of China, Japan, New Holland, Java, 

 Timor; Africa, at the Cape of Good Hope, and in Guinea; and 

 of America, in various parts. Convolvulus filicauiis, Vahl. 

 symb. 3. p. 24. Schum. pi. guin. p. 92. Conv. hastatus, 

 Desr. in Lam. diet 3. p. 542. Conv. simplex, Pers. ench. 1. 

 p. 178. Conv. medium, Lour. coch. p. 106. edit. Willd. 1. p. 

 130. Ait. hort. kew. 1. p. 328. Wall. fl. ind. 2. p. 56. but not of 

 Lin. Conv. filiformis, Thunb. fl. cap. 2. p. 16. Conv. denti- 

 culatus, Desr. in Lam. diet. 3. p. 540. Spreng. syst. 1. p. 603. 

 Conv. angustifblius, Desr. in Lam. diet. 3. p 547. Vahl. symb. 



3. p. 25. Conv. Japonicus, Thunb. jap. p. 85. ? Vahl. symb. 3. 

 p. 25. Ipomce' a denticulata, R. Br. prod. 1. p. 485. Ker. 

 bot. reg. 317. I. angustifolia, Jacq. coll. 2. p. 367. icon. rar. 

 t. 317. I. Japonica, Rcem. et Schultes, syst. 4. p. 245.? Pers. 

 ench. 1. p. 184. Tala-Neli, Rheed. mal. 11. p. 113. t. 55. 

 Conv. linifolius, Wall. cat. no. 1389. Stem branched, angular. 

 Leaves sometimes 2-3 lines broad, sometimes very narrow; hind 

 lobes generally toothed. Pedicels clavate. Corolla pale yellow, 

 or yellow. Seeds glabrous. 



Var. /3, (Schum. pi. guin. p. 92.) leaves narrow-linear ; teeth 

 of auricles subsetaceous. Q. S. Native of Guinea. 



Thread-stemmed Ipomcea. Fl. July, Aug. Clt. 1778. PI. 

 1 foot, diffuse. 



17 I. CLAPPERTONI (R. Br. in Denh. append, p. 35.) gla- 

 brous, creeping ; leaves sagittate, having the hind lobes entire, 

 and acute; peduncles 1-flowered. If.. F. Native of Bornou. 



Clapperloris Ipomcea. PI. creeping. 



18 I. BIDENTA TA ; glabrous, erectish ; leaves linear- hastate, 

 sessile, having the hind lobes bidentate ; peduncles 1-flowered ; 

 stem furrowed. "If.. S. Native of Guinea, in fields ; common 

 among grass. Stem furrowed. Flowers small, yellow. Nearly 

 allied to I. filicauiis, and probably only a variety of it. 



Bidentate-\eaved. Ipomcea. PI. \ foot, nearly erect. 



19 I. ATURE'NSIS; branched, glabrous, twiggy ; leaves scale- 

 formed ; peduncles 2-flowered, spicate ; sepals lanceolate, ob- 



