474 CONVOLVULACEjE. 



by abortion, pubescent. — SI. t. 98./ 2. — Convolvulus tomentosus, L. (Pharbitls, C&oit.). — 

 Sepals 5"'-8''', coroUa-tube 2"-ai" long. 



a. Leaves sericeouB or pubescent, chiefly beneath ; calyx pubescent. 



$. glabrata. Leaves glabrate or puberulous beneath ; calyx glabrous. — Besc. Fl, 2. 

 t. 137. 



Hab. Jamaica!, Macf., Al., WuUschl., March (a, 0), in canefields; [Panama I]. 



3. JACaUEMONTIA, C/iois. 



■' Character of Ipomoea, but stigmas 2, distinct, oval or ovoid. — ^Twining herbs ; cymes 

 long-peduncled ; calyx herbaceous; corolla campanulate-infundiiular ; anthers included; 

 ovary 2-ceUed, ^-ovulate ; no cwpuliform disk. 



46. J. tamuifolia, Gr, Pilose ; leaves subcordate-deltoid, repand-entire ; cymes many- 

 flowered, contracted^ bracieolate, peduncled; sepals linear-acuminate, hispid, exceeding or 

 equalling the corolla ; corolla blue ; stigmas ovoid ; capsule 4-valved : seeds minutely 

 scabrous.— i)a«. Elth. t. 318. /. 410.— Ipomcea, L. Convolvulus, Mey. .'—Sepals 6"'-4"', 

 corolla 4'" long. — Hae. Nevis; Trinidad!, Cr, ; [French islands!, ia fields; southern 

 United States ! to Brazil !] . 



4. CONVOLVULUS, L. 



Character of Ipomo!a,.h\A stigmas 2, diverging, filiform or clavate-oblong. — Corolla cam- 

 panulate-inficndihular ; anthers included ; ovaiy ^-celled, ^-ovulate. 



Sect. 1. Clatula. — Stigmas clavate-ollong. Ovary devoid of a cwpuliform disk. — 

 Stem herbaceous. 



* Cymes contracted, peduncled. 



47. O. pentantbus, Jacq. Twining, glabrous (or pubescent) ; leaves cordate-ovate, 

 pointed, entire or repand ; cymes contracted, bracteate, peduncled ; sepals herbaceous, half 

 as long as the corolla, hairy or glabresceut, devoid ef bristles, 3-2 exterior larger, ovate, 

 poiuted, 2-3 Interior ovate-lanceolate or lanceolate, acuminate ; corolla violet, stellate ; 

 capsule 4-valyed : seeds glabrous. — Jacq. Ic. Rar. t. 316. C. violaceVus, V. (Jacqnemontia, 

 Chois. : but the stigmas exactly as in the other Clavulce). — Hab. Jamaica!, Hist., Wils., 

 March, Wullschl., in hot, dry places ; Antigua !, Wullschl., Dominica !, Imr. ; Trinidad !, 

 Sch., Cr. ; [Cuba ! and Mexico I to Peru !]. 



** Peduncles \-flowered or terminated by an umbelliform cyme. 



48. C. ovalifolius, V. Creeping or diffuse, glabrous (or " pubescent ") ; leaves ovat 

 or oval-roundish, emarginate or blunt, entire ; peduncles \-few{-" 7 ")-Jlowered ; sepals 

 herbaceous, half as long as the corolla, glabrous, 3 exterior ovate, blunt, 2 interior ovate- 

 lanceolate, pointed; corolla small, blue; capsule 2-4-valved: seeds glabrescent, roughish, 

 margined. — Ipomoea, Chois. ?: but stigmas of the preceding. — Sepals 2'", corolla 4'" long; 

 seeds black. — Hab. Antigua!, Wullschl.; [trop. Africa]. 



*** Pedicels fascicled : peduncle short or none. 



49. C. micranthus, P,. S. Twining, pubescent ; leaves cordate-oblong, mucronate- 

 bluntish, repand or sinuate ; pedicels fascicled, as long as the short petiole ; sepals herbace- 

 ous, ovate-lanceolate, pointed, Utile exceeded by the corolla, subequal; corolla minute, 

 purple: limb 5-fid; capsule 4-valved: seeds glabrous, rugulose, margined.— Piam. M. 

 Burm. t. 94. /. 2.— Jacquemontia, Don. C. polycarpus, ^tt.— Sepals IJ"', corolla 2'" 

 long ; seeds yellowish-brown.— Hab. Jamaica !, Macf., Dist., March, WuUschl. ; S. Vin- 

 cent I, Qvild. ; Trinidad I, Lockh., Sch. ; [Cuba ! to Brazil I]. 



50. C. jamaiceusis, Jacq. Twining, glabrescent ; leaves lanceolate-linear (or oblong- 

 lanceolate), bluntly mucronate, entire, shortly petioled ; pedicels fascicled: peduncle usually 

 exceeding the petiole ; sepals small, membrauaceous,. one-fourth as long as the corolla, 

 pointed, 3 exterior ovate-lanceolate, 3 interior roundish ; corolla pale-purple or white : 

 limb 5-fid ; capsule 4-8-valved ; seeds minutely scabrous, margined with narrow wings.— 



