CONVOLVULACEjE. 473 



Sect. 11. Pharbitis, Chois. — Sepals herbaceous, acuminate. Corolla campanulale- 

 infundibular. Anthers included. Ovary ^-ovulate, 3-4-2-cel/ed, supported by a cupu- 

 liform or campanulate disk. Capsule splitting into valves. 



* Disk cupuliform, one-half to one-third as long as the ovary. 



39. I. cissoides, Gr. Pilose; leaves 5-3-partite : segments elliptical, mucronate, 

 dentate, petiolulate ; peduncles 2-5 -flowered: pedicels short; sepals subulate, spreading, 

 exceeding half the corolla, hispid below, glandular above : ovate base one-half to one-third as 

 long as the linear appendage ; corolla white, campanulate at the base ; disk cnpuliform ; 

 capsule ^-celled: seeds 4, puberulous — Batatas, Chois. Convolvulus, V. — Habit oiSchizips, 

 but sepals green, spreading, as in /. Nil ; sepals 8"'-10"', corolla 1" long. — IIab. Trinidad \, 

 Lockh., on dry banks ; [Cuba to Brazil !]. 



40. I. Mil, Rth. Pilose; leaves cordate-3-lobed .- lobes ovate, pointed, entire the 

 middle usually contracted at the base ; peduncles 1-3-flowered ; sepals filiform above a 

 lanceolate base, spreading, ascending half the corolla-tube, densely pilose below : base about 

 oue-third as long as the narrow part ; corolla blue above, (or purple), white below, gradually 

 enlarged from the cylindrical base ; disk cupuliform ; capsule 'it-celled : seeds 6 or fewer by 

 abortion, glabrescent. — Jacq. Ic. Bar. t. 36. — Convolvulus, L. (ex Dill.f. 92). I. hederacea 

 Jacq., R. Br. Pharbitis Nil, (exclus. synon.) and hederacea, Chois. — Sepals 8"'-10"' 

 corolla-tube 1" long. — Hab. Jamaica !, Macf ; [United States ! to Brazil ! ; trop. Africa !, 

 Asia !, and Australia !]. 



41. I. purpurea, Lam. Branches pilose or glabrescent; leaves cordate-roundish, 

 pointleted, entire or repand, glabrous ; cymes few-flowered, contracted-umbelliform ; sepals 

 lanceolate, adpressed, hispid below, glabrous above, exceeding half the corolla-tube; corolla 

 violet or purple, white below, (or white), gradually enlarged from the base ; disk cupnliform ; 

 capsule 2(-" 3 ")-celled: seeds 4 or fewer by abortion, minutely puberulous. — Bill. Blth. 

 t. 84./. 97. Bot. Mag. t. 1682.— -Convolvulus, L. Pharbitis hispida, Chois. I. glandu- 

 lifera, Macf! — Sepals G"'-8'", corolla-tube 1" long; flowers nocturnal (Macf.). — Hab. 

 Jamaica !, Macf., March ; [United States ! ; Cuba ! to Venezuela !]. 



42. I. villosa, R. P. Iloary-tomentose or sericeous ; leaves cordate-S-lobed : lobes 

 entire, lateral roundish, middle acuminate ; peduncles 1-3-flowered ; sepals ovate-oblong, 

 adpressed, villous, scarcely half as long as the corolla-tube ; corolla dark-purple, variegated, 

 gradually enlarged from the base ; disk cupuliform ; ovary 3-celled, 6-ovulatc. — R. P. Fl. 

 Peruv. I. 121. B. — Sepals 5'", corolla-tube 1" long. — Hab. Trinidad !, Pd., Cr., in savan- 

 nahs along the eastern coast ; [Peru]. 



43. I. acuminata, R. S. (non R. P.). Branches pilose or glabrescent ; leaves cordale- 

 3-lobed: lobes deltoid-ovate-entire; peduncles few-1 -flowered ; sepals long, lanceolate- 

 linear, adpressed, puberulous or glabrescent, often hispid-ciliate at the base, half as long as 

 the corolla-tube ; corolla blue above, gradually enlarged above the cylindrical base ; disk 

 cupuliform, half as long as the ovary; ovary 3-celled, 6-ovulate. — Bot. Reg. t. 39. — Con- 

 volvulus, V. I. mutabilis, Lindl. (Pharbitis, Chois.). — Sepals 1", corolla-tube 2" long. — 

 Hab. Jamaica !, March ; [Cuba I to Brazil]. 



** Disk campanulate, including the ovary. 



44. I. cathartica, Poir. Glabrous ; leaves cordate-3 -lobed (or cordate-roundish) : 

 lobes entire, repand, pointed, lateral ovate, middle oblong or elliptical-oblong ; peduncles 1-2- 

 flowered ; sepals ovate-lanceolate, long-acuminate, suberect, glabrous, half as long as the 

 corolla-tube ; corolla blue or crimson, gradually enlarged from the base ; disk campanulate, 

 including the 3-celled, 6-ovulate ovary. — Bot. Reg. t. 999. — Pharbitis, Chois. Convolvulus 

 pudibundus, Lindl. C. portoricensis, Spreng. — Sepals 8"'-10"', corolla-tube 16"'-20"' long. 

 Hab. Bahamas !, Swains. ; Jamaica; S. Vincent; [Cuba and Mexico to Brazil !]. 



45. I. jamaicensis, Bon. Sericeous-pubescent or glabrescent ; leaves cordate-3-lobed 

 or cordate-roundish, pointleted : lobes ovate, entire ; peduncles 1-6-flowered : pedicels short ;. 

 sepals ovate-lanceolate, suberect, pubescent or glabrous, devoid of bristles, one-fourth as 

 long as the corolla-tube ; corolla purple : tube cylindrical below, gradually and slightly 

 enlarged above; disk campanulate, including the ovary; capsule 3-celled: seeds 6 or fewer 



