472 CONVOLVULACE^E. 



Sect. 8. Exogonium, Chois. — Sepals membranaceous, at length leathery. Corolla tubular- 

 salvershaped : tube cylindrical. Anthers exserted during the expansion of the limb. 

 Ovary ^-ovulate, 2-celled or 4-celled at the summit ■. disk short, annular. Capsule 

 4t(—§)-valved. 



33. I. repanda, Jacq. Glabrous ; leaves cordate-acuminate, entire or repand ; cymes 

 usually many-flowered ; sepals ovate-roundish, rounded, coloured, oue-3ixth to one-fonrth 

 as long as the corolla, 2 exterior rather shorter ; corolla crimson : tube about 4 times as long 

 as the 5 -partite limb, lobes oblong-lanceolate ; capsule 2-celled below the 4-celled summit .- 

 seeds fimbriate along the margin, glabrous on the faces. — Jacq. Amer. Pict. t. 27- — Exo- 

 gonium, Chois.— Root " with small tubers ;" sepals 3'", corolla-tube li"— 1" long. — Hab. 

 Antigua!, WullschL, Dominica!, Imr. ; [Cuba to French islands!]. 



34. I. filiformis, Jacq. Glabrous ; leaves ovate-oblong, slightly cordate at the base, 

 mucronate-bluntish ; cymes lax ; sepals ovate-roundish, with a bluntish point, subequal, 

 one-eighth to one-sixth as long as the corolla-tube ; corolla pale-purple : tube about 4 times 

 as long as the 5-fid limb : lobes ovate ; capsule 2-celled: seeds glabrous, narrowly 3-winged. 

 — Jacq. Amer. Pict. t. 26.— Exogonium, Chois.— Sepals H'", corolla-tube 9"'-12'" long.— 

 Hab. Antigua !, Nichols., WullschL, S. "Vincent !, Guild.; [French islands !] . 



35. I. arenaria, Steud. Glabrous ; leaves subcordate-deltoid or deeply 3-lobed : lobes 

 lanceolate-obloug ; peduncles l-2(-" many ")-flowered ; sepals orbicular or ovate-rounded, 

 subequal, one-third to one-fourth as long as the corolla-tube ; corolla crimson : tube 2-3 

 times as long as the repand limb ; ovary 2-celled below the summit. — Chois. in Mem. 

 Geneve, 8. t. 1.— Sepals 3'", whole corolla, when closed, \\"-\" long.— Hab. Bahamas !, 

 Swains.; [Portorico to S. Thomas !]. 



Sect. 9. Quamoclit, T. — Sepals membranaceous. Corolla tuhdar-salvershaped : tube 

 clavate. Anthers exserted. Ovary 4-celled, 4-ovulate .- disk annular. Capsule 2-4- 

 valved. 



36. I. Quamoclit, L. Glabrous; leaves subsessile, pinnatipartite : segments filiform, 

 pointed, entire or the inferior 2-fid ; peduncles 1-2-flowered ; sepals ovate, blunt, mucronate, 

 one-fourth as long as the corolla-tube, 2 exterior shorter ; corolla crimson (or white) : tube 

 3-4 times as long as the 5-lobed limb ; capsule 4-celled : seeds compressed, glabrous. — 

 Besc. Fl. 6. t. 415. — Quamoclit vulgaris, Chois. — Sepals 3'", corolla-tube 1" long. — Hab. 

 Jamaica ; S. Kitts !, Antigua !, WullschL, S. Vincent !, fiuild. ; [Portorico ! to Brazil I ; 

 Madeira! ; East Indies !]. 



Sect. 10. Mina, Llav. — Sepals membranaceous, mostly terminated by a herbaceous, filiform 

 appendage. Corolla tubular-salvershaped : tube clavate. Anthers exserted. Ovary 

 4-celled, 4-ovulate, supported by a cupuliform disk. Capsule splitting into irregular 

 valves. 



37. I. coccinea, L. Glabrescent ; leaves cordate-deltoid, repand, or sinuate-dentate 

 below, (rarely 3-lobed) ; cymes lax ; sepals subequal, about one-sixth as long as the corolla- 

 tube ; appendage as long as the oval-subtruncate lamina ; corolla scarlet, variegated with 

 orange, (rarely wholly orange) : tube thrice as long as the 5-lobed limb ; capsule 4-celled : 

 seeds 3-gonal, rugose, puberulous. — Bot. Mag. t. 221. — Quamoclit, Mch. I. luteola, Jacq. 

 (Ic. Ear. t. 35) : the orange-flowered form. — Sepals (the appendage included) 3"'-2£"' long. 



o. Corolla-tube straightish, 12"'-15"' long. 

 0. curviflora. Corolla-tube curved, 18"'-15'" long. 



HiB. Jamaica !, March (j8) ; Antigua!, WullschL (a) ; naturalized in Trinidad !, Cr., (a) ; 

 '[Virginia! to Peru ! j East Indies ! to the Cape !]. 



38. I. hedersefolia, L. Glabrous ; leaves cordate-%-lobed : lobes deltoid, subentire ; 

 cymes lax ; sepals subequal, one-sixth as long as the corolla-tube : appendage as long as the 

 oval-subtruncate lamina ; corolla purple : tube curved, 4 times as loug as the repand limb ; 

 capsule 4-celled : seeds 3-gonal, rugose, puberulous. — Bot. Mag. 1. 1769. — Quamoclit, Chois. 

 I. sanguinea, V. — Perhaps a variety of the preceding ; sepals 2'", corolla-tube 12" '-18'" long. 

 — Hab. Jamaica 1, Dist. ; [Mexico ! to Brazil !]. 



