COXYOLVrLACEAE. 



349 



3. Jacquemontia cayensis Britton, sp. uov. 



Stem rather stout, somewhat woody, branched, trailing or ascending, 0.5- 

 2 5 m. long, finely pubescent or glabrate. Leaves fleshy, oblong to broadly 

 ovate, entire, 1-3 cm. long, obtuse, retuse or acute at the apex, narrowed or 

 rounded at the base, short-petioled, sparingly pubescent or glabrous ; peduncles 

 shorter than the leaves; cymes few-llowercd ; sepals ovate, apiculate, about 2 

 mm. long; corolla white or yellowish, 5-cleft, 8-12 mm. broad; capsule ovoid- 

 globose, about 5 mm. long. 



Coastal rocks, white-lands and sands, Abaco and Great Bahama to Grand Turk, 

 Tnaeua and Cav Sal :— Cuba ; Anegada. Type from Castle Island niiison 7/9i). 

 Refined °n BnJl. N. Y. Bot. Gard 4 : 121 to J. rcclinata House, of Florida, whicH 

 proves to be distinct. Fleshy Jacquemontia. 



4. Jacquemontia pentantha (Jacq.) G. Don, Gen. Syst. 4: 283. 1838. 



Convolvulus pentantlios Jacq. Coll. 4: 210. 1790. 



Jacquemontia violacea Choisy, Mem. Soc. Phys. Geneve 8: 61. 1838. 



Slender, glabrate or densely pubescent, 0.5-2 m. long, sometimes much 

 branched. Leaves ovate, 2-4 cm. long, slender-petioled, entire or slightly re- 

 pand, acute or acuminate at the apex, cordate at the base; peduncles slender, 

 mostly as long as the leaves or longer; cymes dense, several-llowered ; pedicels 

 usually shorter than the calyx; sepals ovate to lanceolate, acute or acuminate, 

 5-7 mm. long, the outer broader than the inner ; corolla blue, rarely white, 2-3 

 cm. broad; capsule subglobose, about as long as the &epals or a little shorter. 



Anguilla Isles : — Florida ; West Indies and continental tropical America. Blue 

 Jacquemontia. 



3. CALONY'cTION Choisy, Mem. Soc. Phys. Geneve 6: 441. 1833. 

 Long twining vines, with large, entire or 3-lobed leaves and large white 

 nocturnal flowers. Sepals herbaceous or subcoriaceous, the outer appendaged 

 or unappendaged. Corolla long-salverform with a nearly cylindric tube. 

 Stamens and style exserted. Styles united; stigmas globose. Fruit a dehis- 

 cent oval or oblong capsule. [Greek, night-beauty.] A few species, of tropical 

 regions. Type species: Calonyction speciosum Choisy. 



Outer sepals with infraterminal tail-like appendages ; stems more 

 or less aculeate. 



1. C. aculcatum. 



Outer sepals without appendages ; stems not aculeate. 2. C. Tuha. 



1. Calonyction aculeatum (L.) House, Bull. Torr. Club 31: 590. 1904. 



Convolvulus aculeatus L. Sp. PI. 155. 1753. 



Ipomoea lona-nox L. Sp. PI. ed. 2, 228. 1762. 



Glabrous, trailing or high-climbing, sometimes 20 m. long or longer, the 

 sap milky. Leaves orbicular-ovate, membranous, 5-15 cm. long, entire, repand 

 or sometimes 3-lobed, long-petioled, acuminate at the apex, deeply cordate at 

 the base; peduncles 1-several-flowered, stout, shorter than the leaves; sepals 

 about 1 cm. long, appressed, the outer subulate-appendaged ; corolla-tube 

 slender, 10-12 cm. long, the limb 8-10 cm. wide, each lobe with a broad green 

 median band terminating in a cusp ; capsule ovoid, pointed, about 2 cm. long ; 

 seeds glabrous or nearly so. 



New rrovidence and Acklin's Island: — Florida: Cuba to Porto Rico; Guade- 

 loupe ; Martinque ; Jamaica ; Trinidad ; Curagao ; Mexico to Panama. Moon-vine. 



