420 ASCLEPIADE^. 



t. 231.— Leaves 2'M." long; corolla whitish, \\" diam. . tube equalling the linear calyx- 

 segments; foUicles 3" long. — Hab. Jamaica!, Macf.,Pd., ^a<er«, S. George's Gap ; [Cubal 

 and Mexico 1 to Ecuador ! and Brazil]. 



9*. CALOTROPIS, B. Br. 



Calyx 5 -partite. Corolla 5-partite, valrate: crown 5-leaTed, vertically inserted into the 

 column : leaflets complicate,, with an ascending spur on the back. Follinaria compressed, 

 spathulate, diverging-pendulous : tail curved, horizontal at the base, inserted into the base 

 of the small gland. Stigma depressed. Follicles ventricose, smooth : seeds comose. — 

 Erect, glabrous shrubs ; leaves ^roa^; coYyiribs peduncled : flowers for^i?. 



16*. O. procera, U. Br. Leaves obovate-oblong or obovate-roundish, cordate at the 

 subsessile base ; corolla spreading ; crown-leaflets incurved, as long as the piismatical 

 column. — Jacg. Amer. Pict. t. 88. — Asclepias gigantea, Jacq. — 6' high ; leaves 6"-8" long ; 

 corolla white, red-tinged within, 1" diam. — Hab. Naturalized in Jamaica {.Jacq.), common 

 in savannahs, Kingston ; Antigua I, Nichols., Wullschl. ; [trop. Africa 1 to Egypt !, Afghani- 

 stan ! and East Indies ! ; introduced into trop. America !]. 



10. GONOLOBUS, Mich. 



Calyx 5-partite. Corolla rotate, 5-partite or 5-lobed, contorted: crown annular, con- 

 necting the column and the corolla-throat. Anthers transversely dehiscent : pollinaria 

 obovate, tailed, horizontal. Stigma depressed. Follicles ventricose ; seeds comose. — Climbers ; 

 flowers corymbose^ often few^ rarely single. 



17. G. rostratus, R. Br. Pilose with recurved down; leaves cordate mDm •asnovi 

 ainus, ovate-oblong above the base, pointleted ; peduncles 4-5-flowered : pedicels slender ; 

 calyx slightly hairy, one-third to a quarter as long as the corolla: segments ovate, pointed ; 

 corolla 5-partite, slightly hairy : segments lanceolate-linear, acuminate. — Vahl, Ic. t. 7. — 

 Cynanchum, V. —Leaves 4"-2V long ; coroUa 1" diam. — Hab. Trinidad !, Cr., La VentiUa ; 

 [Venezuela]. 



18. G. martinicensis, Bees. Branches pilose or glabrescent ; leaves cordate with 

 an open sinus, ovate-oblong above the base, pointleted ; corymbs umbelliform, peduncled : 

 pedicels slender ; ca/y« glabrescent, one-third to one-half as long as the corolla: segments 

 lanceolate, acuminate I coro/Za 5-partite, glabrous: segments lanceolate-acuminate : crown 

 short, glabrous, undulate-subentire.^ — Leaves 4" long ; corolla 10"' diam., beaked in the bud, 

 greenish. — Hab. Dominica !,/)»)•. ; [Martinique]. 



19. Q. stellat^s, Gr. {n. sp). Glabrous; leaves elliptical or lanceolate-elliptical, 

 pointed at both ends ; peduncles few-1-fiowered, nearly as long as the slender petiole; calyx 

 one-third as longas the corolla, spreading from the beaked-conical bud ; segments lanceolate, 

 acuminate; coroSa 5 -pai'tite : segments lanceolate- acuminate ; crown ureeolate, glabrous : 

 margin lobed. — Stem filiform, climbing; leaves 24"-li", petiole 12"'-6"' long; peduncle 

 much shorter than the pedicels ; corolla 20"'-16"' diam. : segments 2'" broad at the base, 

 somewhat bluutish at the point, greenish, slightly papillose near the margin within. — Hab. 

 Jamaica I, Pd., Manchester, rare, near Knoekpatrick. 



20. G. pubescens, Gr. {n. sp.). Branches densely hispidulous-pnbescent with re- 

 curved down ; leaves small, ovate-oblong, raucronate, rounded or iluniish at the base, 

 densely pubescent; peduncles l(-2)-flowered, short, nearly as long as the petiole; bud sub- 

 globose ; calyx half as long as the corolla, hispidulous ; segments lanceolate, bluntish ; 

 corolla deeply 5-lobed, glabrous : lobes ovate-deltoid, bluntish, internally papillose near the 

 point ; crown creuulate-lobed. — Stem filiform, climbing ; leaves 8"'-18"', petiole 2"'-3"' 

 long ; corolla marmorated with veins, 2"'-3"' diam. : crown fleshy, insei-ted into the base of 

 the short column, nearly distinct from the corolla-tube ; stigma flat, 5-corniculate at the 

 margin. — Hab. Jamaica I, Macf. 



21. G. rhamnifolius, Gr. {n. sp.). Branches pubernlous, glabrescent ; leaves ovate- 

 oblong, cuspidate or mucronate, rounded at the base, glabrous ; corymbs umbelliform, sub- 

 sessile, as long as the petiole ; bud ovate-subglobose ; calyx one-third as long as ihecorolla, 

 puberulous : segments ovate-oblong, blunt ; corolla deeply 6-lobed, glabrous : segments 



