422 GENTIANE.E. 



Cynanchum hirsutum, V. sec. Decs. — Habit of Fischeria muUiflara, but peduncles scarcely 

 exceeding the petiole, 2-3-flowered; corolla 1" diam. — Hab. Trinidad (V.) ; [Mexico, 

 Yucatan]. 



14. MARSDENIA, R. Br. 



Calyx 5 -leaved or sub- 5 -partite. Corolla 5-lobed, dextrorsely contorted: crown 5- 

 leaved, inserted below the anthers : leaflets devoid of an inner appendage, often adnate below. 

 Pollinaria oblong or obovoid, erect : tail horizontal, inserted into the base of the gland. 

 Stigma entire, depressed or conical. Follicles smooth: seeds comose. — Trailing shrubs or 

 climbers ; flowers cymose. 



27. M. clausa, R. Br. Shrubby, twining above; branches with 2 puberulous lines; 

 leaves lanceolate-oblong, lanceolate or spathulate, mucronulate, tapering or bluntish at the 

 base, glabrous ; cymes peduncled : peduncle nearly as long as the petiole ; sepals orbicular, 

 filiate ; corolla shortly infundibular : lobes oval, twice as long as the tube, bearded above 

 the throat; crown-leaflets roundish, fleshy; stigma flat. — M. ami. is, Rich. ! — Leaves 2"-l£", 

 corolla 2'" lomr. — Hab. Jamaica !, Mac/., Wullschl., Manchester, Lititz savannah, trailing on 

 walls; [Cuba!]. 



28. M. maculata, Hook. ! Shrubby, twining, glabrous ; leaves ovate or broadly ovate- 

 oblong, minutely cordate at the base ; cymes umbelliform, subsessile ; sepals roundish, 

 ciliate ; corolla rotate-infundibular : lobes oval-oblong, blunt, ciliate, internally glabrous, 

 thrice as long as the tube ; crown-leaflets lanceolate ; stigma convex-conical. — Leaves 8"-4", 

 corolla 3"' long. — Hab. Trinidad !, Pd., in the mountains of S. Anns ; [Panama !, New 

 Granada !, Venezuela !]. 



CXI. GENTIANE^. 



Stamens inserted into the sympetalous, dextrorsely contorted (rarely induplicative) corolla. 

 Ovary superior, paracarpons: carpophylls 2, mostly many- ovulate. Embryo cylindrical, in 

 fleshy albumen. — Leaves mostly opposite and entire, exslipulate, glabrous, often palmati- 

 nerved and sheathing at the base ; fruit mostly a septicide capsule. 



A bitter principle is universal in this Order : hence several in the West Indies are used as 

 tonics, e.g. Eustoma, Schultesia, Coutoubea. 



1. EUSTOMA, Don. 



Calyx 5 (-6) -partite. Corolla infundibular-rotate, marcescent. Anthers incumbent, at 

 length recurved. Style tardily deciduous : stigma 2-lamellate. Capsule 1- to half-2-celled : 

 seeds marginal on the valves. — Glaucescent, erect herbs; cymes terminal, few-flowered ; 

 corolla blue or white-variegated. 



1. E. eacaltattun, Gr. Annual; leaves elliptical-oblong, minutely cordate at the stem- 

 clasping base ; corolla-segments elliptical-oblong, apicnlate, twice as long as the campamilate 

 tube; capsule 1 -celled. — Plum. Ed. Barm, t.&l.f.l; Jaca. Ic. Rar. t. 33 ; Des6. Fl. 1. 

 t. 15. — Gentiana, L. Lisianthus, Lam. L. glaucifolius, Lam. — 1'-2' high; corolla 1" 

 long. — Hab. Jamaica !, all coll., on dry banks along the coast ; [Cuba !, Haiti ! ; Arkansas ! ; 

 Mexico ! to Venezuela !]. 



2*. ERYTHR^A, Ren. 



Calyx 5-4-partite. Corolla infundibular or salver-shaped, marcescent. Anthers erect, 

 spirally twisted, exserted. Style deciduous : stigma 2-lamellate or infundibular. Capsule 

 of Eustoma. — Annual (rarely perennial) herbs ; cymes terminal, dichotomous ; corolla rosy 

 (white) or y el law. 



2*. E. ramosissima, Pers. Stem low, branched usually from the base ; leaves ovate- 

 oblong, superior oblong-lanceolate ; cyme compound : flowers pedicellate, ebracteate ; corolla- 

 tube during anthesis a little exceeding the calyx .- lobes oblong-lanceolate, bluntish ; stigma 

 2-lamellate; capsule-valves slightly introflexed. — Hab. Naturalized in Jamaica!, March, 

 M'Nab ; [Europe 1 to Siberia !, Arabia 1 and Canary Islands ; naturalized in the eastern 

 United States]. 



