GENTIANEjE. 425 



long, pointed, tapering into the petiole: sheath short, appressed ; cymes 3-5(-l)-flowered, 

 peduneled, axillary, equalling the leaf; calyx ^-partite, narrowly 5-keeled ; corolla yellow : 

 tube clavate-obconical, twice or thrice as long as the oblong-lanceolate pointed lobes ; 

 stamens included, exceeded by the style. — Lisiauthus, Sw. — 6' high ; leaves 5"-3" long, 

 larger than in the preceding ; corolla 2"(-li") long. — Hab. Jamaica !, Mac/., M'Nab, March, 

 in the high mountains of Port Royal. 



14. Ij. exsertus, Gr. Shrubby ; branches subcyliudrical or obtusely tetragonal ; 

 leaves elliptical-oblong or elliptical, pointleted, pctioled : sheath truncate-spreading ; cymes 

 many-flowered, corymbiform, terminal and axillary : calyx deeply 5 -fid, destitute of keels or 

 wings ; corolla pale, narrowly cylindrical to the middle, abruptly campauulate above it, twice 

 or thrice exceeded by the long-exserted stamens : lobes ovate or ovate-oblong, cuspidate or 

 bluntish, much shorter than the tube. — Lisianthus, Sw. L. callosus, Berter. — 6'-12' high ; 

 corolla l"(-l3") long. — Hab. Jamaica!, Pd., Wils., March, in the high mountains of 

 S. Andrews. 



15. Ij. umbellatus, Gr. Shrubby; branches cylindrical or slightly tetragonal ; leaves 

 lanceolate-oblong, pointed, long-tapering into the petiole : sheath truncate-spreading ; cymes 

 contracted, many -flowered, supported by ovate involucral leaves, long -peduneled -. peduncles 

 axillary, equalling the leaf; calyx 5 -fid, destitute of keels or wings ; corolla yellow, clavate : 

 lobes roundish or ovate, much shorter than the tube ; stamens exserted, about one-third or 

 one-fourth longer than the corolla.— Hook. Ic. t. 687, 688.— 6'-20' high ; leaves 8"-10", 

 corolla about 1" long. — Hab. Jamaica !, Pd., Al., Wils., March, in high mountains, Port- 

 land, Guy's Hill S. Anus, Dolphin Westmoreland. 



8. VOYHIA, Aubl. 



Calyx 5 (-4) -fid, rarely none. Corolla salver-shaped, rarely infundibnlar-clavate : tube at 

 length cleft at the base. Stamens included : anthers erect, straight, sometimes connate, 

 either sessile below the corolla-throat or the filaments inserted into the upper part of its 

 tube. Style persistent •. stigma capitate. Capsule i-2-celled : seeds marginal on the intro- 

 flexed valves, usually tailed at both ends. — Herbs devoid of chlorojihyll, growing on putrid 

 wood or leaves ; leaves usually reduced to scales ; flowers terminal, solitary or in corym- 

 bose cymes. 



Sect. 1. Leiphaimos, Schlecht., Cham. — Anthers subsessile, roundish. Capsule septicide 

 at the middle. — Leafless herbs. 



16. V. uniflora, Lam. Stem simple, 1-flowered; scales alternate, clasping; calyx 

 5-fid, one-tenth to one-eighth as long as the corolla : lobes ovate ; corolla yellow, salver- 

 shaped : tube filiform, dilated at the base and at the throat, 6-4 times as long as the ovate, 

 pointed lobes. — Jacq. Amer. Pict. t. 89. — Gentiana, Jacq. — 6"-8" high ; corolla-tube 1" 

 long. — Hab. Jamaica !, Pd , S. Mary's at Petersfield ; S. Vincent !, Guild. ; Trinidad !, Pd., 

 Cr., Arima, Aripo ; [Cuba, French islands! ; New Granada !, Guiana ! to South Brazil !]. 



17. V. tenclla, Guild.! Stem simple, \-flowered ; superior scales alternate; calyx 

 5-fid, one-fourth as long as the corolla -. lobes ovate-lanceolate ; corolla rosy, infundibular : 

 tube campanulate, 3-4 times as long as the lanceolate lobes. — Bot. Misc. \.t. 25 B. — 1"- 

 4" high ; corolla 4"'-6"' long.— Hab. Jamaica!, M'Nab; S.Vincent!, Guild. 



Sect. 2. Letanthostemon, Gr. — Anthers 2-aicned at the base : filaments distinct. 

 Capsule septicide at the middle. — Leafless herbs ; flowers cymose. 



18. V. mexicana, Gr. Stem simple below the cyme; scales opposite; cyme usually 

 few-flowered : lateral flowers shortly pedicellate, central sessile ; calyx 5-fid : lobes lanceo- 

 late, pointed ; corolla small, infundibular : lobes minutely deltoid, pointed, one-fourth to one- 

 sixth as long as the tube. — Leiphaimos parasitica, Schlecht., Cham. — 4"-6" high, slender; 

 corolla 3"'-4'" long ; seeds tailed, hair-like. — Hab. Jamaica !, Pd., in moist woods near the 

 summit of Dolphin's Peak, Westmoreland, at 3800' alt. ; [Mexico!]. 



19. V. trinitensis, Gr. (n. sp.). Stem terminated by a contracted cyme; scales op- 

 posite, spreading ; flowers pedicellate ; calyx 5-fid : lobes subulate-setaceous ; corolla salver- 

 shaped : lobes oblong-linear, bluntish, one-fourth to one-third as long as the tube. — Dis- 



