GENTIANE^. 423 



8. S LEVOOTIA, Esiorieilli . i^-S^-^^^-S! -' ;Vt.f-, /S-', . 



Calyx 5-fid. Corolla infundibular, marcescent. Stamens alternating with teeth, in- 

 cluded : anthers erect, straight, corniculate at the top. Style deciduous : stigma capitate. 

 Capsule 1-celled : seeds marginal on the valves. — Perennial, leafy herbs ; flowers glomerate 

 in the axils. 



3. S.^ccidentalis, 6r. Stem roughish ; Zeare* elliptical- lanceolate, acuminate at both 

 ends, sharply pointed ; calyx-lobes subulate, squarrose, nearly as long as the capsule. — Plum. 

 Ed. Burm. t. 81. /. 2. — Gentiana verticillata, L. (Hippion, Spreng.). — 1'-3' high; leaves 

 3-nerved, 2"-4" long ; corolla " blue," 3'" long. — Hab. S. Vincent 1, Guild., Grenada !, 

 Lane ; Trinidad !, Sch., Pd., Cr., S. Anus, Maraval ; [Cuba to ^French islauds]. 



4. COUTOUBEA, Jubl. 



Calyx 4-fid, 3-2-bracteolate. Corolla shortly salver-shaped, marcescent. Anthers sagit- 

 tate, straight, exserted. Style deciduous ; stigma 2-lamellate. Capsule half-4-celled, 2-valved : 

 seeds marginal on the introflexed valves. — ^Annual, virgate herbs ; flowers spicate or race- 

 mose, white or reddish. 



4. C. densiflora, Mart. Leaves oblong-lanceolate, roundish or cordate at the sheath- 

 ing base ; flowers spicate, 3-bracteolate, densely approximate or the inferior somewhat 

 distant. — Cav. le. t. 328 ; a form vrith ternately whorled leaves (C. ternifolia, Cav.). — C. 

 spicata, Kth., Benth. {nan Auhl.). — 1'-3' high; coroUa-tube 3"'-2"' long, as long as the 

 lobes.— Hab. Trinidad !, Lockh., Sch., on dry, gravelly banks j [Guadeloupe"! ; Honduras ! 

 to Brazil I]. , 



5. SCHULTESIA, Mart. 



Calyx 4i-h-^i.: tube 4-5-winged or -keeled. Corolla Infundibular, marcescent: lobes 

 broadly rounded or subtruncate. Anthers exceeded by the corolla-limb, straight, incumbent. 

 5^y2e deciduous : stigma 2-lamellate or 2-globose. Capsule \-ce\\e(!i : seeds marginal on the 

 slightly introiiexed valves. — Annual herbs; stem erect, tetragonal ; flowers in terminal 

 cymes or single, rosy, purple or yellow. 



5. S. stenophylla, J/tzr^. Leaves oblong, lanceolate or linear; cymes dichotomous: 

 lateral flowers 2-bracteolate, central ebracteolate, shortly pedicellate ; calyx i-winged: wings , 

 transversely veined, semiovate or semilanceolate ; corolla rosy -violet, i'fld lobes subtruncate- y 

 obovate ; filaments 2-dentate below. — Aubl. t. 26./. 1; Besc. Fl. 1. t. 20. — Exacum 

 guianense, Aubl. E. cubense, Peepp.l — Variable; corolla 8'" long. — Hab. Jamaita!, 

 Macf. ; Trinidad !, Lockh., Cr., in moist savannahs ; [Cuba ! and Mexico ! to Southern 

 Brazil !]. 



6. S. heterophylla, Miq. Leaves lanceolate-linear ; cyme few-1 -flowered : flowers 

 2-bracteolate vrith elongated bractlets, central subsessile ; calyx narrowly i-winged: wings 

 transversely veined, semilanceolate-linear ; corolla large, rosy, i-fid: lobes obovate, mucro- 

 nulate ; filaments 2-dentate or subulate at the base. — Spitharaeous ; stem simple below the 

 summit, corolla 14" to almost 2" long. — Hab. Jamaica !, iKa^f. ; [Haiti!; Panama! to 

 Brazil !, in moist savannahs]. 



6. LISIANTHUS, Aubl. 



Calyx 5-partite or 5-fid : divisions imbricative, not keeled. Corolla infundibular or 

 salver-shaped. Stamens inserted into the inferior part of the corolla-tube, often unequal : 

 anthers at length recurved, with the connective usually enlarged. Style persistent : stigma 

 2-lamellate. Capsule 2-celled by the introflexed valves. — Herbs or shrubs ; flowers usually 

 in terminal cymes. 



Sect. 1. Helia, Mart. — Corolla marcescent: tube constricted, limb spreading, often 

 ae. — Herbs; leaves archveined. 



7. E>. chclonoides, L. Annual; stem nearly cylindrical, simple; leaves ovate or 

 elliptical, superior sessile ; cyme-branches racemiform, with unilateral flowers ; calyx 5-fid : 

 lobes blunt ; corolla greenish, enlarged at the throat : lobes oblong, blunt, slightly exceed- 



