Part 2, 1921] RUBIACEAE 155 



57. TOCOYENA Aubl. PI. Guian. 121. 1775. 



Ucriana Willd. Sp. PL 1: 961. 1797. 



Shrubs, glabrous or pubescent, the branchlets compressed. Leaves opposite, petiolate, 

 coriaceous. Stipules small, intrapetiolar, triangular, acute. Flowers large, white or yellow, 

 ebracieate, subsessile, arranged in terminal cymes; hypanthium turbinate or obovoid; calyx 

 5-lobate, persistent; corolla funnelform, the tube slender, naked in the throat, the limb 5- 

 lobate, the lobes spreading, obtuse or acute, contorted. Stamens 5, inserted in the throat of 

 the corolla; filaments very short; anthers linear, acute, bilobate at the base, dorsifixed, ex- 

 serted or subexserted. Disk annular. Ovary 2-celled; style stout, elongate, glabrous, or 

 pilose above, the branches stout, linear or obovate; ovules numerous, the placentae linear, 

 affixed to the septum. Fruit baccate, oblong or oval, fleshy, 2-celled. Seeds numerous, im- 

 mersed in the pulp, horizontal, compressed, the testa membranaceous; endosperm corneous; 

 embryo minute, lateral, the cotyledons oblong, the radicle short, clavate. 



Type species, Tocoyena longiflora Aubl. 



1. Tocoyena cubensis Britton. 



Sphinctanlhus longiflorus Griseb. Mem. Am. Acad. II. 8: 503. 1862. 



Tocoyena longiflora K. Schumann, in E. & P. Nat. Pfl. 4 4 : 74. 1891. Not T. longiflora Aubl. 1775. 



Genipa longiflora Maza, Anal. Soc. Esp. Hist. Nat. 23: 288. 1894. 



Shrub, 2-3 meters high, glabrous throughout, the branches grayish, the branchlets stout, 

 compressed, rugulose, the internodes short; stipules triangular, acuminate, thick; petioles 

 stout, 0.7-2 cm. long; leaf-blades obovate-oblong, cuneate-obovate, or oblanceolate, 7.5-12 

 cm. long and 2.2-5.5 cm. wide or larger, acute or cuneate at the base, obtuse or rounded at the 

 apex, coriaceous, dark-green and very lustrous above, the venation prominulous, paler and 

 brownish beneath, the costa stout, prominent, the lateral veins slender, about 8 on each side, 

 ascending, nearly straight, the margin more or less revolute ; cymes few-flowered, short-peduncu- 

 late; hypanthium 1.5 cm. long, oblong; calyx 5 mm. long, shallowly lobate, the lobes broadly 

 deltoid, acute; corolla-tube 16.5-20 cm. long, about 5 mm. thick, greenish, ampliate in the 

 throat, the lobes white, 2 cm. long, lanceolate, acute; stigma-lobes ovate; fruit oval, 5 cm. 

 long, 3.5 cm. thick. 



Type locality: Forests near Monte Verde, Cuba. 

 Distribution: Oriente, Cuba. 



58. GENIPA L, Syst. Nat. ed. 10. 931. 1759. 



Thevenolia L.; Post & Kuntze, Lex. Gen. Phan. 557. 1903. 



Trees, glabrous or pubescent, the branchlets terete. Leaves opposite, petiolate or sub- 

 sessile, large. Stipules intrapetiolar, elongate, deciduous. Flowers large, white or yellowish, 

 pedicellate, arranged in few-flowered, axillary or terminal cymes; hypanthium turbinate or 

 campanulate, the calyx ampliate, truncate or 5-6-lobate, persistent; corolla salverform, the 

 tube short or elongate, the throat pilose or glabrous, the limb 5-6-lobate, the lobes spreading, 

 obtuse or acute, contorted, coriaceous. Stamens 5 or 6, inserted at the top of the corolla- 

 tube; anthers sessile, dorsifixed, linear, exserted. Disk cupular. Ovary 1- or 2-celled; style 

 thick, the stigma fusiform, obtuse; ovules numerous, the placentae parietal, stipitate or longi- 

 tudinally adnate to the septum. Fruit baccate, subglobose, large, the pericarp thick. Seeds 

 numerous, large, compressed, the testa subfibrous; endosperm cartilaginous; embryo plane, 

 the cotyledons broad, foliaceous, the radicle terete. 



Type species, Genipa americana L. 



Secondary veins parallel between the lateral veins, distinct; leaf -blades narrowed 



to an obtuse base. 1. G. Maxonii. 



Secondary veins irregularly reticulate; leaf -blades narrowed to a very acute 

 base. 

 Leaves acute or short-acuminate at the apex; stipules triangular, acuminate. 



Bracts distinct, acute or acuminate; calyx 5-8 mm. long. 2. G. americana. 



Bracts connate, obtuse; calyx 3-3.5 mm. long. 3. G. codonocalyx. 



Leaves rounded at the apex; stipules obovate, rounded. 4. G. Williamsii. 



