Part 2, 1921] RUBIACEAE L53 



sessile or pedunculate; flowers usually large, white, 5-parted; hypanthium turbinate; calyx 

 cupuliform, the lobes triangular or subulate, persistent; corolla salverform, glabrous outside, 

 the tube elongate, cylindric, the lobes ovate or lanceolate, spreading, coriaceous, contorted. 

 Stamens 5, inserted in the throat of the corolla; filaments very short; anthers dorsifixed, 

 apiculate, included. Disk annular. Ovary 2-celled; style included, divided into 2 linear 

 branches; ovules numerous, subimmersed in the parietal placentae. Fruit baccate, globose or 

 pyriform, large, the pericarp thick and hard. Seeds numerous, large, horizontal, compressed, 

 the testa thin, obscurely reticulate; endosperm corneous; cotyledons broad, foliaceous, the 

 radicle terete. 



Type species, Casasia calophylla A. Rich. 



Lateral veins of the leaves very numerous, approximate, parallel. 



Leaves glabrous. 1. C. calophylla. 



Leaves densely velutinous beneath. 2. C. nigrescens. 



Lateral veins of the leaves few, distant. 



Leaf-blades small, 1 cm. wide or narrower. 3. C. jacquinioid.es. 



Leaf-blades large, 3-14 cm. wide. 



Leaves chartaceous; fruit obovoid-pyriform. 4. C. piricarpa. 



Leaves coriaceous; fruit globose or obovoid -globose. 



Lobes of the corolla equaling or longer than the tube; leaves not 



pungent-apiculate. 5. C. longipes. 



Lobes of the corolla shorter than the tube; leaves pungent- 

 apiculate. 6. C. clusiaefolia. 



1. Casasia calophylla A. Rich, in Sagra, Hist. Cuba 11:9. 



1850. 



Randia calophylla Griseb. Cat. PL Cub. 123. 1866. 



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



Shrub or small tree, up to 8 meters high, glabrous throughout, the branches brown or 

 yellowish; stipules deltoid, 1-3 mm. long, acute or obtuse, thick; petioles 2-8 mm. long; leaf- 

 blades cuneate, cuneate-oblong, or obovate-cuneiform, 3.5-8.5 cm. long, 1-3.5 cm. wide, 

 cuneate-attenuate at the base, rounded at the apex or usually retuse or emarginate, cori- 

 aceous, lustrous, the lateral veins very numerous, oblique, crowded, prominent on both surfaces; 

 calyx 1.5 mm. long, the lobes triangular or lance-subulate, about as long as the limb; corolla- 

 tube 2-2.5 cm. long, subcylindric, slightly ampliate above, glabrous within, the lobes lanceolate, 

 subobtuse, half as long as the tube; fruit globose, 3.5-7 cm. in diameter. 



Type locality: Vuelta de Abajo, Cuba. 



Distribution: Dry plains and hillsides, Cuba and the Isle of Pines. 



Illustration: Sagra, Hist. Cuba pi. 49. 



2. Casasia nigrescens (Griseb.) C. Wright; Urban, Symb. 

 Ant. 5: 505. 1908. 



Randia nigrescens Griseb. Cat. PL Cub. 123. 1866. 



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



Shrub, the branches brownish, velutinous when young; stipules ovate, acute, 1-3 mm. 



long; petioles stout, 3-7 mm. long; leaf-blades oblong or narrowly obovate-oblong, 2.5-10 cm. 



long, 1-4 cm. wide, cuneate at the base, obtuse or rounded at the apex, thick-coriaceous, 



lustrous above, glabrous or strigillose along the costa, the venation impressed, densely fulvous- 



velutinous beneath, the lateral veins very numerous, oblique, crowded, prominent; inflorescence 



few-flowered, pedunculate; calyx 5-lobate, the lobes mucroniform, distant; fruit globose, 3.5-4 



cm. in diameter, brownish, seeds very numerous, flat, about 1 cm. long, dark-brown. 



Type locality: Western Cuba. 

 Distribution: Dry thickets, Cuba. 



3. Casasia jacquinioides (Griseb.) Standley, Contr. U. S. Nat. 

 Herb. 20: 208. 1919. 



Alibertia jacquinioides Griseb. Cat. PL Cub. 123. 1866. 

 Casasia parvifolia Britton, Bull. Torrey Club 43: 461. 1916. 



Shrub, the branchlets slender, scaberulous when young, densely leafy at the ends; stipules 

 deltoid-acuminate, 1-3 mm. long; petioles stout, 2 mm. long or shorter; leaf-blades oblanceolate- 



