Part 2, 1921] RUBIACEAE 133 



involucre entire, 8-10 mm. long; calyx and hypanthium about 1 cm. long, the calyx often 



split; corolla white, funnelform, the tube 7-17 mm. long, 3-5 mm. thick, the lobes 5-7, one and 



one half times as long as the tube or shorter, lance-linear or linear, acutish, 1.5-2.5 mm. wide; 



anthers 4-6 mm. long; style bifid. 



Type locality: Montserrat. 



Distribution: Cuba, Porto Rico, and the Lesser Antilles; also in Brazil. 



Illustrations: Vahl, Eclog. pi. 5; E. & P. Nat. Pfl. 4 4 :/. 25, N. 



44. MUSSAENDA L. Sp. PI. 177. 1753. 



Shrubs or rarely herbs, erect or scandent, the branchlets terete. Leaves opposite or 

 ternate, petiolate or subsessile, membranaceous. Stipules interpetiolar, solitary or binate, 

 free or connate, usually deciduous. Flowers ochraceous or white, arranged in terminal corymbs, 

 pedicellate, the bracts and bractlets deciduous; hypanthium oblong or turbinate; calyx 5- 

 lobate, the lobes short or elongate, erect or recurved, usually deciduous, one of them often 

 expanded into a large, foliaceous, petiolate, white or colored blade; corolla funnelform, the 

 tube elongate, usually sericeous, the throat villous, the limb 5-lobate, the lobes small, usually 

 acute, reduplicate-valvate. Stamens 5, inserted in the throat of the corolla; filaments very 

 short; anthers linear, acute or obtuse, dorsifixed. Disk annular or swollen. Ovary 2-celled; 

 style filiform, with 2 short branches; ovules numerous, multiseriate, the placentae fleshy, 

 peltately affixed to the septum. Fruit fleshy, indehiscent, oblong or globose, areolate at the 

 apex or crowned with the persistent calyx, 2-celled. Seeds numerous, minute, oblong, turgid 

 or compressed, the testa foveolate; endosperm fleshy; embryo minute, cylindric or clavate, 

 bifid. 



Type species, Mussaenda frondosa L. 



1. Mussaenda pubescens Ait. Hort. Kew. ed. 2. 1: 372. 1810. 



Erect shrub, the branches slender, strigose or strigillose when young; stipules binate, or 

 solitary and cleft, lance-linear to ovate, 3-10 mm. long, sericeous-strigose ; petioles stout, 

 0.3-1.7 cm. long; leaf-blades ovate, ovate-oblong, elliptic-oblong, or oblong-oval, 4-19 cm. long, 

 1.3-9 cm. wide, acuminate to attenuate at the base or sometimes obtuse, acute or abruptly 

 acuminate at the apex, bright-green above, strigose-pilose, especially along the veins, or glab- 

 rate, the venation prominulous, slightly paler beneath, densely sericeous-strigose along the 

 veins and sparsely so elsewhere, the lateral veins numerous, slender, prominent, arcuate- 

 ascending; corymbs few- or many-flowered, 4-9 cm. broad, the pedicels very short, stout; 

 bracts linear, elongate; calyx and hypanthium strigose, the hypanthium 3 mm. long, the 

 calyx-lobes 2.5-6 mm. long, linear-attenuate or subulate, erect, one of the lobes often expanded 

 into a white limb, this ovate, oval, or elliptic, 3-9 cm. long, 0.8-4.5 cm. wide, abruptly acumi- 

 nate, long-petiolate ; corolla 3-4 cm. long, sparsely or densely strigose outside, the tube very 

 slender, the lobes 4-6 mm. long, lance-triangular or ovate, attenuate-acuminate, the throat 

 densely yellow-barbate; fruit subglobose, 6-10 mm. in diameter, sparsely strigose; seeds about 

 0.7 mm. in diameter, black, lustrous, coarsely favose. 



Type locality: China. 



Distribution: China; escaped from cultivation in Jamaica and perhaps in Barbados. 



Illustrations: Bot. Mag. pi. 2099; Bot. Cab. pi. 451. 



Doubtful species 



Mussaenda acutiflora Bartl.; DC. Prodr. 4: 370. 1830. Described from Mexico. 

 It is probable that the locality is incorrect. 



45. DUGGENA West, Bidr. St. Croix 269. 1793. 



Gonzalagunia R. & P. Fl. Per. Prodr. 12. 1794. 



Buena Cav. Anal. Hist. Nat. 2: 278. 1800. 



Gonzalea Pers. Syn. PI. 1: 132. 1805. 



Caryococca Willd.; Schultes, in R. & S. Syst. Veg. Mant. 3: 131. 1827. 



Shrubs or small trees, more or less pubescent, the branchlets slender, terete. Leaves 



opposite, petiolate or subsessile. Stipules interpetiolar. Flowers small, sessile or pedicellate, 



