Britton : Cuban Plants New to Science 83 



1-1.6 cm. broad, rounded at the apex, cuneate at the base, yel- 

 lowish-green and glabrous above, the midvein impressed, paler 

 and often loosely pilose beneath, the midvein prominent, the lat- 

 eral veins indistinct ; margin more or less revolute ; petioles slen- 

 der, 5-7 mm. long, pilose; sepals suborbicular, 3 mm. long, ap- 

 pressed-pilose on the back ; petals elliptic-obovate or obovate, 1 

 cm. long, 5-6 mm. broad, " white " ; ovary appressed-pilose. 



Type from thicket, vicinity of Camp San Benito, Oriente 

 (Shafer 4063). 



Family CLUSIACEAE 



Rheedia brevipes Britton, sp. nov. 



A tree about 4 m. high, the twigs short ; leaves opposite, borne 

 in 2-4 pairs near the ends of the twigs, rigid, oblong-lanceolate 

 to ovate-lanceolate, 4-6 cm. long, 1-2.5 cm - wide, pinnately veined, 

 acuminate, spinulose-tipped, narrowed or obtuse at the base, the 

 stout petiole about 3 mm. long ; staminate flowers solitary or few 

 together on pedicels 3 mm. long; flower-bud subglobose, 2.5-3 

 mm. in diameter; sepals suborbicular, rounded. 



Bank of arroyo, between Santa Clara and Manicaragua, 

 Santa Clara (Britton & Cowell 10262). 



Clusia callosa Britton & Wilson, sp. nov. 



A glabrous shrub, 2-3 m. tall, with rather thick, more or less 

 angled, grayish, branches ; leaves broadly obovate, 4-6.5 cm. long, 

 2.7-4.5 cm. broad, rigid-coriaceous, rounded at the apex, obtuse 

 at the base, lustrous above, the veins rather indistinct, paler be- 

 neath and conspicuously black glandular-dotted, the midvein 

 prominent, vanishing at or above the middle, the lateral veins 

 obscure or indistinct, the margin revolute and conspicuously 

 thickened; inflorescence terminal, 6-7 cm. long; stigmas 5; fruit 

 subglobose or globose-obovoid, 1.5 cm. long, 1.2-1.5 cm. broad. 



Type from Camp La Gloria, south of Sierra Moa, Oriente 

 (Shafer 8206). 



Family HYPERICACEAE 



Hypericum ophiticola Britton, sp. nov. 



Perennial by a deep slender root, much branched, the stems 

 angular, slender, prostrate or ascending, 5-15 cm. long, the 

 branches short, ascending or erect, rather densely leafy. Leaves 

 oblanceolate, 2-2.5 mm. long, sessile, rounded at the apex, nar- 



