BRITTON: CusAN PLtants NEw To ScIeNnce 83 
I-1.6 cm. broad, rounded at the apex, cuneate at the base, yel- 
lowish-green and glabrous aboye, 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, I-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-I5 cm. long, the 
branches short, ascending or erect, rather densely leafy. Leaves 
oblanceolate, 2-2.5 mm. long, sessile, rounded at the apex, nar- 
