Britton : Cuban Plants New to Science 79 



Dry, rocky hillside, Sierra Nipe, Piedra Gorda to Woodfred, 

 Oriente {Shafer 318s). 



Family RHAMNACEAE 



Sarcomphalus cubensis Britton, sp. nov. 



A glabrous tree about 10 m. high, the twigs rather stout, stiff, 

 somewhat angled. Leaves borne on short spurs, elliptic or obo- 

 vate-elliptic, slightly fleshy, 1.5-3.5 cm - l om J> rounded or emargi- 

 nate at the apex, obtuse or somewhat narrowed at the base, faintly 

 pinnately veined with the lower pair of veins the strongest, the 

 midvein rather prominent beneath, the slender petioles 3-5 mm. 

 long; fruiting pedicels very slender, 8-12 mm. long; fruit ovoid, 

 6-8 mm. long, short-tipped, about 3 times as long as the calyx. 



Coastal thickets, Oriente, Santa Clara. Type from Punta 

 Piedra, Nipe Bay, Oriente (Britton & Cozvell 12486). 



Rhamnidium ( ?) oblongifolium Britton & Wilson, sp. nov. 



A shrub 1 m. tall, with puberulent twigs ; leaves oblong, occa- 

 sionally somewhat elliptic-oblong, 0.9-2.5 cm. long, 3-6 mm. 

 broad, rounded and emarginate at the apex, obtuse at the base, 

 entire, green and lustrous above, whitish and conspicuously black- 

 dotted beneath, glabrous ; petioles 1-2.5 mm - l n g> puberulent ; 

 flower-clusters axillary, long-peduncled ; sepals triangular-ovate, 

 acuminate, glabrous, glandular-dotted ; petals broadly triangular- 

 obovate ; filaments subulate ; anthers ovate ; ovary ovoid, glabrous, 

 black-dotted. 



Rocky hill, palm barren, Santa Clara (Britton & Cowell 



Rhamnidium ( ?) orbiculatum Britton & Wilson, sp. nov. 



An erect shrub, 2 m. tall, with grayish-brown, glabrous twigs ; 

 leaves oval to orbicular-oval, 1.5-2.5 cm. long, 1.5-2.4 cm. broad, 

 rounded and emarginate at the apex, rounded at the base, 

 lustrous, reticulate-veined and black-dotted above, paler, black- 

 dotted and dull beneath, glabrous; petioles 5-6 mm. long; flower- 

 clusters axillary, long-peduncled ; sepals ovate, glabrous, black- 

 dotted ; petals present ; filaments short, anthers ovate. 



Dry soil, savannas near Camaguey (Britton & Cowell 13188). 



Rhamnidium Rocanum Britton & Wilson, sp. nov. 



A shrub with slender grayish-brown puberulent twigs. Leaves 

 oblong-elliptic, 7-10 cm. long, 2.4-3.5 cm - broad, rounded or occa- 



