Britton : Cuban Plants New to Science 73 



In rich woods, Navas to Camp Buena Vista, Oriente. En- 

 demic. A shrub about 3 m. high. 



Ramsdenia incrustata (Urban) Britton, comb. nov. 



Phyllanthus incrustatus Urban, Repertorium 13: 449. 1914. 



Moist woods, mountains of northern Oriente. Endemic. 



Orbicularia scopulorum Britton, sp. nov. 



A shrub, 2 m. high, with slender, ascending branches and very 

 slender leafy twigs; stipules setaceous, deflexed, 3-4 mm. long; 

 leaves spatulate-obovate, 5-7 mm. long, nearly sessile, distichous, 

 minutely foveolate and inconspicuously veined above, distinctly 

 pinnately veined beneath, rounded at the apex, cuneate at the 

 base ; flowers and fruit unknown. 



Rocky thickets near Camp Toa, Oriente, at about 400 m. alti- 

 tude (Shafer 4006). 



Orbicularia foveolata Britton, sp. nov. 



A vine-like shrub, with short, ascending branches, the twigs 

 very slender. Stipules subsetaceous, about 1 mm. long. Leaves 

 coriaceous, orbicular-obovate or elliptic-orbicular, nearly sessile, 

 8-12 mm. long, shining, inconspicuously veined and distinctly fo- 

 veolate above, dull, and prominently veined beneath, rounded at 

 the apex, obtuse at the base ; flowers and fruit unknown. 



Camp La Gloria, south of Sierra Moa, Oriente (Shafer 8271). 



ROIGIA Britton, gen. nov. 



A shrub with dimorphous branches, the narrowly spatulate, 

 entire leaves spirally arranged on the short secondary branches, 

 the staminate flowers long-peduncled, solitary in the axils. Stam- 

 inate flowers with a 6-parted calyx, the segments obovate, 

 rounded, erose ; stamens 10, the filaments united into a long col- 

 umn, free above; anthers suborbicular. [In honor of Juan T. 

 Roig, enthusiastic Cuban botanist.] A monotypic genus. 



Roigia comosa (Urban) Britton, comb. nov. 



Phyllanthus comosus Urban, Repertorium 13: 451. 19 14. 



Dry rocky soil, serpentine hills near mouth of Rio Yamani- 

 guey, Oriente. Endemic. 

 Conami ( ?) ovalifolia Britton, sp. nov. 



A glabrous undershrub, 1 m. high or less, the stem rather 

 stout, the branches mostly simple, elongated, slender, compressed 



