62 BRITTON: CUBAN PLANTS NEw To SCIENCE 
As grown at The New York Botanical Garden, the young 
leaves are always pubescent, but become glabrous soon after 
reaching their full size. 
Family URTICACEAE 
Pilea sumideroensis Britton, sp. nov. | 
Fleshy, bushy, glabrous, branched, 2.5-4 dm. high, the branches 
stout, ascending, the main stem nearly 1 cm. thick. Leaves thick, 
fleshy, obovate, 6-18 mm. long, entire, obscurely pinnately about 
5-veined, rounded at the apex, cuneate at the base, the margins 
revolute, the upper surface densely covered with linear raphides, 
the under surface finely reticulate when dry, the very slender 
petiole 9 mm. long or less. 
Top of high cliff, limestone hills, vicinity of Sumidero, Pinar 
del Rio (Shafer 13816). Described from sterile specimens, but 
apparently not referable to any previously known species. 
Pilea (?) carnosa Britton, sp. nov. 
Shrubby, erect, fleshy, 5 dm. high, the stems white. Leaves 
thick, nearly orbicular, 6-12 mm. broad, faintly 3-nerved, rounded 
at the apex, rather abruptly narrowed at base into slender pe- 
tioles 8 mm. long or less. 
Cliff, at 160 m. altitude, Ensenada de Mora, Oriente (Brition, 
Cowell & Shafer 12967). l 
A curious plant, referred to this genus with hesitation. 
Pilea sevillensis Britton, sp. nov. 
A slender vine, 3 dm. long or longer, creeping on the bark of 
trees, somewhat branched, the young twigs and petioles spar- 
ingly pubescent. Leaves oval or suborbicular, 1.5 cm. long or 
less, those of each pair nearly of the same size, 3-nerved, entire, 
rounded at the apex, obtuse at the base, the linear raphides incon- 
spicuous above, prominent and loosely scattered beneath, the 
slender petioles 5-12 mm. long; stipules semi-orbicular, 2-3 mm. 
broad ; cymes few-flowered, shorter than the leaves ; achene about 
1.5 mm. long. 
Cafion, Upper Guama River, Sevilla Estate, near Santiago, 
Oriente (Taylor 183). 
