Britton: Stupies OF West INDIAN PLANTS—XI 55 
Forests in wet or moist districts, Trinidad; type from Arima 
(Britton 2084). In flower March 4, 1921. 
66. UNDESCRIBED SPECIES FROM PORTO RICO 
Scleria doradoensis Britton, sp. nov. 
Perennial? Culms slender, rather stiff, glabrous, erect, tufted, 
3-4dm. high. Leaves glabrous, scabrate, shorter than the culm, 
ut 2 mm. wide, the apex attenuate; inflorescence terminal, 
u f 
not nodding; bracts about 3 mm. long, brown-ciliate; achene 
trigonous base; hypogynium none. 
White sand near Dorado (Britton, Britton and Brown 7064). 
Scleria Stevensiana Britton, sp. nov. 
Perennial? rootstocks short or none; culms very slender, 
tufted, slightly scabrous above, weak, 4-5 dm. long. Leaves 
soft, scabrous-margined, 4 mm. wide or less, panicles 2 or 3, 
axillary, the lower stalked, the upper one nearly sessile, about 
3 cm. long; bracts narrowly linear-subulate, 2.5 cm. long or less; 
spikelets several or numerous; achene depressed-globose, about 
1.5 mm. in diameter, apiculate, glabrous, shining, faintly re- 
ticulated, nearly white, with 3 vertical brown bands; hypogynium 
lobes lanceolate, acuminate, glabrous. 
Lares (Stevens and Hess 4944). 
Lagenocarpus portoricensis Britton, sp. nov. 
Culm stout, erect, trigonous, glabrous, about 8 dm. high. 
Leaves 8-12 mm. wide, nearly as long as the culm, smooth, 
mm. long, short-stalked; scales subtending the achene obovate, 
subtruncate, ciliolate, mucronate; achene, with its beak, ovoid, 
3 mm. long, brown with three darker blotches, the beak about 
as long as the body. 
Wet sandy situations between Manati and Vega Baja (Under- 
wood and Griggs 946, type); collected also by Sintenis near 
Dorado. Recorded by C. B. Clarke and by Urban as L. tremulus 
Nees. 
