Britton : Cuban Plants New to Science 63 



Pilea trinitensis Britton, sp. nov. 



Decumbent, glabrous or minutely puberulent, branched, about 

 7 dm. long. Leaf-pairs, unequal ; petioles slender, those of the 

 larger leaves 2-4 cm. long; leaf-blades oblong-lanceolate, 7 cm. 

 long or less, 3-nerved, entire, ciliate, acuminate at the apex, acute 

 or obtuse at the base, rather thin in texture, the underside densely 

 covered with minute linear raphides, the upper surface minutely 

 papillose; staminate inflorescence glomerate-paniculate, nearly as 

 long as the upper leaves; pistillate flowers paniculate, the pani- 

 cles much shorter than the leaves. 



On rocks, Los Cocos, near Siguanea,. Trinidad Mountains, 



Santa Clara, 430 meters altitude (Britton & Wilson 5075). 



Pilea neglecta Britton, sp. nov. 



Stem slender, densely covered with linear raphides. Leaves 

 oblong to oblong-lanceolate, membranous, acute, entire, 3-veined, 

 glabrous, the pairs unequal in size and unequally petioled ; larger 

 leaves 5 cm. long, 1.5 cm. wide, with petioles I cm. long; smaller 

 leaves 2.5 cm. long, 1-1.2 cm. wide, with petioles 3 mm. long; 

 raphides of upper leaf-surfaces linear-filiform, very numerous 

 and approximate, those of under leaf-surfaces thicker, bright 

 white, numerous, but not close together ; peduncles filiform, about 

 as long as the longer petioles ; inflorescence paniculate, much 

 shorter than the leaves, the flowers sessile in small clusters ; 

 achene oval, apiculate, scarcely 0.5 mm. long. 



Cuba, C. Wright 2233, m P art > m herbarium of the Missouri 

 Botanical Garden. 



Pilea siguaneana Britton, sp. nov. 



Stems stout, decumbent, 3-5 dm. long, glabrous. Leaf-pairs 

 equal or nearly so ; leaves lanceolate or oblong-lanceolate, entire, 

 3-nerved, 6-10 cm. long, 2-4 cm. wide, long-acuminate at the 

 apex, obtuse or rounded at the base, the upper side covered with 

 minute linear raphides, the underside bearing oblong, thick, white 

 raphides, scattered or somewhat clustered ; petioles 1-2 cm. long ; 

 staminate flowers densely capitate in globose heads about 6 mm. 

 in diameter, on slender axillary peduncles 1-2 cm. long. 



Bed of stream, Siguanea, Trinidad Mountains, Santa Clara, 



400 meters altitude (Britton & Wilson 4979). 



Pilea Clementis Britton, sp. nov. 



Woody; stems ascending or straggling, simple or branched. 

 3-4 dm. long. Leaf-pairs nearly equal, but their petioles unequal 



