444 
A. Spikelet solitary. 
Spikelet terminal, not subtended by a bract. 
Caudex stout, 2-15 cm. high, densely clothed with 
persistent leaf-bases. 
Leaves elongated; spikelet straw-color. 
Leaves short; spikelet dark brown. 
Spikelet apparently lateral, subtended by a bract. 
ch 
Achene papillose-reticulated. 
Achene twice as long as thick. 
Achene s y longer than thick, 
B. Spikelets (except in depauperate plants) several or nu- 
merous. 
a. Spikelets in a single capitate cluster. 
Plants leafless or nearly so, or leaves I-3 cm. long. 
Spikelets few, 6 mm. long or less. 
de 6 mm. long or less. 
Leaf-blade 1-3 cm. long. 
Spikelets several, 6-20 m 
Leaves about one half as long as the culm. 
b. Spikelets in a simple or compound umbel, or sometimes 
compact or capitate. ‘ 
Spikelets clustered in umbelled heads or spikes, or head 
sometimes solitary, 
Culm pilose above. 
Culm glabrous. 
Scales mucronate by the excurrent midvein. 
Scales acute, the midvein not excurrent; achene 
papillose. 
Spikelets not clustered in the umbels, or somewhat 
clustered. 
Achene 0.5 mm. long, gray, densely pitted; scales 
suborbicular. — 
Achene 0.7-1 mm. long, white, transversely undu- 
late; scales ovate. 
ox 
16. 
BRITTON: STUDIES OF WEST INDIAN PLANTS 
. paradoxus. 
. leucostachys. 
conifera. 
. S. floccosus. 
S. portoricensis. 
curassavicus. 
. subaphyllus. 
S. alpestris. 
see 
<5 
beeen 
S. 
Wilsont. 
Tuerckheimit. 
fimbriatus. 
vestitus. 
junciformis. 
antillanus. 
coarctatus. 
capillaris. 
I. STENOPHYLLUS PARADOXUS (Spreng.) Standley, Contr. U. S. 
Nat. Herb. 18:88. 1916 
Schoenus paradoxus Spreng. Syst. 1: 190. 1825. 
Bulbostylis paradoxa Linden; Regnell, Cyvo. 17. 1 
ela. 
goo 
TYPE LOCALITY: Mt. Silla de Cacares, near El Pexual, Venezu- 
DistRIBuTIon: Isle of Pines, Cuba: continental tropical 
America. 
