HITCHCOCK AND CHASE—GRASSES OF THE WEST INDIES. 295 
A weed in cultivated soil, introduced in Jamaica (Cinchona). Originally 
described from Java. 
8. Syntherisma curvinervis (Hack.). 
Panicum curvinerve Hack. Oesterr. Bot. Zeitschr. 51: 335, 1901. 
A very slender erect annual, sparingly branching below, with narrow flat 
blades and about 3 slender racemes with minute glabrous strongly nerved 
spikelets. 
Sandy soil, Pinar del Rio, Cuba, whence described, the type collection, Wright 
1544, mixed with two other species, 
9. Syntherisma panicea (Swartz) Nash, N. Amer, Fl, 17: 152. 1912. 
Milium paniceum Swartz, Prodr. Veg. Ind. Oce. 24. 1788. 
Agrostis jamaicensis Poir. in Lam. Encycl. Suppl. 1: 258. 1810. 
Azronopus paniceus Beauv. Ess. Agrost. 12, 154. 1812. 
An erect slender glabrous or nearly glabrous perennial with simple culms, 
narrow blades, often involute and more or less curled in drying, and one to 
several slender racemes up to 12 cm. long. 
Open grassy places, subtropical Florida and the West Indies. Originally 
described from Jamaica. There is a slight uncertainty in the application of 
the name Milium paniceum. The original description applies to the species de- 
scribed above. The amplified description* also applies with the exception of 
“Raches 38-quetrae, margine membranaceae.” The rachis is only minutely 
margined. Because of this phrase Nash? has applied the name to S. longifiora 
which has a well-marked rachis margin. In many respects Swartz’s later de- 
scription does not apply to S. longiflora. There is no specimen of Milium pani- 
ceum in the Swartz Herbarium, but there are three specimens sent by Swartz to 
other herbaria, one at Munich, one at Madrid, and one in the De Candolle 
Herbarium. All these specimens are Syntherisma panicea as here understood. 
The habitat given by Swartz is “in aridis sabulosis Jamaicae australis”, while 
8S. longiflora is found in the wet mountain region. The latter species is intro- 
duced, probably at a recent date (as it was not known to Grisebach), while the 
other appears to be indigenous. This species resembles S. jfiliformis of the 
United States under which name Griesbach*® and Nash* include it, but differs 
in being apparently perennial and in having longer, more numerous racemes, 
longer folded or subinvolute blades, and slightly larger spikelets with longer 
pubescence. 
Bahamas (New Providence and Andros), Cuba, Jamaica, Haiti, Santo Do- 
mingo, and northern Porto Rico. 
10. Syntherisma leucocoma Nash, Bull. Torrey Club 25: 295. 1898. 
Similar to the preceding, on the average taller and stouter, the racemes 
longer, the spikelets larger and with dense soft silky hairs slightly exceeding 
the spikelet. 
Sandy woods and barrens, Florida and central and western Cuba. Described 
from Florida. 
11. Syntherisma villosa Walt. Fl. Carol. 77. 1788. 
7Panicum domingense Zuccagni in Roemer, Coll. Bot. 123, 1809. 
A tall slender annual or perennial, resembling the preceding but with hirsute 
foliage, the racemes at maturity more spreading, the pubescence of the spikelets 
short and crisp. 
* Fl. Ind. Oce. 1: 179. 1797. "FIL. Brit. W. Ind. 543. 1864. 
7N. Amer. Fl. 17: 152. 1912. “Fl N. Amer, 17: 150. 1912. 
