394 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Plants in large clumps with many sterile shoots, the culms less robust than 
in U. paniculata, 1 to 2 meters tall, the closely involute blades hard and very 
flexuous, the panicle stiffly erect, 40 to 60 cm. long, the slender stiff branches 
narrowly ascending. 
Rocky seacoast, West Indies. Originally described from Santo Domingo. 
Uniola racemiflora was also described from Santo Domingo; U. sparta was 
described from Cuba. 
Bahamas (New Providence, Eleuthera), Cuba (Punta Brava, Rugel 870), 
Jamaica (south coast), Haiti, Santo Domingo, Porto Rico (south coast and the 
island of Vieques), and St. Jan. 
98. DISTICHLIS Raf. 
Plants diccious; spikelets compressed, several-flowered, the glumes and lem- 
mas firm, keeled, the lemmas faintly many-nerved. 
1. Distichlis spicata (L.) Greene, Bull. Calif. Acad. 2: 415. 1887. Sart aRass, 
Uniola spicata L. Sp. Pl. 71. 1753. 
Distichlis maritima Raf. Journ. de Phys. 89: 104. 1819. 
A low erect smooth perennial, with long running rhizomes, slender culms, 
spreading firm involute blades, and small compact panicles, the spikelets about 
1 em. long. Extensive colonies of sterile plants may be recognized by the over- 
lapping sheaths and conspicuously closely distichous stiff blades. 
Salt marshes and alkaline meadows, United States, Mexico, and northern 
West Indies. Originally described from the Atlantic coast of North America, 
Distichlis maritima was based on Uniola spicata, though the specific name 
appears to have been taken from Uniola maritima Michx., which Rafinesque cites 
asasynonym. The latter is the same as Uniola paniculata L. 
Bahamas (New Providence, Watlings Island, Inagua) and Cuba. 
99. BRIZA L. 
Spikelets several to many-flowered, the florets crowded, almost horizontal; 
glumes and lemmas broad, subchartaceous, the margins scarious; palea much 
smaller than its lemma, 
Spikelets few, 1 em, wide________.____------- ee __._.1. B. maxima. 
Spikelets numerous, 0.5 cm. wide_.-____---__--- ee 2. B. minor, 
1. Briza maxima L. Sp. Pl. 70. 1753. 
Slender annuals 30 to 60 cm. tall with flat roughish blades and few-flowered 
panicles, the large handsome spikelets nodding on long capillary pedicels. 
Open ground and grass land, introduced occasionally in America. Originally 
described from Europe. Found in the Blue Mountains of Jamaica, especially 
around Cinchona. 
2. Briza minor L. Sp. Pl. 70. 1753. 
A weak-stemmed annual 30 to 50 cm. tall with thin flat scabrous blades and 
loosely flowered panicles, the branchlets subcapillary but stiffly spreading, the 
spikelets triangular-ovate, nodding. 
Open ground, sparingly introduced in America from Europe, whence originally 
described. Found in the Blue Mountains of Jamaica. 
100. DACTYLIS L. 
Spikelets 2 to 5-flowered, strongly compressed, subsessile in dense fascicles, 
these paniculate; glumes and lemmas keeled, mucronate, or the lemma awn- 
tipped. 
