858 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
2. Olyra ciliatifolia Raddi, Agrost. Bras. 19. 1823. . 
Much smaller, the culms tufted, no strong main cane as in Olyra latifolia. 
Specimens of this Jacking the base resemble specimens of O. latifolia consisting 
of branches only, but may be distinguished by the smaller narrower panicle 
and pubescent fruit. 
Rich woods, Trinidad (Port of Spain) to Brazil. Originally described from 
Rio de Janeiro. Referred by Grisebach! to O. semiovata Trin. 
53. LITHACHNE Beauv. 
Plants monecious; spikelets in small axillary panicles, these with a single 
pistillate spikelet at the summit and 1 to several staminate spikelets below; 
terminal panicle if present wholly staminate; first glume of pistillate spikelet 
wanting; second glume and sterile lemma herbaceous, long-acuminate; fruit 
bony-indurate, laterally subcompressed, the lemma greatly swollen or gibbous 
on the back, the narrow palea slightly convex; staminate spikelets reduced to 
the lemma and palea. 
Blades 1.5 to 3 em. wide______-__.-----ee 1. L. paucifiora. 
Blades less than 5 mm. wide-____.------- 2. L. pineti. 
1. Lithachne pauciflora (Swartz) Beauv.; Poir, Dict. Sci. Nat. 27: 60, 1823. 
Olyra pauciflora Swartz, Prodr. Veg. Ind. Occ. 21. 1788. 
Olyra avillaris Lam. Encycl. 4: 547. 1797. 
Lithachne axillaris Beauv. Ess. Agrost. 166. pl. 24. f. 11. 1812. 
A tufted perennial, the slender hard culms geniculate and naked below, as- 
cending and leafy above, commonly 380 to 50 cm. tall, the flat asymmetrical 
rhombic-lanceolate acuminate spreading blades usually 5 to 8 cm. long, crowded 
toward the summit, the small axillary panicles produced from the upper sheaths. 
Moist woods up to about 2,000 meters, Mexico, Central America, and the 
West Indies. Originally described from Jamaica. eOlyra avillaris was described 
from Cayenne. In Cuba called “ pito enano,” 
Cuba, Jamaica, Porto Rico, Antigua, Guadeloupe, and Martinique. 
2. Lithachne pineti (Wright) Chase, Proc. Biol. Soc. Washington 21: 182, 1908. 
Olyra pineti Wright; Griseb. Mem. Amer. Acad. n. ser. 8: 532. 1862. 
A tufted perennial, with capillary culms about 20 ecm. long, naked below, 
bearing small flat reflexed blades above, the axillary racemes bearing 1 to 
few spikelets. 
Only known from the type collection, Wright 1536, from “ eastern Cuba.” 
54. RADDIA Bertol. 
Plants moneecious; staminate and pistillate spikelets in distinct small 
panicles, the staminate terminal or from the upper nodes, the pistillate axillary ; 
first glume of the pistillate spikelets wanting, the second glume and sterile 
lemma membranaceous, acuminate; fruit dorsally subcompressed, bony-indurate. 
Fruit pubescent; blades 5 to 7 cm. long____ --1. R. biformis. 
Fruit glabrous; blades not over 4 em. long. 
Blades about 3 cm. long; fruit 6 to 7 mm. long__________ 2. R. urbaniana. 
Blades 1 to 1.5 cm. long; fruit about 2 mm. long________ 3. R. nana. 
1. Raddia biformis sp. nov. 
Perennial, rhizomatous, 15 to 30 cm. high; culms cespitose, simple, slender, 
ascending or erect from strongly geniculate lower nodes, striate-sulcate, with a 
* Fl. Brit. W. Ind. 535. 1864. 
