THE GRASSES OF BRITISH HONDURAS AND THE PETEN, GUATEMALA 179

5. Lasiacis sloanei (Griseb.) Hitchc. Bot. Gaz. 51: 302. 1911.
 Culms widely spreading or clambering with long flowering branches;
blades 8 to 15 cm. long, 1.5 to 3.5 mm. wide, ovate-lanceolate, bright green,
often very glossy; panicles pyramidal, 15 to 25 cm. long, the branches few,
stiffly ascending or spreading, the lower ones often 10 to 12 cm. long;
spikelets 4 to 5 mm. long, second, short-pedicellate, the pedicels appressed.
Dense brush and low woods, Mexico and the West Indies to Colombia.
 BRITISH HONDURAS. Orange Walk District: Honey Camp, Lundell 555.
 GUATEMALA. Peten: Uaxactun, Bartlett 12129.

6. Lasiacis papillosa Swallen, Carnegie Inst. Wash. Pub. No. 436: 349. 1934.
 Culms erect or clambering over brush, 1 to 2 m. long, densely papillose-
pilose with appressed hairs; blades ovate-lanceolate, 2 to 7 cm. long, mostly
10 to 15 mm. wide, conspicuously distichous, those of the young shoots
lanceolate, often much reduced; flowering branches strongly zigzag with
short internodes; panicles 5 to 12 cm. long, the few distant branches stiffly
spreading or reflexed, the lower 3 to 5 cm. long; spikelets 4.5 mm. long.
Brushy borders, southeastern Mexico and British Honduras.
 BRITISH HONDURAS. Corozal District: Corozal, Gentle 560. Orange
Walk District: Honey Camp, Lundell 91, 550. Belize District: Maskall,
Gentle 1218.

7. Lasiacis ruscifolia (H.B.K.) Hitchc. Proc. Biol. Soc. Washington 24: 145. 1911.
 Culms stout, usually freely branching; blades firm, asymmetrical, ovate-
lanceolate, mostly 5 to 10 cm. long, 1.5 to 4 cm. wide, clasping at the base,
softly pubescent, especially on the lower surface; panicles compactly flow-
ered, 4 to 10 cm. long (rarely longer); spikelets short-pedicellate, 3.5 to
4 mm. long. Brushy woods, Mexico and the West Indies to Paraguay.
 BRITISH HONDURAS. Corozal District: Port Sal, Lundell 4906; Gentle
104, 130. El Cayo District: El Cayo. Bartlett 11522.
 GUATEMALA. Peten: Lake Pet6n, Lundell 3861. Yaxha-Remate road,
Lundell 3862.

8. Lasiacis sorghoidea (Desv.) IIitchc. & Chase, Contr. U. S. Nat. Herb. 18: 16. 1917.
 Culms coarse, erect or clambering, usually freely branching, glabrous or
rarely somewhat pubescent; blades lanceolate, mostly 10 to 15 cm. long,
1.5 to 3 cm. wide (smaller on the branchlets), softly pubescent below,
pubescent and more or less scabrous above, or rarely nearly glabrous; pri-
mary panicles 15 to 30 cm. long, the branches single or in twos, stiffly ascend-
ing or spreading; spikzelets 4 mm. long, rather short pedicellate, usually
appressed to the branches. Brushy borders, Mexico and the West Indies to
Argentina.
 BRITISH HONDURAS. El Cayo District: El Cayo, Bartlett .11960, 12954.

 36. SACCIOLEPIS Nash
1. Sacciolepis myuros (Lam.) Chase, Proc. Biol. Soc. Washington 21: 7. 1908.
 Annual; culms erect, mostly 0.5 to more than 1 m. tall; blades flat, elongate,
usually not more than 3 mm. wide; panicles dense, spikelike, 10 to 20 cm.
long, 5 mm. thick; spikelets 2 mm. long, short-pedicellate, obscurely pointed,
the second glume and sterile lemma equal, strongly nerved, sparsely pilose