THE GRASSES OF BRITISH HONDURAS AND THE PET9N, GUATEMALA 175

31. Panicum viscidelum Scrihn. U. S. Dept. Agr. Div. Agrost. Circ. 19: 2. 1900.
 Perennial; culms rather stout, erect to decumbent spreading, densely
pilose, with a glabrous often viscid ring below, the nodes bearded; sheaths
pilose to nearly glabrous; blades subcordate, 4 to 7 cm. long, 5 to 15 mm.
wide, acute, minutely pubescent or sometimes nearly glabrous, the white
cartilaginous margins shortly papillose-ciliate; panicles mostly 8 to 10 cm.
long, the branches ascending, implicate, usually densely flowered, especially
toward the base; spikelets 2 mm. long, pointed, pubescent. Pine woods,
rocky or gravelly banks and open ground, Mexico and Cuba to Colombia.
 BRITISH HONDURAS. El Cayo District: Mountain Pine Ridge, Bartlett
11759, 11831.

32. Panicum rudgei Roem. & Schult. Syst. Veg. 2: 444. 1817.
 Perennial; culms stout, erect, more or less zigzag, 30 cm. to more than
1 m. tall, papillose-hispid; sheaths overlapping or a little shorter than the
internodes, densely papillose-hispid with spreading hairs; blades 15 to 35 cm.
long, 5 to 8 mm. wide, acuminate, hirsute on both surfaces; panicles terminal
and axillary from the upper sheaths, dense, implicate; spikelets 3 to 3.5 mm.
long, more or less hispid. Savannas and open ground, British Honduras
and Jamaica to Brazil.
 BRITISH HONDURAS. Toledo District: Monkey River, Peck 588.

33. Panienm tuerckheimii Hack. Allg. Bot. Zeitschr. 12: 60. 1906.
 Perennial; culms erect, as much as 1 m. tall, the nodes appressed hispid;
sheaths as long as or longer than the internodes; blades 10 to 30 cm. long,
1.5 to 2.5 cm. wide, narrowed toward the base, the margins sparsely ciliate
at the base; panicles 15 to 30 cm. long, the branches rather distant, ascend-
ing, the lower ones as much as 15 cm. long; spikelets 3 mm. long, acumi-
nate, glabrous or sparsely pilose, usually in pairs, the first subsessile, the
second with a pedicel 2 to 3 mm. long. River banks, British Honduras and
Guatemala.
 BRITISH HONDURAS. Toledo District: Columbia Village, Rio Grande,
S.nart 41.

34. Panicnm hirtum Lam. Encycl. 4: 741. 1798.
 Annual; culms appressed-pilose, becoming decumbent spreading, rooting
at the nodes, the branches erect or ascending, 15 to 30 cm. long; sheaths
much shorter than the internodes, pilose; blades thin, cordate, 2 to 6 cm.
long, 8 to 15 mm. wide, sparsely pilose, the margins scabrous, papillose-
ciliate toward the base; panicles 5 to 7 cm. long, pyramidal, the branches
spreading; spikelets 1.2 to 1.4 mm. long, obliquely placed on the pedicels,
papillose-hirsute, the hairs spreading. Moist shady places, British Hon-
duras; Trinidad to Ecuador and Brazil.
 BRITISH HONDURAS. Belize District: Maskall, Gentle 979. El Cayo Dis-
trict: Duck Run, Bartlett 11533.

 34. ICHNANTHUS Beauv.
Appendages of the lemma well developed.
 Culms coarse, trailing, more than 3 m. long; blades attenuate
 pointed, 15 to 35 cm. long .---...--... ----.__ 1.. I. mexicanus
 Culms relatively slepder, less than 1 m. long; blades acute, 5 to
 15 cm long .... ....... ........ ...... _.. ._.. ..... 2. I. standleyi