THE GRASSES OF BRITISH HONDURAS AND THE PETEN, GUATEMALA 161

 about 5 cm. long, ascending; spikelets 2 to 3 mm. long, acute, glabrous or
 somewhat appressed pubescent near the margins. Open fields, waste ground,
 and shady places, southern United States to Argentina.
 BRmTISH HONDURAS. Belize District: Gracie Rock, Gentle 1598. Toledo
 District: Temash River, Schipp 1370.
 GUATEMALA. Pet6n: Monte Polol, Lundell 3762.

 3. Axonopus rhizomatosus Swallen, Jour. Wash. Acad. Sci. 23: 458. 1933.
 Perennial with short scaly rhizomes; culms cmspitose, 45 to 85 cm. tall,
 with nodes pubescent; blades flat, as much as 25 cm. long, 1 to 4 mm. wide,
 the uppermost reduced, smooth or scaberulous, pilose toward the base;
 racemes 2 to 4, subdigitate, narrowly ascending, 5 to 13 cm. long; spikelets
 2.5 to 3 mm. long, densely pilose near the margins; fruit pale or lead-
 colored. Open pine woods, Guatemala, Honduras, and British Honduras.
 BRrrisH HONDUBAS. Belize District: Manatee Lagoon, Peck 464. With-
 out locality, Dunlop in 1920.
 4. Axonopus eiliatifolius Swallen. Jour. Wash. Acad. Sci. 23: 458. 1933.
 Perennial, with short scaly rhizomes; culms densely tufted, erect, 50 to
 70 cm. tall; blades flat, 7 to 16 cm. long, 1 to 2 mm. wide, pilose on both
surfaces, the margins papillose-ciliate toward the base; racemes 2 to 5,
ascending or appressed, 3 to 11.5 cm. long; spikelets 2 to 2.3 mm. long,
glabrous or sparsely pubescent; fruit dark brown, smooth and shining.
Known only from the type collection.
 BRITSH HONDURAS. El Cayo District: Mountain Pine Ridge, Bartlett
11746.

5. Axonopus pnrpusii (Mcz) Chase, Jour. Wash. Acad. Sci. 17: 144. 1927.
 Perennial; culms very slender, densely tufted, erect, 15 to 40 cm. tall;
leaves crowded toward the base, only one about the midculm, this with
elongated sheath and reduced blade; blades flat, conduplicate at the base,
mostly 5 to 10 mm. long, 1 to 2 mm. wide, sparsely pilose, the margins
scabrous; inflorescence terminal and axillary with 2 to 4 ascending racemes
as much as 8 cm. long; spikelets 2 mm. long, stiffly pilose at the tip and
near the margins. Wet savannas and open woods, Mexico to Argentina.
 GUATEMALA. Pet6n: La Libertad, Lundell 2302, 3639, 3678. Sabana
Zotz, Lundell 3594.
6. Axonopus poiophyllus Chasc, Proc. Biol. Soc. Washington 24: 133. 1911.
 Perennial, culms densely tufted, erect, as much as 80 cm. tall, the nodes
appressed hispid; blades flat, conduplicate at the base, firm, erect or some-
what spreading, 10 to 20 cm. long, 2 to 5 mm. wide, glabrous; racemes 2
to 6, erect or ascending, 10 to 15 cm. long; spikelets acute, rather distant,
3 mm. long, finely pubescent. Grassy hills, Guatemala, Honduras and
British Honduras.
 BRITISH HONDURAS. El Cayo District: Mountain Pine Ridge, Bartlett
11760.
 32. PASPALUM L.
Rachis winged, about 2 mm. wide .. ........_... .....-......-.. 1. P. pectinatnm
Rachis wingless or only narrowly winged, not more than 1 mm. wide.
 Racemes 2, conjugate (occasionally a third below).
 Spikelets elliptic, acute. Plants stoloniferous- ....- 2. P. vaginatum