926 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
1. Axonopus deludens Chase, Proc. Biol. Soc. Washington 24: 134, 1911. 
Type locality, “Barranca near Guadalajara, Jalisco, Mexico, the type specimen 
collected by Pringle (no. 8761).’’ 
Rance: Known only from the type collection. 
2. Axonopus compressus (Swartz) Beauv. Ess. Agrost. 12. 1812. CARPET GRASS, 
Milium compressum Swartz, Prodr. Veg. Ind. Occ. 24. 1788. 
Type locality, ‘“‘Jamaica.”’ 
Rance: Tropics and subtropics of both hemispheres. 
HERBARIUM SPECIMENS FROM MExico: 
SrvaLoa: Culiacdn, abundant in underbrush along arroyos, Palmer 1760 in 1891. 
Cotma: Manzanillo, pasture, Hitchcock 7033. 
Veracruz: Cordoba, grassy bank, Hitchcock 6449; along cut, Hitchcock 6427; 
Kerber 38. Jalapa, clay cut, Hitchcock 6588. Veracruz, sandy prairie, Hitch- 
cock 6578. 
GUERRERO: Acapulco, Palmer 420 in 1895. 
3. Axonopus marginatus (Trin.) Chase. 
Paspalum marginatum Trin. Gram. Pan. 90. 1826. 
Type locality, ‘“‘Brasil.’’ The type specimen in the Trinius Herbarium is labeled 
“Tn pratis siccis glareosis 5. de Lapa. Brasil. Langsdorff.”’ 
RanGE: Southern Mexico to Paraguay. 
HERBARIUM SPECIMENS FROM MExico: 
Veracruz: Zacuapan, dry soil, Purpus 2450. Fortin, moist soil, Purpus 2155. 
Jalapa, clay cut, Hitchcock 6628. Mirador, Liebmann 203. 
4. Axonopus laxiflorus (Trin.) Chase, Proc. Biol. Soc. Washington 24: 133, 1911. 
Paspalum laxiflorum Trin. Mém, Acad. St. Pétersb. VI. Sci. Nat. 1: 148, 1834. 
Type locality, Serra da Lapa, Brazil. 
Rance: Southern Mexico to southern Brazil. 
HERBARIUM SPECIMENS FROM MExIco: 
Oaxaca: Between Guichocovi and Lagunas, Nelson 2738. 
5. Axonopus rosei (Scribn. & Merr.) Chase, Proc. Biol. Soc. Washington 24: 132. 
1911. 
Paspalum rosei Scribn. & Merr. U.S. Dept. Agr. Div. Agrost. Bull. 24: 9. /. 2. 1900. 
Type locality, ‘‘ Foothills of the Sierra Madre Mountains, between Pedro Paulo and 
San Blascito,’’ the type specimen collected by Rose (no. 1995). 
Known only from the type specimen. 
34. PASPALUM L. Syst. Nat. ed. 10. 855. 1759.1 
KEY TO THE SPECIES. 
Rachis with broad membranaceous wings more or less infolding 
the spikelets (or the latter, if not infolded, long-silky). 
Spikelets clothed with long silky hairs. 
Rachis 5 to 7 mm. wide, the margins rufous........... 5. P. stellatum. 
Rachis 2 to 3 mm. wide, the margins dull green or brown. 
Blades not ciliate; second glume and sterile lemma 
glabrous except for the long-ciliate margins... 6. P. cymbiforme. 
Blades papillose-ciliate on the margin; glume and 
usually the starile lemma pubescent on the 
back; plants tufted, producing stout running 
rootstocks......-2-........... eee e eee eeeeee 7. Phumboldt- 
tanum. 
