1896. ] New North American Grasses. 135 
femota, superiora approximata, usque ad 4 pollices longa, 
2; pollices lata, basi subcordata, apice acuta, nervis pri- 
Mariis II-13, arcuatis, venulis transversis inter se anastomo- 
netvis venulis connectis. Palea angustissima, glumam 
hervis, angusta palea paulo brevior.—TZad. ; 
Faucibus, prope Cuernavaca, Morelos civitate. 20 Nov. 
(Pringle n, 5,961. 
The leaves of this well-marked species resemble in outline 
and venation those of some species of smilax. The. false 
Petioles consist of two parts, one an evident continuation of 
the leaf-sheath which occupies the greater part, and an upper 
pubescent part, which is manifestly a petiole-like downward 
rxtension of the blade. From this latter part arise the eleven 
'o thirteen primary nerves, like so many rays. The limits of 
these two parts of this false petiole are quite sharply defined, 
but there does not appear to be any point of articulation be- 
tween them. The pulvini at the base of the pseudo-petioles 
fause the leaves to diverge. : 
onthe Material in the National Herbarium does not accesses 
the parison with all the published species, and unfortunately 
© descr iptions of some of the species are too brief to be o 
a .value as means of identification. 
Cription 
rr specimens and publications, a brief characterization of the 
es 
sley himself om to Z. Galeottiana. nthe Index oo 
ugites Americana Rupr., not Willd., is referred to 4 
