54 BULLETIN 772, U. S. DEPARTMENT OF AGRICULTURE. 
Type species: Dissanthelium supinum Trin. 
Dissanthelium Trin., Linnza 10: 305. 1836. One species deseribed. 
Stenochloa Nutt., Journ. Acad. Phila. If. 1: 189. 1848. One species described, 
S. californica. 
Our Californian species, Dissanthelium californicum (Nutt.) 
Benth. (fig. 21), is an annual with flat blades and a narrow somewhat 
) open panicle. It isa rather 
yy rare species found in 
v7) southern California and 
4) the islands off the coast 
and has no economic value. 
The second species of 
the genus is Dissantheliium 
supinum Trin., a low 
tufted perennial, with nar- 
row, folded or convolute 
blades and short, densely 
flowered panicles. This is 
found on alpine summits 
in Mexico, Bolivia, and 
Peru. It has been called 
Deschampsia matthewsi 
Ball and Dissantheliwm 
sclerochloides Fourn. 
15. REDFIELDIA Vasey. 
Spikelets compressed, 
few-flowered, mostly 3 or 
4 flowered, the rachilla 
disarticulating above the 
glumes and between the 
florets; glumes somewhat 
unequal, 1-nerved, acumi- 
nate; lemma chartaceous, 
3-nerved, the nerves paral- 
lel, densely villous at base ; 
palea as long as the 
lemma; grain free. 
A rather tall perennial, 
with rhizomes and a large 
panicle with diffuse capil- 
lary branches. Species 
Fic. 21.—Dissanthelium californicum. Plant, X 33 ee sand hills of the 
spikelet,and floret, x 5. Great Plains. 
Type species: Graphephorum flecuosum Thurb. 
Redfieldia Vasey, Bull. Torrey Club 14: 133. 1887. One species described, 
R. fleruosa (Thurb.) Vasey. 
ian 
