54 
BULLETIN 772, IT. S. DEPARTMENT OE AGRICULTURE. 
Type species: Dissanthelium supinum Trin. 
Dissantheliuin Trin., Linn^a 10 : 305. 1836. One species described. 
Stenochloa Nutt., Journ. Acad. Phila. II. 1: 189. 1848. One species described, 
/S. caUfomica. 
Our Calif ornian species. Dissanthelium calif ornicum (Nutt.) 
Benth. (fig. 21). is an annual with flat blades and a narrow somewhat 
open panicle. It is a rather 
rare species found in 
southern California and 
the islands off the coast 
and has no economic value. 
The second species of 
the genus is Dissanthelium 
s u p i n u m Trin., alow 
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 
Desckampsia matthe wsii 
Ball and DissantheUum 
sclerochloides Fourn. 
15. Redfikldia Vasey. 
Spikelets compressed, 
few-flowered, mostly 3 or 
4 flowered, the rachilla 
disarticulating above the 
glumes and between the 
florets: gluines somewhat 
unequal. 1-nerved, acumi- 
nate: lemma chartaceous, 
3-nerved. the nerves paral- 
lel, densely villous at base ; 
p a 1 e a as 1 o n g as the 
lemma : grain free. 
A rather tall perennial, 
with rhizomes and a large 
panicle with diffuse capil- 
lary branches. Species 
one; sand hills of the 
Great Plains. 
Fig. 21. — DissantheUum calif ornicum. 
spikelet and floret, X 5. 
Plant, X i 
Type species: Graphephorum flexuosum Thurb. 
Redfieldia Vasey, Bull. Torrey Club 14: 133. 1887. One species described, 
R. flexuosa (Thurb.) Yasey. 
