VOL, Iv.] Lower California Grasses. 391 
panicle 1-2 feet long caudate, branches slender, erect, spreading, 
the lower 6 inches long, rather densely flowered; spikelets sub- 
racemose along the branches, nearly 1 line long; empty glumes 
unequal, the first about % the length of the second which nearly 
equals the flowering glume; flowering glume smooth barely 
acute, awnless, callus naked. 
This grass is closely allied to Sporobolus Wrightti Scribn. (in 
Torr. Bull. ix, 103) but is apparently even more robust, panicle 
more elongated, branches and pedicels more slender and scabrous 
and spikelets smaller. It is possibly Epicampes expansa Fourn. 
but it certainly is as good a Sporobolus as S. Wrightiz. Fournier 
enumerates twelve Mexican species of Epicampes but his 
descriptions are so short or incomplete that it is very difficult to 
make positive determinations.—Pescadero, September 23 (16). 
46. DESCHAMPSIA PRINGLEI Scribn. Proc. Acad. Phila. 
(1891) p. 300=No. 1429 Pringle 1887.—La Chuparosa, (55). 
47. MICROCHLOA SETACEA R. Br.—El Taste, September 
rt (5). 
8. CHLORIS ELEGANS HBK.—San José del Cabo, Sep- 
tember 2 (6). 5 
49. LEPfOCHLOA MUCRONATA, Kunth.—San José tag Cabo, 
September 2 (18). 
50. ee VIRGATA Beauv. var. MUTICA Fourn. Pl. 
Mex. En am. 146. Déplachne verticillata Nees & Mey. 
Diplachne 5 iiaite Thurb.No. 47, E. Palmer (1887) and 
No. 331 (1886).—San José Del Cabo, September 2 (8). 
51. BOUTELOUA ARISTIDOIDES, Thurb. Dinebra aristidoides 
HBK.—Pescadero, September 23 (51). 
52. BouUTELOUA CURTIPENDULA Gray. Chloris curtipendula 
Michx. Bouteloua racemosa Yag.—El Taste September 11 (3). 
53. BourELovuA AMERICANA Scribn. Proc. Acad. Nat. Sci. 
Phila. (1891) 306. Bouteloua bromoides Lag. Bouteloua Hum- 
boldtiana Griseb.—La Honda October 21 (59). The details of 
the spikelets in this specimen agree with the figure of Dinebra 
bromoides HBK. Nov. Gen. t. 51.— El Taste, September 11 (25). 
In this the characters of the spikelets are those of Dinebra 
