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VOL. IV.] Lozver California Grasses. 39 r 



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 i 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 Wrightii 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". Wrightii. Fournier 

 enumerates twelve Mexican species of Epicampes but his 

 descriptions are so short or incomplete that it is very diSicult to 

 make positive determinations. — -Pescadero, September 23 (16). 



46. Deschampsia Pringlei Scribn. Proc. Acad. Phila. 

 (1891) p. 30o=No. 1429 Pringle 18S7. — La Chuparosa, (55). 



47. MiCROCHLOA SETACEA R. Br. — Kl Taste, September 



II (5). 



48. Chloris elegans HBK. — San Jose del Cabo, Sep- 

 tember 2 (6). 



49. IvEPToCHLOA MUCRONATA, Kunth. — San Jose del Cabo^ 

 September 2 (18). 



50. lyEPTOCHLOA viRGATA Beauv. var. mutica Fourn. PI. 

 Mex. Enum. Gram. 146. DiplacJine verticillata Nees & Mey. 

 Diplachne imbricata, Thurb.=No. 47, E. Palmer (1887) and 

 No. 331 (1886).— San Jose Del Cabo, September 2 (8). 



51. BouTELOUA ARiSTiDOiDES, Thurb. Diuebra arisiidoides 

 HBK. — Pescadero, September 23 (51). 



52. BouTELOUA CURTIPENDULA Gra}^ Cliloris ciirtipendiila 

 Michx. Bouteloua racemosa Lag. — El Taste September 11 (3). 



53. Bouteloua Americana Scribn. Proc. JVcad. Nat. Sci. 

 Phila. (1891) 306. Bouteloua bromoides Lag. Bouteloua Huni- 

 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 



