392 Lower California Grasses. Rees 
repens HBK. as figured in Nov. Gen. Pl. t. 52. These species 
(Dinebra bromoides, D. repens and Bouteloua Humboldtiana) were 
united under Bouteloua bromoides Lag. by S. Watson in Proc. 
Amer. Acad. 1883, p. 177. Aristida Americana Sw., Obs. 41, t. 
ii, f. 2 (1791), cited by Kunth, is an older synonym, the specific 
name of which is taken up. 
. 54. BouTeLoua HirsuTA Lag.—El Taste, September 12 
(19). 
55. BOUTELOUA POL YSTACHYA Torr.—San José del Cabo, 
September 2 (39). 
56. PAPPOPHORUM MUCRONULATUM Nees. ?=No. 350 E. 
Palmer (1887). ‘This may be only a form of P. alopecurowdeum 
Vahl., but it differs from my West Indian specimens so ticketed, 
and it does agree very well with Doell’s figure and description of 
P. mucronulatum. It is not P. apertum Munro, Scribn. in Bull. 
Torr. Club, ix (1882) p.52. The following are some of the char- 
acters of the spikelets: Spikelets including the awns 11-12 
mim. long, with usually two perfect flowers and two to three 
empty glumes above. Lower empty glumes ovate lanceolate, 
bristle-awned between the two unequal teeth at the apex, the 
second about 5 mm. long, a little exceeding the first. Flowering 
glumes broad and rounded on the back, about 3 mm. long to 
base of awns, densely pilose on the short and obtuse callus and 
on the midnerve below the middle and on the sides half way 
up, pubescent on the inner face above, 7-nerved. Awns 12-15, 
the longer ones 8-9 mm. diverging, violet-colored, strongly sca- 
brous. The upper empty giumes with a villous tuft on the back 
below the middle, sides and callus naked.—Guaymas Mexico, 
November 7 (76). 
AT 
Cae LITTORALIS Engelm,—Pescadero, Sep- 
tember 23. (Mixed with No. 35). 
ERAGROSTIS PLUMOSA Link. Poa tenella. Kunth. Revis, 
Gram. ii. 467, t. 147, not Linn. Zvagrostis ciliaris var. patens 
Chapm.—San José del Cabo, September 2 (9). 
59. Lragrostis major Host.—El Taste, September 11 (37)- 
60. LEvagrostis lugens Nees.—La Chuparosa, October 17 (78)- 
“61. ERAGROSTIS NEO-MEXICANA Vasey. I have this from 
