with sufficient summer rain and winter snowfall to sup- 
port a shallow water vegetation. 
GRAMINEAE 
Festuca Kingii (S. Wats.) Cassidy in Colo. Agr. 
Expt. Sta. Bull. 12 (1890) 36. 
Fruiting heads of this grass were found in stratum VI. 
Poa Fendleriana (Steud.) Vasey in U.S. Dept. 
Agr., Div. Bot. Bull. 18, pt. 2 (1898) pl. 74. 
This grass was found in levels IV, V and VI of the 
Bat Cave deposit. 
Poa secunda Pres! Rel. Haenk. 1 (1830) 271. 
A sample of P. seeunda was among the grasses re- 
covered from strata III and LV. 
Elymus salina M. FE. Jones in Proc. Calif. Acad. 
Sci. ser. 2, 5 (1895) 725. 
Fruiting material was found in stratum VI. 
Sitanion Hystrix (Nutt.) J.G. Smith in U.S. Dept. 
Agr., Div. Agrost. Bull. 18 (1899) 15. 
This grass was also found represented only in stratum 
VI. 
Trisetum Wolfii Vasey in U.S. Dept. Agr. Month- 
ly Rept. Feb., March (1874) 156. 
Several specimens of 7. Wolfii were found in strata 
Vaan V1. 
Calamagrostis inexpansa 4. Gray Gram. and 
Cyp. 1 (1834) no. 20. 
C. inexpansa was found only in strata V and VI. 
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