30 BOTANY. 
Ertocoma cuspipata, Nutt. Gen. 1, p. 40. 
‘ Stipa membranacea, Pursh. Hook. Fl. Bor.-Am. 
_ Fendleria #ynchelytroides, Steud. Lyn. Pl. Glum_Z, p. 419. Moqui country; May 8. 
_ MUBLENBERGIA VIRESCENS, Z'rin. Agrostid. 2, p. 57. San Francisco Prairie and Leroux’s 
Spring; April 26. ° 
MUBLENBERGIA DEBILIS, Trin. Agrostid. 2, p. 49. 
M. purpurea, Nutt. Pl. Gamb., p. 186. Riverside mountain; January 25; also January 13. 
SPOROBOLUS CRYPTANDRUS, Gray. Man. ed. 2, p. 542. ‘ 
Agrostis cryptandrus, Torr. Ann. Lyc. N. Y. 1, p. 151. Camp 17; January 17. 
PHRAGMITES CoMMUNIS, Z'rin. Fund. 134. 
Arundo phragmites, Zin. Reedy Bend; January 15. ‘‘Grows as far north as mouth of 
Little Colorado, but smaller northward.’’ 
Cuoris ALBA, Presl.; Rel. Haluk. 1, p. 289. Growing in tufts near the water’s edge, on the 
abrupt sandy banks of the Colorado; November 25; also at Riverside mountain; July 24. 
BovureLona potystacuya, Torr. in Williamson’s Rep., p. 336, tab. X. Chondrosium polysta- 
chyum, Benth. Bot. Sulph., p. 56. Camp 17; January 17. 
BoureLona oLicostucuya, Torr.; Gray, Man. ed. 2, p. 553. Banks of Little Colorado; May 1. 
** Large grama grass.’’ ; 
BouTeLona ERIOPODA, Torr. in Emory’s Rep., p. 154. (sub Chondrosium.) Little Colorado; 
May 1. ‘Small grama grass.’’ 
BOUTELONA CURTIPENDULA, Gray, Man. ed. 2, p. 553. On rocks; March 31. Yampai creek. 
LEPTOCHLOA FASCICULARIS, Gray, l. c., p. 550. Purple Hills; January 13. This seems to be 
quite common along the Colorado. All of our specimens from there have the panicle more 
densely flowered than in the ordinary state of the species. 
TRICUSPIS PULCHELLA, Torr. in Whip. Rep., p. 156. 
Uralepis pulchella, Kunth. Gram. 1, p. 108. Bill Williams’s Fork; Feb. 1. ‘‘ Growing in 
tufts on desert surfaces and hill tops all along the Colorado.”’ 
Eragrostis Pursau, Schrad. Gray, l. c., p. 564. Long Valley, Camp 62. 
Mewica mmperrecta, Trin.; Torr. in Whip. Rep., p. 151. Laguna, California; November 17. 
Fragmentary specimens of what appear to be this species, to which M. panicoides, Nutt. Pl. 
Gamb., probably belongs. 
ScLEROCHLOA CaALiForNIcA, Munroe in Pl. Hartweg., p. 342. Yampai creek, Camp 65, and 
April 23. This seems to be a very common grass in the country between the Rio Grande and 
the Colorado. 
FESTUCA TENELLA, var. ARISTULATA, Torr. in Whip. Rep., p. 156. Yampai valley and Moqui 
country; March and May. 
BRIZOPYRUM sPicaTUM, Hook. & Arn. Bot. Beechy, p. 403. 
- Uniola stricta, Torr. in Ann. Lyc. N. Y. 1, p. 155. Very abundant in the saline soils of 
the far west, and in exceedingly variable species. The Uniola stricta of Torrey was founded 
upon a very rigid form, with elongated many-flowered, shining spikelets; our very full suite of . 
specimens connect this with the ordinary form. The wiry foliage of this species is, in many 
localities, the only pasturage. 
Bromus. A specimen collected at Sitgreaves’s Pass may be a new species, but we do not 
are to add names in a family where they are far too numerous, without further comparison. 
_ Horprum susatum, Lin.; Kunth. Enum. 1, p. 457. Moqui country; May 8. All over the 
Colorado country. 
_ Imperata arunpinacea, Cyrill, Kunth., l. c., p. 477. Along the Colorado generally. This 
widely distributed grass was collected on the Rio Grande by Dr. Bigelow and Mr. Wright, and 
8 also in Drummond’s Texan collections. 
