U. 8. GEOGRAPHICAL SURVEYS WEST OF THE ONE HUNDREDTH MERIDIAN. 
Ist Lizut. GEO. M. WHEELER, Corps or ENGINEERS, U. 8. ARMY, IN CHARGE. 
CHARTER LY. 
CATALOGUE 
PLANTS COLLECTED. 
NEVADA, UTAH, COLORADO, NEW MEXICO, AND ARIZONA, 
WITH 
DESCRIPTIONS OF THOSE NOT CONTAINED IN GRAY’S MANUAL OF THE NORTHERN U. 8., 
AND VOL. V, GEOLOGICAL EXPLORATION OF THE FORTIETH PARALLEL. 
BY 
J. T. ROTHROCK, 
SURGEON AND BOTANIST TO THE EXPEDITIONS OF 1873, 1874, AND 1875, 
AND THE FOLLOWING BOTANISTS: 
SERENO WATSON, CaMBRIDGE, Mass. GEORGE VASEY, M. D., AGricuLTuRAL DEPaRt- 
GEORGE ENGELMANN, M. D., Sr. Loum, Mo. MENT, WASHINGTON, D. C. 
Pror. THOS C. PORTER, Easton, PENN. Pror. D. C. EATON, YaLtr CoLitecr, New Ha- 
M. 8. BEBB, FountTainpDaLr, It iN, CONN. 
WM. BOOTT, Boston, Mass. THOS. P. JAMES, CamBringGer, Mass. 
Pror. EDWARD TUCKERMAN, Amuerst, Mass. 
