BOTANY. 



LIST OF PLANTS COLLECTED IH^ NEVADA, AEIZONA, AND 

 UTAH, UPON LIEUT. G. M. WHEELEE'S SUEVEY IN 1871 

 AND 1872. 



INTEODUCTION. 



The following report by Mr. Sereno Watson is upon the collections 

 made in the fleld-seasons of 1871 and 1872, by the collectors of Lieut, 

 George M. Wheeler^s geographical and geological survey, west of the 

 one-hnndredth meridian. 



Among those who were most active in collecting may be named Drs. 

 H. (J. Yarrow, W. S. Hoffman^ and Oscar Loew^ Messrs. Henshaw, 

 Bischoff, and Francis Klett, and others. 



This and the report of Dr. Eothrock are intended simply to be pre- 

 liminary to the more full and complete reports. 



The name of Mr. Watson is a sufficient guarantee for the accuracy of 

 the work intrusted to him. 



BOTANICAL REPORT 



BY SERENO WATSCN. 



CLE3IATIS LiGUSTiciFOLiA, Kutt. ISTevada, Utah, and Arizona. 



TnALiCTRr:M Fendleri, Engelm. Nevada and Utah. 



Thalictrum occideistale, Gray ('?), Fmc. Amer. Acad. 8. 372. 'Stam- 



iuate specimens were collected in the Wahsatch Mountains near Provo 

 City that may belong to this species. The foliage and habit are the 

 same as in the Oregon plants j panicle leafy j anthers long-mucron- 

 ate, as in T. Fendleri. 



EANUNt?ULUS Andersonti, Gray. Beltnont, JS'evada. 



Eanunculus Cymbalaria, Pursh. Utah. 



Aquilegia Canadensis, L. In the Southern Wahsatch. With the 

 short sepals of the eastern plant and with much more dissected and 

 smaller leaflets than the next. 



Aquilegia FORMOSA, Fisch. {A. Canadensis^ \iiv.formosa,TorT,) Dis- 

 tinguishable from the last by its elongated sepals, nearly or quite 

 equaling the spurs, and by its stouter habit, growing only on stream- 

 banks in the mountains and flowering from July to September. Ne- 

 vada and Utah ; ranging from the Kocky ]\Iountains to Oregon and 

 Sitka, but not found in California. 



Aquilegia c^erulea, James. Near Provo City, Utah, A reduced 

 form of this species, with bright blue flowers, was collected at Kanab 

 in Southern Utah, by Mrs. E. P, Thompson, in 1872. It has also 

 ■ recently been found in the Sierras near Mount Whitney. 



Aquilegia chrysantha, Gray, Froc. Amer. Acad. 8. 621. This plant 

 differs from A, ewrulea in its pure yellow flowers ^vith narrower sepals, 

 in its stouter and more branched habit, and in its much longer con- 

 tinuance in flower, blooming freely until September. Arizona. 



^i*v 



