MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 161 



PotcntUla Anserina sericea Koch, Syn. 213. 1837. 



Ledeb. Fl. Ross. 2 : 45 ; Walp. Ann. 2 : 513 ; Lehm. Del. Sem. Hort. Hamb. 1850 : 10. 



FotentiUa Anserina holosericea Gaud. Fl. Helv. 3: 405. 1828. 



Leaves silvery white-silky on both sides. 



In America it is confined to the Rocky Mountain Region from the Mackenzie and 

 Alaska to Ncav Mexico. Specimens examined : 



Northwest Territory: Miss E. Taylor. 



Assiniboiu: John Macoun, No. 10471, 1895. 



Washington: Wilkes' Expedition, No. 92. 



Oregon: J. S. Newberry (Williamson Exp.); Dr. Lyall, 1860; H. M. Cronkhite, 

 1864. 



California: S. B. Parish, No. 3154, 1894; Fremont (2d Exp.). 



Wyoming: H. Engelmann, 1856. 



Colorado: John Wolf (Wheeler Exp.), No. 382, 1873; G. E. Osterhout, 1893. 

 New Mexico: E. Palmer, 1869; Friese. 



Utah: M. E. Jones, No. 1453, 1880; L. F. Ward, No. 155, 1875. 

 Arizona: A. L. Anderson, 1863; Lemmon, 1884. 



Argentina Anserina grandis (T. & G.). 



Potentilla Anserina grandis Torr. & Gray, Fl. N. Am. 1 : 444. 1840. 



Ledeb. Fl. Ross. 2: 45; Lehm. Rev. Pot. 189; Del. Sem. Hort. Hamb. 1850: 10; 

 Lange, Consp. Fl. Groen. 5; Macoun, Cat. Can. PL 141; Rosenvinge, Fl. Groen. 655; 

 Walp. Ann. 2: 514. 



Rydb. Bull. Torr. Bot. Club, 24 : 18. 



Potentilla Padfica Howell, Fl. N. W. Am. 1 : 179. 1898. 



Leaves often 3-4 dm. long, erect; leaflets oblong, 4-7 cm. long. 



Growing in grassy places and quite common in Washington and British Columbia, 

 but extending into California and to the arctic regions. The following specimens have 

 been examined : 



Alaska: A. Kellogg, No. 190, 1867. 



British Columbia: John Macoun, 1889. 



Vancouver Island : Dr. Lyall, 1858; John Macoun, No. 178, 1893. 



Washington: Wilkes' Exp., No. 72; Dr. Scouler, No. 218; T. Howell, 1885; W. N. 

 Suksdorf, 1884. 



Oregon: T. J. Howell, 1882. 



California: H. N. Bolander; Mrs. R. M. Austin, No. 65, 1886. 



