MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 197 



Idaho: Sandberg, MacDougal & Heller, Nos. 47 and 175, 1892; Leiberg, No. 80, 

 1889i(?); L. F. Anderson, No. 2866, 1894; Sandberg, 1892. 



Utah: M. E. Jones, No. 1108, 1879. 



Montana: Rydberg ; Flodman, No. 596, 1896.' 



Wyom,ing: Avon Nelson, No. 1388, 1895 ;' No. 867, 1894 ;' No. 2639, 1896; F. H. 

 Knowlton, 1887. 



Drymocallis glutinosa Neo-Mexicana. 



Potentilla fissa var. major Gray, Mem. Am. Acad. 4: 41. 



Fully as stout as the typical form, but the leaves more hairy, the petals scarcely ex- 

 ceeding the sepals. 



This is a little known plant from New Mexico, resembling arguta in many respects, 

 but the region in which it grows is far outside of the range of that species as well as of 

 glutinosa. The first specimen mentioned below was included in Potentilla fissa var. 

 major by Gray and Lehmann, but it is doubtful if it belongs there. Gray suggests that 

 it may be a variety of P. arguta. 



New Mexico: A. Fendler, No. 197, 1847; W. A. Bell, 1867; Newberry in McComb's 

 Expedition. 



5. Drymocallis fissa (Nutt.). 



Potentilla fissa Nutt.; Torr. & Gray, Fl. N. Am. 1 : 446. 1840. 



Dietr. Syn. PL 3: 187; Walp. Rep. 2: 35; Ann. 2 : 477 ; Lem. Rev. Pot. 49. 



Hook. Journ. Bot. 6: 220; Gray, Am. Journ. Sc. (II.) 33: 411 (Repr. 22); Proc. 

 Acad. Phil. 1863: 61 ; Porter, U. S. Geol. Surv. 18T1 : 482. 



Potentilla arguta Porter & Coulter, Syn. Fl. Col. 36 (in part) ; Coulter, Man. Rocky 

 Mts. 83 (in part) ; Aven Nelson, Wy. Exp. St. Bull. 28 : 102 ; Coult. U. S. Geol. Surv. 

 1872 : 765. 



Potentilla glandulosa Wats. Proc. Am. Acad. 8 : 552 (in part). 1873. 



Coult. Man. Rocky Mts. 83 (in part). 



Potentilla scopulorum Greene, Erythea, 1 : 4. 1893. 



Illustration: Plate 106, f. 1, 2; dissection of flower,/. 3; stamens,/. J^; pistil, 

 /. 5 ; fruiting hypanthium and calyx, /. 6. 



Stem low, 2-3 dm., or sometimes 4 dm. high, very leafy and branched, glandular- 

 hirsute throughout. Stipules very wide, broadly ovate to subreniform, acute and gener- 

 ally deeply toothed. Basal leaves with short petioles, very veiny and slightly hairy on 

 both sides, or subglabrous above, pinnate ; leaflets, as a rule, 4 pairs, nearly orbicular, ex- 



1 Smaller form. 



