243 Rydberg : Studies on the Rocky Mountain Flora 



shorter lobes to the leaves and their teeth are broadly ovate, ab- 

 ruptly acuminate, instead of lanceolate. The general habit is per- 

 haps more like G. cacspitosian James, but in that species the lower 

 part of the stem is grayish-pubescent with short reflexed hairs. 

 G. Pattersonii is a subalpine plant growing at an altitude of 2500- 

 3000 m. 



Colorado: Gray Peak, 1895, P. A. Rydberg (type in herb. 

 N. Y. Bot. Gard.); foot of Pikes Peak, 1896, C. L. Shear, ^702 ; 

 mountains, near Empire, 1892, H. N. Patterson, lyy and ij6 in 

 part ; North Cheyenne Canon, 1896, Ernest A. Bessey ; also 1845. 

 Free 1)10 lit, 61. 



Geranium strigosum sp. nov. 



Gcranuim Riehardsonii Wats. King's Rep. 5 : 49, in part. 

 1 87 1. Not Fisch & May. 



Erect perennial with a short thick rootstock : stem 4-8 dm. 

 high, finely reflexed strigose ; petioles of the basal leaves 2-5 dm. 

 long, also sparingly strigose ; blades reniform in outline, 7-12 cm, 

 in diameter, finely strigose on both sides, deeply 7-cleft ; divisions 

 rhombic in outline, 3-cleft and toothed; teeth lanceolate, acute; 

 stem leaves similar, but short-petioled ; stipules linear-lanceolate, 

 long-attenuate : inflorescence open, glandular pubescent : sepals 

 densely glandular, oval, about 8 mm. long ; bristle tips 1.5-2 mm. 

 long ; petals broadly obovate, rose color or light violet, strongly 

 purple-veined : style in fruit about 3 cm. long, beak about 6 mm.: 

 seeds reticulate. 



This is nearest related to G. viscosissiviuni, but the corolla is 

 lighter in color and the pubescence is different, being decidedly 

 reflexed, strigose, not at all glandular, except on the inflorescence. 

 It grows in the valleys to an altitude of perhaps 27CO m. 



Wyoming: Copperton, 1901, F. Ttveedy, 759/ (type in herb. 

 N. Y. Bot. Gard.); Big Horn Mountains, 1900,^^5^7. 



Utah: City Creek Canon, 1880, M. E.Jones. i8yi ; Parley's 

 Cafion, 1901, S. G. Stokes; Black Rock and Uintahs, 1869, S. 

 Watson, 204. 



Oxalis Coloradensis sp. nov. 



Perennial with a slender rootstock : stem slender, erect, 1-2 

 dm. high, sparingly villous ; leaves digitately ternate ; petioles 

 2-4 cm. long, sparingly villous : leaflets broadly obcordate, gla- 



