62 University of California Publications. [botany 



and S. B. Doten, 247). Wawona, Mariposa Co., June 3, 1897 

 (J. W. Congdou). No locality (H. N. Bolander) distributed as 

 Stipa viridula Trin. (Three sheets.) 



The type is in the U.S. National Herbarium and a co-type 

 in the Herbarium of the University of California. 



This species is most closely related to Stipa Scrihneri Vasey, 

 being distinguished by its more interrupted panicles and much 

 longer awns which are pilose below, and in the fewer and shorter 

 hairs at the apex of the flowering glume. 

 Stipa Elmeri Piper tD Brodie, in U. S. Dept. Agr. Agros. Bull. 



xi.46 (1898). 



Collected only on the north side of the mountain at about 

 5000 ft. alt. (No. 2537.) 



Stipa occidentalis montana Merrill d- Ihiry, var. nov. Stipa 

 Occident all's Thurber, U. S. Geol. Expl. 40th Par. v. 380 

 (1871), in part. 



A slender densely tufted form, 2 to 5 dm. high with strict 

 few-flowered panicles and prominent twice- geniculate awns, 3 to 

 3.5 cm. long which are ciliate throughont with spreading or 

 ascending white hairs about 1 mm. long. 



Specimens examined all from California: 



Yosemite Trail, on loose, disintegrated granite, Aug. 20, 

 1866 (Dr. H. N. Bolander, no. 5038, type); same locality 

 (Bolander, no 29). Summit of Tahqnitz Peak, San Jacinto 

 Mountains, June, July, 1901 (H. M. Hall, no. 2325) ; rocky ridges 

 and peaks, 2700 meters (8800 ft.) alt. Soda Springs, Sierra 

 Nevada, 1881 (M. E. Jones, no. 283). Bear Valley, no date 

 (Dr. H. N. Bolander) . Long Meadow, Tulare County, July 7-14, 

 1888 (Dr. Ed. Palmer, no. 232). "In dry, sandy soil near 

 Ostranda's. >i< * * Quite common. Yosemite Trail, 8000 

 ft.," 1866 (Bolander, no. 5920). 



The type is in the U.S. National Herbarium, and co-tyi)e in 

 the Herbarium of the University of California. 



This variety is at once distinguished from the species by the 

 awn being pilose throughout, while in the species it is pilose 

 below, but only scabrous above the second geniculation. No. 

 5038 Bolander is the first specimen cited in the original descrip- 

 tion of Stipa occidentalis, but the description calls for a plant 



