280 University of California Publications in Botany [VOL. 9 



Specimens examined. Mt. Rose, 10,000 feet, Kennedy 1151 ; about 

 Marlette Lake, east of Lake Tahoe, 2,460 m., Baker 1490 ; Mt. Stanford 

 (Castle Peak), Hooker and Gray in 1877; Silver Lake, Amador 

 County, 8,000 feet, Hansen 901; same locality, 7,200 feet, E. Mulli- 

 ken 149; Ebbett's Pass, Alpine County, 8,500 feet, Brewer 2082; 

 Ostrander's, above Yosemite, 8,000 feet, Bolander 6341; Tioga Eoad, 

 Yosemite, Congdon, August 29, 1895; Farewell Gap, Tulare County, 

 R. Hopping 79; Alta meadows, Tulare County, Mrs. Brandegee, 

 August 8, 1905. 



9. PTERYXIA 



1. Pteryxia californica Coult. and Rose, Contr. Nat. Herb., vol. 7, 

 p. 172. 1900. 



Type locality. "Sisson, Siskiyou County, Cal." 



Range. Mountains of northern California (southern Oregon?) 

 south in the Sierra Nevada to Tulare County. 



Zone. Transition and Canadian. 



Specimens examined. Sierra County, Lemmon 985; Cisco, Bolan- 

 der in 1872 ; near Castle Peak, Heller 7070 ; Summit, Kellogg ; Heather 

 Lake, Tahoe, 7,800 feet, McGregor 183; Desolation Valley, Tahoe, 

 8,600 feet, dry sandy places, Smiley 97 ; Ebbett's Pass, Alpine County, 

 dry hills, 9,000 feet, Brewer 1988 ; Tuolumne meadows, Yosemite, dry 

 gravel, 8,600 feet, R. A. Ware 2681c ; same locality, dry rocky ground, 

 8,500 feet, Smiley 706; Cloud's Rest, A. Gray in 1872; Crescent Lake, 

 Mariposa County, Congdon, August 14 (without year) ; Collins' 

 meadows, Fresno County, 7,500 feet, Hall and Chandler 541 ; Mineral 

 King, Coville and Funston 1392 ; Alta meadows, Tulare County, Mrs. 

 Brandegee, August 5, 1905; Farewell Gap, 10,600 feet, Purpus 5255; 

 same locality, 10,400 feet, Hall and Babcock 5664. 



The two specimens last cited present a form differing from the 

 normal by broader leaf segments, which are abruptly acuminate and 

 mucronate, and by reduced size of the whole plant, the two stations 

 are both arctic-alpine and these slight changes of character probably 

 represent the reaction of the species to the alpine habitat. 



10. DRUDEOPHYTUM 



Sterile rays of the umbel short (about % inch long) and stout; fruit small 



1. D. dementis 



Sterile rays of the umbel long (about % inch long) and slender; fruit larger 



2. D. vestitum 



