216 University of California Publications in Botany [VOL. 9 



Carson Pass, 8,700 feet, Brewer 2101 ; head of Tuolumne River, 9,000 

 feet, Brewer 1759 ; Bloody Canon, Mono County, 8,500 feet, R. A. Ware 

 2642c; Cloud's Rest, E. R. Drew, July 25, 1887; Eagle Peak, Yosem- 

 ite, 7,700 feet, Hall 9195; Mt. Gibbs, dry rocks on west side, 10,200 

 feet, Smiley 765 ; Glacier Point, Congdon, July 1, 1885 ; Volcano Creek, 

 Tulare County, 8,000 feet, Hall and Babcock, 5308; near Mineral 

 King, Coville and Funston 1488; Langley's Camp, Mt. Whitney, 

 11,700 feet, Hall and Babcock 5549; Mt. Guyot, Tulare County, 12,100 

 feet, H. M. and G. R. Hall 8422; Mt. Silliman, Tulare County, Mrs. 

 Brandegee, August, 1905. 



The high mountain form of this species with a thick woody base 

 was first described by Kellogg as the var. glandulosa and the type was 

 " Collected on Stanford Peak, C. P. R.R., at an altitude of 10,000 feet 

 July 29th, 1870." It is this same form which Heller subsequently 

 described as H. lithophila. Seen by itself by one who knows the 

 appearance of typical H. rubesc-ens, this subalpine plant appears quite 

 distinct enough to justify its separation but when a large suite of 

 specimens are available for comparison, they are seen to constitute a 

 single specific unit. 



4. MITELLA 



Petals cuneate, deeply 3-lobed at the apex 1. M. trifida 



Petals pinnatifid with slender segments. 



Stamens opposite the petals, alternate with the sepals 2. M. pentandra 



Stamens alternate with the petals, opposite the sepals 3. M. Breweri 



1. Mitella trifida Graham, Edinb. New Phil. Jour., vol. 7, p. 185. 



1829. 

 Ozomelis pamfica Kydb., N. Am. Fl., vol. 22, p. 95. 1905. 



Type locality. Not given ; plants described were raised in England 

 from seed collected by Drummond at some indeterminate locality. 



Range. British Columbia east to Alberta and Saskatchewan, and 

 south to the northern Sierra Nevada. 



Zone. Canadian. 



Specimen examined. Nelson Creek, Plumas County, 5,700 feet, 

 Hall 9357. 



2. Mitella pentandra Hook., Bot. Mag., vol. 56, pi. 2933. 1829. 



Pectiantia pentandra (Hook.) Rydb., N. Am. Fl., vol. 22, p. 93, 1905. 

 Pectiantia latiflora Eydb., I.e. 



Type locality. Not given; plants described were raised in Eng- 

 land from seed collected by Drummond in "Rocky Mountains of 

 North America." 



