1917] 
GATES—THE GENUS TRILLIUM 63 
Perces Co., June 3-4, 1896, A. А. Ё Е. G. Heller 3182 (Univ. 
Cal. Herb., 119597). 
Oregon: Yamhill River, Yamhill Co., May, 1879, Mrs. R. 
W. Summers (Univ. Cal. Herb., 72174). 
Washington: upper valley of the Nesqually, 1894, O. D. 
Allen 58 (Univ. Cal. Herb., 119596). 
California: near Marble Mountain, Siskiyou Co., alt. 6000 
ft., “10 feet from melting snow," June, 1901, H. P. Chandler 
1550 (Univ. Cal. Herb., 30088). The specimens on this sheet 
are minimum size, leaves 3X2 cm., stem 10 em., sepals 10 mm. 
long. Head of McCloud River, northeastern Shasta Co., 
June, 1903, Hall & Babcock 4134 (Univ. Cal. Herb., 54195) ; 
Moraga Valley, Contra Costa Co., Feb. 22, 1888, E. L. Drew 
(Univ. Cal. Herb., 13818) ; Mt. Tamalpais, Marin Co., April 
26, 1893, J. B. Davy 121 (Univ. Cal. Herb., 3989). This is maxi- 
mum size, leaves 14X11 cm., stem 52 ст. long, sepals 329 
mm. Same locality, Feb. 22, 1894, J. B. Davy 798 (Univ. Cal. 
Herb., 3988) ; Lagunitas Creek, Marin Co., March, 1896, Alice 
Eastwood (Univ. Cal. Herb., 3994); Sequoia Cafion, Marin 
Co., Jan. 31, 1892, Michener d Bioletti 21410 (Univ. Cal. 
Herb., 142147) ; west side of King’s Mountain, San Mateo Co., 
March 18, 1902, C. F. Baker 329 (Univ. Cal. Herb., 142146) ; 
Santa Cruz Mountains, March, 1896, М. S. Baker (Univ. Cal. 
Herb., 72280). 
The following range for var. stenosepalum can be deduced: 
western Montana and southern Washington to middle Cali- 
fornia (Santa Cruz Mountains). The type of T. ovatum is 
somewhat more northerly. 
26. T. nivale Riddell, Syn. Fl. West. States, 93. 1835; 
Baker, in Curt. Bot. Mag. pl. 6449. 1879; Selby, in Jour. Hort. 
Soc. 5: 36. pl. 3. 1890. 
This species is so distinct that it is impossible to confuse 
it with any other. It is probably a derivative from T. grandi- 
florum or from the species from which the latter was derived. 
The petals are said to be sometimes green,! or striped with 
1 Traill C. P. Studies of Plant Life in Canada, 36. 19060. 
