314 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Rance: Washington to Montana and Colorado. 
SPECIMENS EXAMINED: Mount Rainier, Allen, August 20, 1895. 
6. Saxifraga mertensiana Bong. Mem. Acad. St. Petersb. VI. 2: 141. 1832. 
Saxifraga heterantha Hook. Fl. Bor. Am. 1: 252. 1833. 
Type Locauity: “Sitcha,’’ Alaska. 
Rance: Alaska to Idaho and the Blue Mountains; north California. 
SPECIMENS EXAMINED: Clallam County, Himer 2643; Chehalis County, Lamb 1348; Cas~ 
cade Mountains, latitude 49°, Lyall in 1859; Mount Rainier, Allen 17; Goat Mountains, 
Allen 241; Falcon Valley, Suksdorf 14; rocks of the Columbia, Nuttall; Blue Mountains, 
Horner; Cape Disappointment, Scouler. 
ZONAL DISTRIBUTION: Canadian, 
Smalle considers that two species have been confused under the above, which he dis- 
tinguishes as Heterisia mertensiana and H. eastwoodiae, the former with bulblets in the 
inflorescence, the latter without. Both occur in Washington, and careful field study is 
needed to determine if the character relied upon is really specific. 
7. Saxifraga odontophylla sp. nov. 
Perennial by stout rootstocks, not bulbous, entirely glabrous up to the inflorescence; 
leaves all basal, reniform-orbicular, somewhat fleshy, coarsely and evenly dentate with 15 
to 25 teeth, 2 to 8 cm. broad; petioles usually 2 to 3 times as long as the blade; scapes 
10 to 40 em. high; inflorescence a loose, erect panicle, glandular; bracts linear, the lower 
more or less dentate or occasionally foliaceous; pedicels slender; calyx 5-parted, the lobes 
oval, obtuse, 2 mm. long, reflexed in anthesis; petals white, orbicular and unguiculate, 
longer than the calyx; filaments spatulate, acuminate; ovary free; capsules usually purple, 
somewhat inflated, 7 to 8 mm. long, cleft to the middle, the beaks becoming divaricate. 
This species has long passed in American herbaria as S. punctata L., a rare European species. 
Among American species it can only be confused with S. nelsoniana Don, which is a smaller 
plant with lobed rather than dentate leaves, pubescent stems and inflorescence, elliptical 
unclawed petals, and a more or less condensed flower cluster. S. odontophylla ranges 
from British Columbia to New Mexico and California. 
SPECIMENS EXAMINED: Olympic Mountains, Piper 2213; Elmer 2639; Mount Rainier, 
Piper 2025; Flett 236, 278; Cascade Mountains, latitude 49°, Lyall; Cascade Mountains 
above Stampede Tunnel, Henderson in 1892; Mount Adams, Suksdorf 544; Wenache Moun- 
tains, Whited 255; Silverton, Bouck 72a; Mount Stuart, Sandberg & Leiberg 570 (type); 
Stevens Pass, Sandberg & Leiberg, August, 1893; Blue Mountains, Piper, July 17, 1896; 
above Lake Chelan, Wilcox in 1883; without locality, Vasey in 1889. 
ZONAL DISTRIBUTION: Arctic and Hudsonian. 
The type is in the National Herbarium, sheet no. 289646. 
8. Saxifraga nelsoniana D. Don, Trans. Linn. Soc. 18: 355. 1822. 
Saxifraga punctata nelsoniana Engler, Verh. Zool. Bot. Ges. Vienna 19: 548. 1869. 
TYPE LocALity: Cape Newnham, Alaska. 
Rance; Alaska to Washington. 
SPECIMENS EXAMINED: Olympic Mountains, Piper 2214; Elmer 2640; Mount Rainier, 
Allen 16; Piper 2040; Smith, August, 1890; Cascade Mountains, latitude 49°, Lyall in 1859; 
Stevens Pass, Piper, July 7, 1895; Horseshoe Basin, Lake & Hull, August 24, 1892; Bridge 
Creek, Elmer 716. 
The Lyall specimen is peculiar and is referred here with doubt. It has the leaves doubly 
dentate, scarcely cordate, pubescent on each side, perhaps viscid. It may be referable per- 
haps to S. mertensiana. 
ZONAL DISTRIBUTION: Arctic. 
aN. Am. Fl. 227: 156. 1905. 
