PIPER—FLORA OF THE STATE OF WASHINGTON. 321 
1. Heuchera glabra Willd.; Roem. & Schult. Syst. 6: 216. 1820. 
Heuchera divaricata Fisch.; Ser. in DC. Prod. 4: 51. 1830. 
Tiarella colorans Graham, Edinb. New Phil. Journ. 7: 349. 1829, 
Tyre LocaLiry: Western North America. 
Rance: Alaska to Oregon. 
SPECIMENS EXAMINED: Snoqualmie, Parker, August, 1892; Mount Rainier, Smith, 
August, 1890; Piper 2027, 548; Goat Mountains, Allen 194; Baldy Peak, Lamb 1377; 
Mount Adams, Suksdorf 546; Skamania County, Suksdorf 968; Peshastin, Sandberg & 
Leiberg 485; Bridge Creek, Elmer 674. 
ZONAL DISTRIBUTION: Hudsonian. 
2. Heuchera micrantha Dougl.; Lindl. Bot. Reg. 15: pl. 1302. 1829. 
Heuchera barbarossa Presl, Rel. Haenk. 2: 56. 1835. 
Type Locatiry: ‘“Mountainous woods, near the Grand Rapids [Cascades] of the Colum- 
bia.’’ Collected by Douglas. 
RanGE: British Columbia to north Idaho and California. Mexico. 
SPECIMENS EXAMINED: Clallam County, Elmer 2651; Snoqualmie, Parker, August, 1892; 
Skokomish Valley, Kincaid, May, 1892; upper Nisqually Valley, Allen 10; Silverton, Bouck 
71a: Peshastin, Sandberg & Leiberg 485; Columbia River, Barclay; west Klickitat County, 
Suksdorf, June, 1874; Union City, Piper in 1890. 
ZONAL DISTRIBUTION: Humid Transition and Canadian. 
Two forms occur, one with the petioles very villous, the other having them nearly glabrous, 
The former seems to be the typical HW. micrantha Dougl., but Rydberg @ has recently con- 
sidered it a distinct species, naming it 7. nuttallii. 
3. Heuchera racemosa 8S. Wats. Proc. Am. Acad. 20: 365, 1885. 
Tellima racemosa Greene, Erythea 3:55, 1896. 
Type Locauity: “On cliffs of Mt. Adams, Wash., at 7-8000 ft. altitude.” Collected by 
Suksdorf. 
Rance: Washington. 
SPECIMENS EXAMINED: Olympic Mountains, Piper 2215, 913; Clallam County, Elmer 
2641: Mount Rainier, Piper 2032; Allen 196; Mount Adams, Suksdorf, July, 1883; Hender- 
son 2490: mountains north of Ellensburg, Brandegee 765; Nason Creek, Sandberg & Leiberg 
662; Bridge Creek, Elmer 689. 
ZONAL DISTRIBUTION: Arctic. 
This species forms the type of the genus Elmera proposed by Rydberg.? 
4. Heuchera glabella Torr. & Gr. FI]. 1: 581, 1540. 
Heuchera cylindrica glabella Wheelock, Bull. Torr. Club 17: 203. 1890. 
Type Locauty: “Rocky Mountains towards Oregon.” Collected by Nuttall. 
Rance: Eastern Oregon to Montana and northward into British Columbia. 
SPECIMENS EXAMINED: Sprague, Henderson, May, 1892; Spokane County, Suksdorf 299 , 
Blue Mountains, Piper, July, 1896; Pullman, Piper 1497; without locality, Vasey in 1889; 
Clarks Springs, Kreager 71; Chelan Butte, Cotton 188. 
ZONAL DISTRIBUTION: Arid Transition. 
4a. Heuchera glabella columbiana (Rydberg). 
Heuchera columbiana Rydberg, N. Am. FI. 22?: 116. 1905. 
Type LocALity: “Near Swan Lake, Washington.”” Swan Lake iserroneous, the locality 
being Loon Lake, Stevens County. 
Differs from H. glabella principally in the hirsute stems and petioles. 
SPECIMENS EXAMINED: Clarks Springs, Beattie & Chapman 2019; Loon Lake, Winston, 
July 20, 1897; Ellensburg, E7mer 419; Wenache Mountains, Whited 1134. 
aN. Am. Fl. 22?:103. 1906. bN. Am. FI. 22?:116. 1906. 
29418—06 mM——-21 ; 
