1922] 



PAYSON — STUDY OF THELYPODIUM AND ITS IMMEDIATE ALLIES 273 



lanceolate, 1-5 dm. long, irregularly and deeply lobed, lobes acute 

 or obtuse; cauline leaves petioled, the upper deeply pinnatifid 

 to subentire: sepals similar, pale, acute, 4—7 mm. long; petals 

 white, nearly linear, 7-21 mm. long, about 1 mm. broad ; filaments 

 slightly broadened at the base, 5-15 mm. long, anthers apiculate, 

 2-4 mm. long: inflorescence racemose, dense even when mature, 

 1-6 dm. long; pedicels stout, frequently flattened at the base, 

 horizontal, 3-5 mm. long: pods widely spreading or recurved, 

 3-10 cm. long, about 1 mm. wide, somewhat flattened parallel to 

 the septum; stipe 2-4 mm. long; style about 1 mm. long, stigma 



circular: seeds not winged. 



Distribution: Idaho, northern Nevada, eastern Washington, 

 and Oregon ; northeastern California. Type : Douglas from near 

 Walla Walla and at Priest's Rapid, Columbia River. 



Specimens examined: 



Idaho: Shoshone Falls, May 27, 1899, Trelease 3991 (Mo. Bot. 

 Gard. Herb.) ; Twin Falls and Shoshone Falls, July 25, 1911, 

 Nelson & Macbride 134.3 (Mo. Bot. Gard. Herb, and Rky. Mt. 

 Herb.); Shoshone Falls, June 11, 1912, Bennitt 156 (Rky. Mt. 

 Herb.) ; Twin Falls, May 13, 1912, Bennitt 39 (Rky. Mt. Herb.) ; 



about Lewiston, May 6, 1896, Heller & Heller 3022 (Univ. Calif. 

 Herb, and Mo. Bot. Gard. Herb.). 



Nevada: Palisade, June 14, 1882, Jones 3767 (Mo. Bot. Gard. 

 Herb., Rky. Mt. Herb., and Clokey Herb.) ; Pyramid Lake, 

 Washoe County, May 19, 1905, Kennedy 1003 (Rky. Mt. Herb.) ; 

 Pyramid Lake, June 1, 1913, Kennedy 1975 (Mo. Bot. Gard. 

 Herb, and Rky. Mt. Herb.); Carson City, May 29, 1897, Jones 

 (Rky. Mt. Herb.). 



Washington: Yakima Region, 1882, Brandegee 377 (Univ. 

 Calif. Herb.); Ritzville, June 8, 1893, Sandberg & Leiberg 190 

 (Mo. Bot. Gard. Herb.); Klickitat, 1879, /. Howell (Mo. Bot. 

 Gard. Herb.) ; dry cliffs near Columbia River, Klickitat County, 

 May 5-June, 1886, Suksdorf 841 (Mo. Bot. Gard. Herb, and 

 Univ. Calif. Herb.). 



Oregon: 1871, E. Hall 34 (Mo. Bot. Gard. Herb.); Barnhart, 

 May 30, 1886, Henderson 73 (Univ. Calif. Herb, and Mo. Bot. 

 Gard. Herb.) ; lone, Morrow County, July 13, 1903, Lunell (Rky. 

 Mt. Herb.); Pine Creek, Gilliam County, June 7, 1894, Leiberg 

 (Mo. Bot. Gard. Herb.) ; The Dalles, Aug., 1898, Savage, Cam- 

 eron & Lenocker (Mo. Bot. Gard. Herb.). 



California : near Yreka, Siskiyou County, May 23 , 1876, 

 Greene 803 (Mo. Bot. Gard. Herb.) ; hills west of Big Pine, Inyo 



