1922] 



PAYSON — STUDY OF THELYPODIUM AND ITS IMMEDIATE ALLIES 275 



Glabrous and glaucous, stout : leaves thick, not so deeply lobed 

 as in the species, the uppermost frequently nearly entire: sepals 

 white, about 5 mm. long; petals linear-spatulate, 6-12 mm. long; 

 filaments 7-10 mm. long, anthers apiculate : mature inflorescence 

 dense, pedicels curved upwards, 3-4 mm. long: pods erect or 

 strongly ascending, 2.5-6 cm. long, stipe 1-2 mm. long. 



Distribution: Idaho, northern Nevada, eastern Washington, 

 Oregon, and California. Type: Macbride 23 If. from New Ply- 

 mouth, Idaho. 



Specimens examined : 



Idaho: Shoshone, June 21, 1892, Mulford (Mo. Bot. Gard. 

 Herb.) ; New Plymouth, June 10, 1910, Macbride 234 (Mo. Bot. 

 Gard. Herb, and Rky. Mt. Herb., type) ; New Plymouth, May 

 2, 1911, Macbride 796 (Rky. Mt. Herb, and Mo. Bot. Gard. 



Herb.); Pocatello, 1912, Turesson 42 (Rky. Mt. Herb.); Arco, 

 Blaine County, July 8, 1916, Macbride & Payson 3094 (Rky. Mt. 

 Herb, and Mo. Bot. Gard. Herb.); Idaho Falls, June 19, 1920, 

 Payson & Payson 1798 (Mo. Bot. Gard. Herb.). 



Nevada: Simpson's Park, July 6, 1859, H. Engelmann (Mo. 

 Bot. Gard. Herb.) ; Sprucemont, July 22, 1891, Jones (Univ. 

 Calif. Herb.); Palisade, June 14, 1882, Jones 3772 (Clokey 

 Herb.) ; Reno, May, 1890, Sonne (Univ. Calif. Herb.) ; Carson 

 City, May 29, 1897, Jones (Mo. Bot. Gard. Herb.) ; Eagle Valley, 

 Ormsby County, June 7, 1902, Baker 1020 (Mo. Bot. Gard. 

 Herb, and Rky. Mt. Herb.). 



Washington: Yakima County, 1883, Brandegee 637 (Univ. 



Calif. Herb.) ; base of Rattlesnake Mountains, Yakima region, 



May 31, 1901, Cotton 391 (Rky. Mt. Herb, and Mo. Bot. Gard. 

 Herb.). 



Oregon : dry bottoms, Malheur County, June 21, 1898, Cusick 



1955 (Mo. Bot. Gard. Herb., Rky. Mt. Herb., and Univ. Calif. 

 Herb.). 



California : Great Basin, Sierra Valley, July, 1875, Lemmon 40 

 (Mo. Bot. Gard. Herb.). 



With a limited series of specimens this variety seems quite 

 distinct from the species because of the strongly ascending pods. 

 With a more complete series, however, it is impossible to draw 

 the dividing line definitely. In addition to this intergrading the 

 distribution is very similar and it is therefore thought best to re- 

 gard milleflorum as worthy of varietal distinction only. 



