1922] 



PAYSON — STUDY OF THELYPODIUM AND ITS IMMEDIATE ALLIES 289 



(Univ. Calif. Herb, and Mo. Bot. Gard. Herb.) ; Candelaria, June 

 22, 1882, Jones 3775 (Mo. Bot. Gard. Herb.). 



California: Bishop, Owen's Valley, May 15, 1897, Jones (Mo. 

 Bot. Gard. Herb.); Silver Canyon, White Mountains, Inyo 

 County, May 7, 1906, Heller 8193 (Mo. Bot. Gard. Herb.). 



5. C. pUosus Wats. Bot. King's Exp. 27. 1871 ; Brewer & Wats. 

 Geol. Survey Calif. Bot. 1: 36. 1876; Coville, Contr. U. S. 

 Nat. Herb. 4: G2. 1893; Robinson in Gray, Syn. Fl. N. Am. I 1 : 

 173. 1S95; Howell, Fl. Northwest Am. 48. 1897. 



Biennial or short-lived perennial, sparingly pilose to densely 

 hirsute, especially near the base: radical- and lower stem-leaves 

 similar, petioled, oblanceolate in outline, coarsely toothed or pin- 

 natifid, acute or obtuse, 4-15 cm. long; upper cauline leaves re- 

 duced, sparingly pinnatifid to entire, narrowed to a slender base: 

 sepals green or purplish, more or less densely pilose, scarious mar- 

 gined, 5-8 mm. long; petals apparently white or veined with 

 purple, narrowly spatulate, crisped apex curved outwards, 7-10 

 mm. long; filaments slightly broader at the base, distinct, about 

 as long as the sepals, anthers somewhat apiculate, about 5 mm. 

 long; inflorescence racemose; pedicels ascending, 5-8 mm. long: 

 pods ascending or widely divaricate, frequently arcuate, 6-13 cm. 

 long, about 1.5 mm. in diameter, subsessile; style short, stigma 

 conspicuously 2-lobed: position of cotyledons and radicle in the 

 seed very variable, from completely incumbent to obliquely ac- 

 cumbent. 



Distribution: southwestern Idaho, western Nevada, eastern 

 Oregon, and eastern California. Type: Watson 113 from the 

 Truckee Valley, Nevada. 



Specimens examined: 



Idaho: Weiser, April 18, 1900, Jones 6170 (Mo. Bot. Gard. 

 Herb.); New Plymouth, May 21, 1910, Macbride 88 (Mo. Bot. 

 Gard. Herb.) ; Emmett, Canyon County, June 9, 1911, Macbride 

 883 (Mo. Bot. Gard. Herb, and Univ. Calif. Herb.). 



Nevada: Simpson's Valley, May 26, 1859, H. Engelmann (Mo. 

 Bot. Gard. Herb.) ; Candelaria, Shockley 5 (Univ. Calif. Herb.) ; 

 Candelaria, June 22, 1882, Jones 3777 (Mo. Bot. Gard. Herb.) ; 

 Gold Mountain, May-Oct., 1898, Purpus 5956 (Univ. Calif. 

 Herb.). 



Oregon : stony hillsides of Powder River near the mouth, June 

 3, 1901, Cusick 25^1 (Mo. Bot. Gard. Herb, and Univ. Calif. 



Herb.); hills near Malheur River, Malheur County, June 7, 



