592 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Ranoe: Washington and Oregon to Colorado. 



Specimens examined: Olympic Mountains, F/«/< 130; Mount Rainier, Piper 2159; Goat 

 Mountain, Allen 137; Mount Adams, Svksdorf 5&3; Howell; Loomis, Elmer 582; without 

 locality, Vasey 536; Wcnache Mountains, Cotton 1653. 



Zonal distribution: Hudsonian. , 



7. Amica pedunculata Rydberg, Bull. Torr. Club 24: 297. 1897. 

 Arnica morwcephala Rydberg, Mem. N. Y. Bot. Card. 1: 435. 1900. 

 Type locality: Spanish Basin, Montana. 



Range: Washington to Montana. 



Specimens examined: Mountains north of Ellensburg, Whited 719; Wenache Moun- 

 tains, Whiied 1137; Spangle, Piper, May 24, 1901; Rock Lake, Sandberg d; Leiberg 103; 

 Pullman, Piper 1578; Elmer 875; Spokane, Dewart. 



This species is in habit just like the plant referred to A. fulgens Pursh, but that has 

 horizontal rootstocks, while this has a cormose base covered with pale reddish tomentum. 

 This difTerence may not prove constant, and needs further examination in the field. Both 

 the species here mentioned have been referred to ..4. alpina Olin, which, in its typical form at 

 least, does not occur in Washington. 



8. Arnica fulgens Pursh, Fl. 2: 527. 1814. 

 Type locality: "On the banks of the Missouri." 

 Range: British Columbia to Montana and Oregon. 



Specimens e.xamined: Republic, Beattie dc Chapman 264; Goat Mountains, Allen 229; 

 Cascade Mountains to Colviile, Lyall in 1860; Wenas and Umtanum creeks, Cotton 1148; 

 Ellensburg, Piper 2677; Whited 542, 649; Spokane, Piper, July 2, 1896; Sprague, Ilender- 

 son 2279; Waitsburg, Horner 598; Pullman, Piper, June 13, 1894. 



Zonal distribution. Arid Transition. 



9. Amica aurantiaca Gieene, Toireya 1:42. 1901. 



Type locality. "At tlie head of Keystone Creek, Wallowa Mountains, Oregon, at 

 about 7,000 feet." Collected by Cusick. August, 1900. 

 Specimens examined: Goat Mountains, Allen 229 



10. Arnica ample xicaulis Nutt. Trans. Am. Phil. Soc. 7: 408. 1841. 



Arnica amplexifolius Rydbeig, Mem. N. Y. Bot Gard. 1: 434. 1900 (February 15). 

 Type locality: "On the rocks of the Wahlamet at the Falls," Oregon. 

 Range: Washington and Oregon. 



Specimens examined: Cape Horn, Piper 4962, 5009; Olympic Mountains, Piper 2204; 

 Fletl 818;. Mount Rainier, Allen 285a; Skagit Pass, Lake & Hull 738. 



11. Amica macounii Greene, Pittonia 4: 160. 1900 (Decembor 8). 

 Type locality: " Near Coniox, Vancouver Island." 



Specimens examined: Skokomish River, Piper 1074; Coast Mountains, Cooper; Cas- 

 cade Mountains, 49°, Lyall in 1859; White Salmon, Sukidorf 28; Lake Cushman, Kincaid, 

 June 15, 1892; Olympic Mountains, Piper, August, 1895; Mount Stuart, Elmer 1194; 

 Bridge Creek, Elmer 672; Lake Wenache, Sandberg cfc Leiberg 633. 



This species differs from A. amplexicavlis only in its narrow leaves, a character far from 

 constant. 



12. Amica aspera Greene, Ottawa Nat. 16: 281. 1902. 

 Type locality: Mount Rianier. Collected by Greene. 

 Specimens examined: Mount Rainier, Greene, August 20, 1889. 



This species is closely allied to the Alaskan A. chamissonis Less., but the pubescence is 

 much harsher. 



13. Amica mollis Hook. Fl. Bor. Am. 1: 231. 1839. 

 Type locality: "Alpine rivulets of the Rocky Mountains." 

 Range: British Columbia to Quebec, south California, and Colorado. 



