344 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



1. Geum strictum Soland.: Ait. Hort. Kew. 2: 217. 1789. 

 Type locality: "North America." 



Range: British Columbia to Newfoundland, southward to Arizona, Missouri, and New 

 Jersey. 



Specimens examined: Along Tukanon River, Lake & Hull 516; nine miles southwest 

 Pullman, Piper. July 9, 1901. 



2. Geum macrophyllum Willd. Enum. 557. 1809. 

 Type lckality: "Camtsrliatca." 



Range: Alaska to California and Colorado, Siberia. 



Specimens examined: Clallam County, Elmer 2524; Montesano, Keller 3947; Cascade 

 Mountains, latitude 49°, Lyall in 1859; Silverton, BoucTc 53; Falcon Valley, SuJcsdorf288; 

 Skokomish Valley, Kincaid, May, 1892; Beaver Creek, Whited 192; Rock Lake, Lake & 

 Hull 515. 



Zonal distribution: Transition. 



This species is very close to if not identical witli Geum japonlcum Thunb. " 



3. Geum oregonense Scheutz, Nov. Act. Soc. Sci. Upsala 7: 26. 1869. 

 Type locality: "Habit, in regione Oregonensi." 



Range: Washington and Oregon to Montana. 



Specimens examined: Ellensburg, Whited 528(0: Spokane County, Suksdorf 289; 

 J/rs. Susan Tucker: Harrington, Sandherg d' Leiberg 219; Marshall Junction, Piper, July, 

 1896; without locality, Vasey in 1889: Clarks Springs, Kreager 39; Loon Lake, Beaftie dc 

 Chapman 2083. 



Zonal distkibltion: Arid Transition. 



SIEVERSIA. 



Flowers pale purplish ; styles plumose . \. S. ciliafa. 



Flowers yellow ; styles glabrous 2. S. rossii. 



1. Sieversia ciliata (Pursh). 



Geum ciliatum Pursh, Fl. 1: 352. 1814. 



Geum tnflorum Pursh, Fl. 2: 736. 1814. 



Type locality: "On the Kooskooskee." Collected by Lewis; the exact spot on the 

 Quamash Flats, now Weippe, Idaho. 



Range: British Columbia to Labrador, southward to Arizona, Missouri, and New York. 



Specimens examined: Clallam County, Elmer 2529; Olympic Mountains, J . M . Grant 

 in 1889; Whidby island, Gardner 105; Klickitat River, Flett 1324; Wenache, Whited 126, 

 1163; Ellensburg, Whited 731; Spokane, Dewart, May 6, 1901; Hangman Creek, Sandherg 

 & Leiberg 64; Pullman, Hull 517; Piper 1532; Clarks Springs, Kreager 22; Rattlesnake 

 Mountains, Cotton .554. 



Zonal distribution : Arid Transition. 



Dr. E. L. Greene has proposed a new genus for this species and its immediate allies, 

 Erythrocoma. A subspecies of S. ciliata, characterized by having the bractlets cut into 

 filiform segment is designated Erythrocoma ciliata ornata Greene. b 



2. Sieversia rossii R. Br. in Parry's 1st Voyage App. 276. 1824. 

 Geum rossii Ser. in DC. Prod. 2: 553. 1825. 



Type locality: Melville Island. 



Range: Arctic regions, south to Washington and Colorado. 

 Specimens examined: Mount Stuart, Elmer 245, 1182. 



Dr. Greene has recently proposed a new genus Acomastylis with this species as its type. 

 Elmer's number 1182 is considered a new species, A. depressa Greene. 



a Fl. Jap. 220. 1784. & Leaflets 1: 178. 1906. 



