380 CONTBIBUTIONS FROM THE NATIONAL HERBARIUM. 



EHODIUM. 



1. Erodium cicutarium (L.) L'Her.; Ait. Hort. Kew 2: 414. 1789. Alfilaria. 



Geranium cicutarium L. Sp. PI. 2: 680. 1753. 



Type locautt: "Habitat in Europae sterilibus cultis." 



Specimens examined: Olympic Mountains, J. M. Grant in 1889; Rattlesnake Moun- 

 tains, CoUon 337: Spokane, Lyall in 1861; Pullman, Piper, M&y, 1894; Hull 452; Clarks 

 Springs, Kreager lOi, 573; Priest Rapids, Coiton 1389. 



This plant has been common in western Wivshington for at least thuty years. 



OXALIDACEAE. 



OXALIS. 



Caulescent ; flowers yellow 1. 0. jmmila. 



Acaule.scent ; flowers white. 



Scapes 1-flowered ; capsule ovoid 2. O. oregana. 



Scapes several-flowered ; capsule linear 3. 0. triUiifolia. 



1. OxaliB pumila Nutt.; Torr. & Gr. Fl. 1: 212. 1838. 



Oxalis sul-sdorjii Trelease, Mem. Bost. Soc. Nat. Hist. 4: 89. 1888. 



Type locality: "Forests of the Rocky Mountains and Oregon." 



Range: Washington to middle California. 



Specimens examined: Five miles north of Vancouver, Piper 4939. 



Zonal distribution: Humid Transition. 



Nuttall's statement that this occurs in the Rocky Mountains is surely an error. 



2. Oxalis oregana Nutt.; Torr. & Gr. Fl. 1: 211. 1838. 



Type locality: "Shady woods of the Oregon in moist places." Collected by Nuttall. 



Range: Washington to California in the coast region. 



Specimens examined: Montesano, Henderson, June, 1892; Skokomish Valley, Kincaid, 

 May, 1892; upper Nisqually Valley, AUen 84; Piper 2097; Tacoraa, Flett 98; Cape Horn, 

 Suitsdor/" 2451 ; Ilwaco, Piper 4959. 



Zonal distribution : Humid Transition and Canadian. 



3. Oxalis trilliifolia Hook. Fl. Bor. Am. 1: 118. 1830. 



Type locality: "North- West America, on the summits of the high mountains near the 

 Grand Rapids of the river Columbia; and also in the vallies of the Rocky Mountains." 

 Collected by Douglas. 



Range: Washington and Oregon in the coast region. 



Specimens examined: Upper Nisqually Valley, Allen 85; Longmire Springs, Piper 2096; 

 Puyallup, Flett, August, 1897; Larm River, Suksdorf 106. 



Zonal distribution: Canadian. 



As this species is known only west of the Cascade Mountains, the latter part of Douglas's 

 type locality is doubtless an error. 



LINACEAE. Flax Family. 



lilNUM. 



Flowers large, blue. ^ 



Annual; stigmas as long as the styles 1. L. vsitaiissimvw. 



Perennial; stigmas short 2. L. lewisii. 



Flowers small, yellow; annual 3. L. digynum. 



1. Linum usitatissimum L. Sp. PI. 1: 277. 1753. Common flax. 



Type locality: European. 

 Specimens examined: Pullman, Piper, July, 1895; Meyers Falls, Kreager 476. 



