380 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



EHODIXJM. 



1. Erodium cicutariuni (L.) L'Her.; Ait. Ilort. Kew 2: 414. 17S9. Alfilaria. 



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



Type locality: "Habitat in Europae sterilibus cultis." 



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

 tains, Cotton 337; Spokane, Lyall in 1861; Pullman, Piper, May, 1894; Hull 452; Clarks 

 Springs, Kreager 103, 573; Priest Rapids, Cotton 1389. 



Tliis plant has been common in western Washington for at least thirtj' years. 



OXALIDACEAE. 



OXALIS. 



Caulescent ; flowers yellow 1. 0. pumila. 



Acaulescent; flowers white. 



Scapes 1-flowered ; capsule ovoid 2. 0. orcgana. 



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



1. OxaHs pumHa Nutt.; Torr. & Gr. Fl. 1: 212. 1838. 



Oxcdis suJcsdorJii 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, Allen 84; Piper 2097; Tacoma, Flett 98; Cape Horn, 

 Sui'sdorf 2451 ; Ilwaco, Piper 4959. 



Zonal distribution: Humid Transition and Canadian. 



3. Oxalis trilliifoHa 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, SuJcsdorf 106. 



Zonal distribution: Canadian. 



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

 type locality is doubtless an error. 



LINACEAE. Flax Family. 



LINUM. 



Flowers large, blue. 



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



Perennial; stigmas short 2. L. lewisii. 



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



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



Type locality: European. 

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



