380 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
ERODIUM. 
1. Erodium cicutarium (L.) L’Her.; Ait. Hort. Kew 2: 414. 1789. ALFILARIA. 
Geranium cicutarium L. Sp. Pl. 2: 680. 1753. 
Tyree Locauity: ‘Habitat in Europae sterilibus cultis.” 
SPECIMENS EXAMINED: Olympic Mountains, J. M. Grant in 1889; Rattlesnake Moun- 
tains, Cotton 337; Spokane, Lyall in 1861; Pullman, Piper, May, 1894; Hull 452; Clarks 
Springs, Kreager 103, 573; Priest Rapids, Cotton 1389. 
This plant has been common in western Washington for at least thirty years. 
OXALIDACEAE. 
OXALIS. 
Caulescent; flowers yellow. ....-...-...---------- 2-2-2222 eee eee 1. O. pumila. 
Acaulescent; flowers white. 
Seapes 1-flowered; capsule ovoid............-.-.-.-.------------ 2. O. oregana. 
Scapes several-flowered; capsule linear .............-.-.--------- 3. O. trillisfolia. 
1. Oxalis pumila Nutt.; Torr. & Gr. Fl. 1: 212. 1838. 
Oxalis suksdorfi. Trelease, Mem. Bost. Soc. Nat. Hist. 4: 89. 1888. 
Type Locaity: ‘Forests of the Rocky Mountains and Oregon.” 
Rance: 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 Recky Mountains is surely an error. 
2. Oxalis oregana Nutt.; Torr. & Gr. Fl. 1: 211. 1888, 
TypE Locauity: ‘Shady woods of the Oregon in moist places.’”’ Collected by Nuttall. 
Rance: 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, 
Suksdorf 2451; Ilwaco, Piper 4959. 
ZONAL DISTRIBUTION: Humid Transition and Canadian. 
3. Oxalis trilliifolia Hook. Fl. Bor. Am. 1: 118. 1830. 
Type Locauity: “ 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. 
RaNnGE: 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. Tiax Faminy. 
LINUM. 
Flowers large, blue. * 
Annual; stigmas as long as the styles. ..... 2222222222 2202-2--- 1. L. usitatissimiun. 
Perennial; stigmas short.......-..........--. eee eee eee 2. L. lewisir. 
Flowers small, yellow; annual..................2....---.---.----- 3. L. digynum. 
1. Linum usitatissimum L. Sp. Pl. 1: 277. 1753. CoxMON FLAX. 
TyPE LocaLity: European. 
SPECIMENS EXAMINED: Pullman, Piper, July, 1895; Meyers Falls, Areager “76. 
