PIPER—-FLORA OF THE STATE OF WASHINGTON. 149 
SPECIMENS EXAMINED: Wenache, Whited in 1895; North Yakima, Watt, July, 1895; Ophir, 
Elmer 512; Coupeville, Gardner 320, 334. 
ZONAL DISTRIBUTION: Transition and Upper Sonoran. 
The Agropyron glaucum of Suksdorf’s List is based on specimens of A. occidentale. 
11. Agropyron repens (L.) Beauv. Agrost. 102, 146. 1812. QUACK GRASS. 
Triticum repens L. Sp. Pl. 1: 86. 1753. 
Type Locaity: “ Habitat in Europae cultis.” 
SPECIMENS EXAMINED: Vancouver, Piper, July 20, 1897; Walla Walla, Leckenby, July 18, 
1899; North Palouse River, Vasey, July 3, 1901. 
HORDEUM. WILD BARLEY. 
Floret of the central spikelet pediceled; glumes ciliate.........-.---- 1. H. murinum. 
Floret of the central spikelet sessile; glumes not ciliate. 
Glumes all alike, subulate. 
Lateral florets long-awned. 
Awns 4 to 6em. long... 2.222222 ee ee ee ee ee ee ee eee 2. H. jubatum. 
Awns 2 to 3 em. long. 
Sheaths and blades glabrous. ...-.....------------ 3. H. caespitosum. 
Sheaths and blades pilose ........22-2.-----.---4-- 4. H. comosum. 
Lateral florets not awned. 
Lateral florets neutral.........----------- we ee ee eee eee 5. H. nodosum. 
Lateral florets perfect............---.---------------- 6. H. boreale. 
Glumes not all subulate, the inner ones obliquely lanceolate. -.--. - 7. H. geniculatum, 
1. Hordeum murinum L. Sp. Pl. 1: 85. 1753. WALL BARLEY. 
Type Locaity: “ Habitat in Europae locis ruderatis.” 
SPECIMENS EXAMINED: Seattle, Piper; Tacoma, Piper 2602; Ellensburg, Piper 2582; 
Waitsburg, Horner 246; Almota, Piper 3560; Wallula, Cotton 1045, 
2. Hordeum jubatum L. Sp. PI. 1: 85. 1753. SQUIRREL TAIL. 
Type Loca.ity: “ Habitat in Canada.” 
Rance: Alaska to Ontario, south to California and Kansas. 
SPECIMENS EXAMINED: Seattle, Piper in. 1889; North Yakima, Henderson 2208; Par- 
ker, A. D. Dunn, August 11, 1901; Pullman, Piper 1746; Spokane, Piper, June, 1897; 
Steptoe, Vasey 49. 
ZONAL DISTRIBUTION: Arid Transition and Upper Sonoran. 
3. Hordeum caespitosum Scribn. Proc. Davenp. Acad. Sci. 7: 245. 1899. 
Type LocaLiry: Edgemont, South Dakota. 
Rance: Washington to Assiniboia, Kansas, and Utah. 
SPECIMENS EXAMINED: Tacoma, Leckenby, June 3, 1898; Alma, Elmer 535; near Colum- 
bus, Suksdorf 218; without locality, Sandberg & Leiberg 245; Ephrata, Griffiths & Cotton 
463; Priest Rapids, Cotton 1384, 1404; Kiona, Cotton 718; Grand Coulee, Griffiths & Cotton 
445. 
ZONAL DISTRIBUTION: Arid Transition. 
4. Hordeum comosum Presl, Rel. Haenk. 1: 327. 1830. 
TyPE LOcALity: Chile. 
Rance: Washington. Chile. 
SPECIMENS EXAMINED: Alma, Elmer 535; Colville Reservation, Griffiths d& Cotton 363. 
ZONAL DISTRIBUTION: Arid Transition. 
5. Hordeum nodosum L. Sp. PI. ed. 2. 1: 126. 1762. 
TypE Locauity: ‘‘ Habitat in Italia, Anglia.” 
Rance: North temperate America, Asia, and Europe. 
