PIPER — FLORA OF THE STATE OF WASHINGTON. 109 



Specimens examined: DougIa.s County, ;iS'/)(7///(0«, May, 1886; Sayidberg d^ Leiberg, 240; 

 Wenache, Whited II30, 1229; North Yakima, Airs. Sieinwey; C'onnell, Leck-enhy, June, 

 1897: Spokane, Piper 2600; Pasco, Piper in 1897; Snipes Mountain, CoZ/o?), 379; Kittitas 

 County, Vasey 121; Eltopia, Cotton 1017: Ephrata. Griffiths d- Cotton •195; Brewster, 

 Gtifpths cfc Cotton 254. 



Zonal distribution: Upper Sononui. 



8a. Stipa comata intonsa subsp. nov. 



Dillers from S. comata in iu^ving the leaves densely puberuient. 



Specimens examined: Near Rockland, Klickitat County, iS'/A-w/or/" 1026, type. 



ORYZOPSIS. 



Low alpine species with narrow strict panicles. 



Awn of the lemma 3 to 4 mm. long 1.0. exigua. 



Awn of the lemma 10 to 12 mm. long 2.0. hendersoni. 



Tall lowland plants with loose panicles. 



Glumes ecjual, cuspidate ; awn 3 to 5 nun. long A. <). hymenoidt's. 



Glumes ecjual: awn 10 to 15 mm. long S. 0. bloomeri. 



1. Oryzopsis exigua Thurb. Bot. Wilkes Exped. 481. 1874. 

 Type locality: "Cascade Mountains, Oregon." 

 Range: Washington, Idaho, Oregon. 



Specimens examined: State of Washington, Sul'sdoif, in 1883; Cascade Mountains, 

 Kittitas County, Vasey 34. 



Zonal distribution: Hudsonian or Arctic. 

 This grass grows in granitic sand near timl)er line. 



2. Oryzopsis hendersoni Vasey, Contr. Nat. Herb. 1: 267. 1893. 



Type locality: "In Washington." Collected by Henderson (no. 2249). 



Range: Known only from the type collection. 



Specimens examined: Summit of Mount Cleman, Ileiuhrson 2249. 



3. Oryzopsis bloomeri (Boland.) Ricker. 



Stipa bloomeri Boland. Proc. Cal. Acad. 4: 168. 1872. 



Type locality: "Bloody Canon, near Mono Lake," California. 



Range: Washington to Montana and California. 



Specimens examined: Douglas County, Sandbery c£; Leibery 231. 



Zonal distribution: Arid Transition. 



4. Oryzopsis hymenoides (Roem. & Schult.) Ricker. 

 Stipa hymenoides Rocm. & Schult. Syst. 2: 339. 1817. 

 Eriocoma cuspidata Nutt. Gen. 1: 40. 1818. 



Stipa membranacea Pursh, Fl. 2: 728. 1814, not L. 1753. 



Oryzopsis membranacea Vasey, U. S. Dept. Agr. Div. Bot. Bull. 12: pi. 10. 1891. 



Eriocoma membranacea Beal, Grasses N. Am. 2: 232. 18S6. 



Oryzopsis cuspidata Benth; Vasey, U. S. Dept. Agr. Spec. Rep. 63: 23. 1883. 



Ty^pe locality: "On the banks of the Missouri." 



Range: British Columbia to California, east to Alberta and New Mexico. 



Specimens examined: Douglas County, *S'pi//wa«, May, 1896; Sandberg d; Leibery, 281: 

 Ellensburg, Piper, May, 1897; North Yakima, Henderson, May, 1892: Mrs. Steimrey in 1894; 

 Pasco, Piper 2964; Ilindshav) 33; Sunnyside, Cotton 416: Rattlesnake Mountains, Cotton 

 421; Walla Walla, Lyall, June, 1860; Sprague, Sandberg c& Leibery, June, 1893: Kittitas 

 County, Vasey 85; Wallula, Cotton 1030, 1048. 



Zonal distribution : Upper Souorau. 



