]()g GRAIIINEAE 



1. 0. niiliacea Beutli. & Hook. Cnlnis erect from a decumbent base, 2 to 3 

 feet hii;-b; .slieaths smootb ; ligule about 1 line long: blades flat, 4 to 5 lines 

 wide; panicle as much as a foot long, loose, tlie branches spreading; glumes 

 li/> lines long, smooth, etiual ; lemma smooth. 1 line long, the deciduous straight 

 awn about 2 lines long. 



A native of Europe, introduced in a few localities in California, t'ahto, Men- 

 (h)cino Co., Davy 6624; Santa Barbara. Grant 53SS ; Los Angeles, McClatchie 



1222. 



Kefs. — Okyzopsis miliace.4. Bentli. & Hook.; Aschers. & Sebweinf. Mem. lust. Egypte 2: 

 169. 1887. Aflrostia miliacea L. Sp. PI. 61. 1753. 



2. 0. hymenoides Ricdcer. Culms eespitose. 1 to 2 feet high ; sheaths smooth 

 or minutely scabriuis: ligule about 3 lines long, acute; blades slender, elon- 

 gated, nearly as long as the culms; panicle diffuse, 3 to 6 inches long, the 

 slender branches in pairs, the branchlets dichotomous, all divaricately spread- 

 ing, the ultimate pedicels capillary, tiexuous, enlarged below the spikelets; 

 glumes equal, about 3 lines long, puberulent. papery, ovate, 3-nerved. abruptly 

 narrowed into an awn-like point; lemma fusiform, tnrgid, about 1X<> lines long, 

 nearly black at maturity, densely long-pilose with hairs IVi; lines long; awn 

 when present about 2 lines long, straight, readily deciduous. 



Deserts and plains of the southern portion of the state, rai-e northward to Mt. 

 Shasta {Ilall lO Bahvock 4093) ; Washington to i\Ianitoba, south to ilexico. 



'Rets. — Oryzopsis hymenoides Bicker; Piper, Gontr. Nat. Herb. 11: 109. 1906. Stipa 

 hymenoides Roera. & Schult. Syst. Veg. 2: 2.'59. 1817. Eriocoma cv.ipidata Nutt. Gen. 1: 

 40. 181S; Tliurb. in Wats. Bot.Cal. 2: 283. ISSO. 



3. 0. kingii Beal. Culms tufted, sleniler, 8 to 15 inches high; blades numer- 

 ous at the base of the plant, involute, capillary; ligide about 14 line long; 

 panicle narrow, h)ose, the short slender branches appressed or ascending, few- 

 flowered ; glnmes broad, papery, nerveless, obtuse, pm-ple at base, unequal, 

 the fir.st about 1% Hues long, the second a little longer; lemma elliptical, ly^ 

 lines long, rather sparingly appressed-pubescent, the callns short; awn more or 

 less sickle-shaped, bent in a wide curve or indistinctly geniculate below the 

 middle, not twisted, minutely pubescent, not readily deciduous, about I/2 iuch 

 long. 



Only kno^^'n from the high central Sierra Nevada. 



Locs. — Upper Tuolumne, Bolander 6097; Lyell Fork Canon, Hiichcock 32S9; Clouds Rest, 

 Congdon; Black Mt., Fresno Co., Hall 4~ Chandler 601. 



Eefs. — Oryzopsis kixgii Beal, Grasses N. Am. 2: 229. 1896. Stipa kingii Boland. Proc. 

 Cal. Acad. 4: 170. 1872, t3'pe from Mt. Dana, Bolander 6097 (the number given with the 

 original description is 6076, but all the oi-iginal specimens distributed under Stipa kingii 

 are numbered 6097, and this is the number found in Bolander "s Field Book for the Mt. Dana 

 collection of Stipa kiniiii); Thurb. in Wats. Bot. Cal. 2: 287. 1880. 



4. 0. webberil'.cnth. (_'ulms eespitose, erect, 6 inches to 1 foot high ; blades 

 involute, filiform, scabrous; panicle narrow, 1 to 2 inches long, the branches 

 appressed; glumes equal, narrow, obscurely 5-nerved, minutely seaberulous, 

 acuminate, about 4 lines long ; lemma narrow, 3 lines long, densely long-pilose, 

 the awn about 3 lines long, straight or bent, not twisted. 



Deserts and plains; Lassen Co. (Smoke Creek, Griffiths lO Hunter 48.5) to 

 Colorado. 



Refs.— Oryzopsis webberi Benth.; Vasej-, Grasses U. S. 23. 1SS3. Eriocoma tvehbcri 

 Thurb. in Wats. Bot. Cal. 2: 283. 1880, type from Sierra Valley, Bolander. 



5. 0. bloomeri Rieker. Culms tufted, 1 to 2 feet high, glabrous: sheaths 

 glabrous ; ligule about i/o line long ; blades crowded at the base, involute, nar- 



