170 



GRAMINEAE 



Gatos Heller 7471; Santa Cruz, Anderson; Tassajara Hot Springs, Elmer 3322; Templeton, 

 Uavy 7584; San Luis Obispo, Lemmon 4654. 



Var. luxurians Piper. Panicle rather close; spikelets 5 or 6-flowered. 

 Moist groves, San Francisco Bay region : Oakland, B dander 6073 ; Stanford 

 University, Elmer 2103, 2133. 



Refs. FESTUCA ELMERI Scribn. & Merr. Bull. Torr. Club 29: 468. 1902, type from Stanford 

 University, Elmer 2101. Var. LUXURIANS Piper, Contr. Nat. Herb. 10: 38. 1906, based on 

 the next. F. jonesii Vasey var. conferta Hack. ; Beal, Grasses N. Am. 2 : 593. 1896, type from 

 San Jose Normal School, collector unknown. , 



24. F. subulata Trin. Culms scaberulous, l 1 /^ to 4 feet high ; sheaths nearly 

 smooth; blades flat, thin, l 1 /^ to 5 lines wide, auriculate at base, usually sca- 

 brous on both surfaces, lax and spreading ; panicle very loose, somewhat droop- 

 ing, 6 to 15 inches long, the branches mostly in pairs, naked below; spikelets. 

 3 to 5-flowered ; glumes subulate ; lemmas membranaceous, narrowly lanceo- 

 late, 3-nerved, somewhat keeled, attenuate into a scabrous awn 3 to 10 lines 

 long. 



Moist rocky woods and shady banks, Alaska to Montana and Wyoming, south 

 to California. Moulton, Warner Mts., Griffiths & Hunter 473; Sequoia Nat. 

 Park, Redwood Meadows, Hitchcock 3380. 



Kefs. FESTUCA SUBULATA Trin. in Bong. Mem. Aead. St. Petersb. VI. Math. Phys. Nat. 

 2: 173. 1832. F. pauciflora [Thunb. misapplied by] Thurb. in Wats. Bot. Cal. 2: 318. 1880. 



Subgenus HESPEROCHLOA Piper. Perennials, densely tufted but producing 

 occasional stout rhizomes or stolons. 



25. F. confinis Vasey. Culms stout, erect, glabrous, 1% to 3 feet high; 

 sheaths smooth, striate ; blades firm, flat or loosely involute, coarsely striate, 

 114 to 3 lines wide; panicle narrow, erect, 3 to 8 inches long, the branches 

 short and appressed, floriferous nearly to base; glumes broadly lanceolate, 

 subscarious, nearly smooth, the first 1^ to 2 lines long, the second a half 

 longer ; lemmas ovate, acuminate, convex, faintly nerved, scabrous all over the 

 back, 21/2 to 4 lines long. 



Dry meadows and hills; San Bernardino Mts., north to Oregon and east to 

 Montana and Colorado. 



Locs. Truckee, Sonnc 11; San Gorgonio Mt., Abrams <$ McGregor 778, Hall 7621; Coon 

 Creek, San Bernardino Mts., Hall 7585. 



Kef. FESTUCA CONFINIS Vasey, Bull. Torr. Club 11: 126. 1884. 



62. BROMUS L. 



Spikelets few to many-flowered, terete or flattened, in narrow or open pani- 

 cles. Glumes unequal, acute, 1 to 5-nerved. Lemmas convex or sharply keeled, 

 5 to 9-nerved, usually 2-toothed at apex and awned from between the teeth, 

 sometimes awnless, the awn straight or divergent, sometimes twisted. Annuals 

 or perennials with usually flat blades, and rather large spikelets. Species 

 about 100, mostly in the north temperate zone. (An ancient Greek name for 

 the oat.) 

 Plants annual. 



Panicle contracted, dense. 

 Awn 8 to 11 lines long. 



Culm pubescent below panicle 11. B. rubens. 



> Culm smooth 9. B. madritensis. 



Awn 3 to 4 lines long. 



Awn divaricate ; second glume 3-nerved 8. B. scoparius. 



Awn straight; second glume 5 to 7-nerved 4. B. hordeaceus. 



