170 GRAMINEAE 



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

 Daiji 7584; Snii Luis Oiiispo, Lemmon 4654. 



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

 JMoist groves. San Francisco Bay region: Oakland. Bohnidcr 6073; Stanford 

 University, Elmer 2103, 2133. 



Kefs.— Festuca elmeri Soribn. & 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 nest. 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, V/o to 4 feet liigli ; sheatlis nearly 

 smooth; blades flat, thin, 11/2 to 5 lines wide, aurieulate 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-iierved, somewhat keeled, attenuate into a scabrous awn 3 to 10 lines 

 h)ng. 



Jloist rocky woods and shady banks, Alaska to Montana and Wyonnng, south 

 to California. Jloulton. Warner I\Its.. Griffiths & Hunter 473; Sequoia Nat. 

 Park, Redwood Meadows, Hitchcock 3380. 



Bet's. — Festuca subul.\ta Trin. in Bong. Mem. Acad. St. Petersb. VI. Math. Phys. Nat. 

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



Subgenus IIesperociiloa Piper. Perennials, densely tufted but producing 

 occasional stout rhizumes or stolons. 



25. F. confinis Vasey. Culms stout, erect, glabrous, li/o to 3 feet high; 

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

 11/0 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 li/o 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, Sonne 11; Sau Gorgonio Mt., Abrams <)'■ McGregor 778, Hall 7621; Coon 

 Creek, San Bernardino Mts., Hall 7585. 



Ref. — Festuca confinis Vasey, Bull. Torr. Club 11: 126. 1884. 



(i2. BROMUS L 

 Si)il\elets few to maii.v-flowerctl. terete or flattened, in narrow or open pani- 

 cles. Glumes une(|ual, acute, 1 to 5-nerved. Lemmas convex or sharply keeled, 

 5 to !)-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 tlie 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. jB. madritcnsis. 



Awu 3 to 4 lines long. 



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



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



