GRAMINEAE 



variety was referred to A. depressa Vasey, by Hitchcock, U. S. Dept. Agr. Bur. PI. Ind. Bull. 

 68: 28. 1905, and to A. alba L. var. stolonifera " Auct. ", by Davy in Jepson, Fl. W. Mid. Gal. 

 43. 1901. 



4. A. glomerata Kunth. Culms erect, 8 to 12 inches high, scabrous below 

 panicle ; sheaths conspicuously striate, often inflated ; panicle close and spike- 

 like, % to 3 inches long, the large forms more or less lobed; glumes 1% lines 

 long, sharp-pointed but usually not awned ; lemma 1 line long, awnless or with 

 a straight or bent awn from the middle of the back, the callus hairs short; 

 palea % line long, 2-nerved. 



Along the coast from Mendocino Co. to Monterey; also Vancouver Island, 



Oregon and Peru. 



Locs. Mendocino, Pringle; Ft. Bragg, Bolander 6466, Davy # Blasdale 6167; Pt. Arena,. 

 Davy $ Blasdale 6025; Pt. Keyes, Davy 6746, 6793; Pacific Grove, Hitchcock 2607. 



Kefs. AGROSTIS GLOMERATA Kunth, Enum. PI. 1: 219. 1833. Vilfa glomerata Presl, ReL 

 Haenk. 1: 239. 1830. Agrostis calif ornica Trin. Mem. Acad. St. Petersb. VI Sci. Nat. 4 1 : 

 359. 1840; Thurb. in Wats. Bot. Cal. 2: 273. 1880, under A. exarata. A. mucronata [Presl,. 

 misapplied by] Thurb. in Wats. Bot. Cal. 2: 272. 1880. A. densiflora Vasey, Contr. Nat.. 

 Herb. 3: 72. 1892, type from Santa Cruz, Anderson; Davy in Jepsop, Fl. W. Mid. Cal. 43. 1901. 



5. A. exigua Thurb. Annual; culms delicate, 1 to 4 inches high; panicle 

 % the length of plant, finally open ; glumes % line long, scaberulous ; lemma 

 equaling the glumes, bearing below the tip a slender awn 4 times as long ; palea. 

 wanting. 



Only known from the type collection, "Foothills of the Sierras," Bolander* 

 Eef. AGROSTIS EXIGUA Thurb. in Wats. Bot. Cal. 2 : 275. 1880. 



6. A. hallii Vasey. Culms erect, stout, 2 to 3 feet high, bearing rhizomes; 

 ligule usually conspicuous ; panicle 4 to 5 inches long, narrow, open ; glumes 

 about 2 lines long; lemma awnless, 1% lines long, with a tuft of hairs at base 

 about % as long; palea wanting. 



Mostly in woods, near the coast from Santa Barbara (Hitchcock 2580) to Del 

 Norte Co. (Davy & Blasdale 5918) ; north to Oregon. 



Var. pringlei Hitchc. Differs from A. hallii in the narrower and more com- 

 pact panicles, narrower and more involute blades and the more stramineous, 

 appearance of the whole foliage. Near the coast, Mendocino Co. : Mendocino,. 

 Congdon, Davy & Blasdale 6075 ; Pt. Arena, Davy & Blasdale 6030. 



Eefs. AGROSTIS HALLII Vasey, Contr. Nat. Herb. 3: 74. 1892. A. davyi Scribn. U. S.. 

 Dept. Agr. Div. Agrost. Circ. 30: 3. 1901, type Davy # Blasdale 6062. Var. PRINGLEI Hitchc. 

 U. S. Dept. Agr. Bur. PI. Ind. Bull. 68: 33. 1905. A. pringlei Scribn. U. S. Dept. Agr. Div. 

 Agrost. Bull. 7: 156. 1897, type from Mendocinc Co., Pringle. 



7. A. pallens Trin. Culms 8 to 15 inches high, erect, from creeping rhi- 

 zomes; panicle contracted, almost spike-like, 2 to 4 inches long; glumes 1*4 

 to 1% lines long; lemma a little shorter than the glumes, awnless, the hairs a 

 base minute; palea wanting. 



Sandy soil near the coast, Marin Co. to Del Norte Co., north to Washington 

 Locs. Crescent City, Davy $ Blasdale; Pt. Eeyes, Davy 6682, 6839, 6880; Lands End, Da 

 Refs. AGROSTIS FALLENS Trin. Mem. Acad. St. Petersb. VI. Sci. Nat. 4 1 : 328. 1840; Thu 

 in Wats. Bot. Cal. 2 : 273. 1880, under A. exarata. 



8. A. foliosa Vasey. Differs from A. pallens in the taller culms, and more 

 open panicles, the branches rather stiffly ascending; lemma awnless (in most of 

 the California specimens) or with a straight or rarely a bent awn. 



Meadows and open woods, from Humboldt Co. south along the coast, in the 

 Sierra Nevada to Mariposa Co.. and in the San Jacinto Mts. Extends north to. 

 British Columbia. 



