GRASS FAMILY 163 



Alkaline soil, Dakotas to California and Texas. 



Locs. Warner Mts., Griffiths $ Hunter 390; Honey Lake Valley, Davy; Livermore Pass, 

 Davy; Ft. Tejon, Davy 2367; Santa Ana, Bradshaw ; San Bernardino Mts., Parish Bros. 1559; 

 San Diego, G. E. Vasey. 



Ref s- PUCCINELLIA NUTTALLIANA Hitchc. Poa nuttolliana Schult. Mant. 2 : 303. 1824, based 

 on Poa airoides Nutt. Puccinellia airoides Wats. & Coult. in Gray, Man. ed. 6. 668. 1890. 

 Poa airoides Nutt. Gen. PI. 1 : 68. 1818, not Koeler, 1802. 



3. P. festucaeformis Parl. Culms in small tufts, rather stout, iy 2 to 2 feet 

 high; leaves scattered, smooth, the blades loosely involute, more or less spread- 

 ing; panicle narrow, 4 to 6 inches long, the branches appressed, the lower as 

 much as 3 inches long; spikelets about 4 lines long; glumes nearly equal, 

 3-nerved. narrow, about 1% lines long; lemmas 2 lines long, smooth. 



Saline soil near the coast, California to Alaska. ' Pt. Reyes, Davy 6749 ; San 

 Mateo Co., Jaffa in 1900. 



Eefs. PUCCINELLIA FESTUCAEFORMIS Parl. Fl. Ital. 1 : 368. 1848. Poa festucaeformis 

 Host. Gram. Austr. 3: 12. 1805. 



4. P. angustata Nash. Culms erect, tufted, about 1 foot high; blades in- 

 volute, erect, smooth ; panicles narrow, 2 to 3 inches long, the branches about 

 1 inch long, appressed ; spikelets about 3 lines long ; glumes 3-nerved, the first 

 1 line, the second l 1 /^ lines long; lemmas l 1 /^ lines long, sparingly pubescent 

 at base, especially on the lower part of the rather prominent marginal nerves. 



Saline soil, Mendocino Co. (Ft. Bragg, Davy & Blasdale 6126) to Alaska; also 

 on the Atlantic Coast from Connecticut northward. 



Kefs. PUCCINELLIA ANGUSTATA Nash, Bull. Torr. Club 22: 512. 1895. Poa angustata 

 E. Br. App. Parry's Voy. 287. 1824. 



5. P. simplex Scribn. Apparently annual ; culms 3 to 8 inches high ; blades 

 narrow, soft, flat, scattered; panicle narrow, about % the length of the entire 

 plant, the branches few, short, and appressed ; spikelets 3 to 4 lines long, ap- 

 pressed ; glumes strongly 3-nerved, % and 1 line long ; lemmas 1% lines long, 

 tapering from below the middle to the acute apex, pubescent on lower half. 



Alkaline soil; only known from California. Woodland; Livermore Pass, 

 Davy; Tulare Co., Congdon. 



Eefs. PUCCINELLIA SIMPLEX Seribn. U. S. Dept. Agr. Div. Agrost. Circ. 16: 1. f. 1. 1899, 

 type from Woodland, Blanlcinship in 1893. 



61. FESTUCA L. 



Spikelets 2 to several-flowered in narrow or open panicles. Glumes narrow, 

 acute, the first 4-nerved, the second 3-nerved. Lemmas firm, rounded on the 

 back, at least below, acute or awned from tip, rarely obtuse or awned from a 

 cleft apex, faintly 3 to 5-nerved. Annuals or perennials, usually tufted. Spe- 

 cies about 100, throughout the temperate and cooler parts of the world. (An 

 ancient Latin name for a kind of grass.) 

 Plants annual. 



Spikelets densely 5 to 13-flowered; lemmas without scarious margin 1. F. octo flora. 



Spikelets loosely 1 to 5-flowered; lemmas with narrow scarious margin. 



Branches of the short panicle normally divergent, a pulvillus at the base of at least 1 



of them. 



Florets mostly 3 to 5 in each spikelet; only the principal panicle branches divergent. 

 Lemmas glabrous. 



Glumes glabrous 2 - F - pacifica. 



Glumes hirsute - 3 - F - confusa. 



Lemmas hirsute. 



Glumes glabrous 4 - F - eriolepis. 



Glumes hirsute . ; >- F - 



