110 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



MUHLENBERGIA. 



Lemmas acuminate 1- M. racemosa. 



Lemmas long-awned. 



Hairs of the callus equaling the lemma 2. M. comata. 



Hairs of the callus much shorter than the lemma 3. M. syhxitica . 



1. Muhlenbergia racemosa (Michx.) B. S. P. Prel. Cat. N. Y. 67. 1888. 

 Agrostis racemosa Michx. Fl. 1: 53. 1803. 



Muhlenhergia glomerata Trin. Gram. Unifl. 191. 1824. 



Polypogon glomeratus Willd. Enum. Hort. Berol. 87. 1809. * 



Type locality: "Hab. in ripis salnilosis inundatis fluminis Mississippi." 



Range: Newfoundland to British Columbia, south to New Jersey, Missouri, and New 



Mexico. 



Speclmens examined: Suma.s Prairie, I.gaU in 1858-9; Loomis, Elmer, August, 1897; 



Wenache Valley, Sandberg <k Ltiberg 594; I'arker, A. D. Dunn; Cascade Mountains, Fa«ei/ 



140. 

 Zonal DISTRIBUTION : Transition. 



2. Muhlenbergia cotnata (Thurb.) Benth.; Va.soy, Desc. Cat. Grasses U. S. 39. 1885. 

 Vaseya comata Thurb. Proc. Acml. Phila. 1863:79. 1863. 



Type ix>cality: "A native of the plains of Nebraska." 

 Range: Colorado to Washington and California. 

 Specimens examined: Loomis, Elmer .558. 

 Zonal distribution: Arid Transition. 



3. Muhlenbergia sylvatica setiglumis S. Wats. Bot. King Explor. 378. 1871. 

 Type locality: "Near Warm Springs in Humboldt Pa.ss, Nevada; 6,000 feet altitude." 

 Range: Washington to Nevada. 



Specimens examined: Spokane,Ptper, September 1, 1899; Pbileo Lake, Spokane County, 

 Suksdorf fiA%. 



Zonal distribution: Arid Transition. 



ALOPECURTJS. 



Awns scarcely exceeding the glumes; spikelets2 to2.5mm. long. . 1. A. geniculatusfidvus. 

 Awns much exceeding the glumes. 



Spikelcts 3 mm. long; anthers orange 2. A. californicus. 



Spikelets 4 mm. long; anthers white 3. A. saccatua. 



1. Alopecurus geniculatus fulvxis (Smith) Sonder, Fl. Hamb. 32. 1851. 

 Alopeciirus fuhms J. E. Smith, Engl. Bot. 21: pi. 1467. 1805. 

 Alopecurus aristulatus Michx. Fl. 1: 43.1803. 



Alopecurus geniculatus aristulatus Torr. Fl. U. S. 1: 97. 1824. 



Alopecurus geniculatus robustus Vasey, Bull. Torr. Club 16: 13. 1888. 



Type locality,: England. 



Range: British Columbia to Newfoundland, southward to Florida, Tennessee, and Cali- 

 fornia. Europe. 



Specimens examined: Coupeville, Gardner 333; Seattle, Piper 793; Smith, June, 1890; 

 Tacoma, Flett 14, 183; Leckenby, }s\tiy 29, 1897; Clallam County, £7mer 1663; Alma, Elmer 

 548; Ellensburg, Vasey 118; North Yakima, Henderson, May 26, 1892; Watt, August, 1895; 

 Klickitat County, Suksdorf lOGO; Boundary, T. F. O'Hara; Usk, Kreager 356; Spokane, 

 Dewart, June 5, 1901; Asotin Creek, Jlunler 93; Waitsburg, Homer 214. 



Zonal distribution : Transition. 



2. Alopecxirus californicus ^'asey, Bull. Torr. Club 16: 13. 1888. 

 Alopecurus pallescens Piper, Fl. Palouse Reg. 18. 1901. 



Type locality: Santa Cruz, California, according to label on the type specimen. 



