17 



above tlie baso, much exceediug; the glume, 5 to 6 mm. long, stout, miuutely 

 scabrous, strougly geniculate near the middle, tho lower part somewhat twisted, 

 the upper part divergent at an angle of 45 degrees, exserted, straight or slightly 

 liexuous, dark purple. Palea about 1 mm. shorter than the tlowering glume, 

 ovate-oblong, truncate, entire or obscurely bidentate, glabrous. Anthers about 

 2 mm. long. Caryopsis nearly 2 mm. long. Callus hairs sparse, the dorsal ones 

 very short, the lateral ones one-fourth to one-half as long as the flowering glume. 

 Prolongation of the rachila copiously l)earded, with its hairs exceeding the palea 

 and sometimes equaling the tlowering glume. 



Type specimen in the United States National Herbarium, collected in California by 

 J. G. Lemmon, in 1875. 



Intermediate between C. desrhampsioidc>i and C. brcwcri. From the former it differs 

 in its more c;espitose habit, culms taller; ligule usually longer ; panicle more 

 contracted; spikelets more numerous and smaller; glumes narrower; flowering 

 glume usually considerably shorter than the empty glumes and conspicuously 

 awn-toothed; awn longer and attached nearer the; base, palea shorter, anthers 

 smaller, callus hairs usually shorter, and prolongation of the rachilla longer and 

 with much longer hairs. From C. hrcicen it is distinguished by its creeping root- 

 stock, innovations cxtravaginal, leaf-blades longer, panicle larger, contracted, 

 with less divergent branches, spikelets larger and more numerous, flowering- 

 glume usually considerably shorter than the empty glumes, awn nsi;ally longer, 

 and palea considerably shorter than the flowerins: irlume. 



4. Calamagrostis breweri Thurb.; S. Wats. Bot. Calif. 2: 280 (1880). Deyenxia 



breweri Vasey Descr. Cat. Grasses U. S. 50 (1885). 



Mountains of California. 



Type specimen collected near Carsons Pass by W. H. Brewer (2128). 



Specimens examined. — Sierra Xerada MoKutahis: Altitude 2,946 meters (Brewer 

 2128). Ujyper Tuolumne Bivcr: {Bolnudev 6098), 1867. 



A peculiar species, with much the aspect of Festuca ovina L., distinguished from all 

 other North American members of the genus by its strictly intravaginal inno- 

 vations. 



tt Plant ratlier stiff, leaves of innorations long, often equalintj or surpassinij the ivliitisk 



panicle. 



5. Calamagrostis howellii Vasey ; Conlt. Bot. Gaz. 6: 271(1881). Deyeuxia liow- 



ellii Vasey Descr. Cat. Grasses U. S. 51 (1885). 



Washington and Oregon. 



Type specimen collected in Oregon by T. J. Howell. 



Specimens examined. — Washington: Larm River, West Klickitat County (Suks- 

 dorf 13), 1883. Oregon : Multonomah Falls (Bolander); Columbia River below 

 the Cascades (Howell, 356), 1880; Sandy River (Henderson, 13). 



A specimen from Washington, collected by Suksdi>rf, has the contracted but loosely- 

 flowered panicle of the extreme form of C. vaseyi. In habit and other characters, 

 however, it is not distinguishable from ('. howellii. 



""* Fanicle densely ffowered, branches appressed. 

 \ Strongly caspitose, rather hard in texture, leaf -blades strongly involute. 



6. CALAMAGROSTIS FOLIOSA Kearney, sp. n. C. sylvatica longifolia Vasey 



Monog. Grasses U. S., Contr. U. S. Herb. 3:83 (1892), not C. longifolia Hook. 

 A somewhat glaucous species with slender rootstocks, numerotis short, erect, or 

 ascending innovations whose leaves often equal or surpass the culms, and dense 

 spiciform jtanicles. Culms 2 to 4.5 dm. high, nearly erect, slender, somewhat 

 flexuous; internodes usually 3, finally greatly exceeding their sheaths. Sheaths 

 closely embracing the culm, slightly scabrous above. Ligule 4 to 5 ram. long, 

 truncate rather firm, whitish, somewhat scabrous. Blades 1 to 3 dm. long, 4 

 20101— Xo. 11 2 



