The grass occurs iu dry soil of meadows and on mountain sides at an altitude of 

 from 2,300 to 8,500 m. 



POA BREVIPANICULATA SUBPALLIDA var. nov. Differs from the 

 species in its paler green color, slender, soft leaves, which are less often con- 

 duplicate, and usually more contracted panicles. 



Type specimen Hall & Harbour (674 in part). Rocky Mountains, Colorado, 18(52. 

 A specimen belonging to this variety and possibly of the same collection as 

 the preceding is in the National Herbarium ticketed as Poa alpina var. , 

 Rocky Moimtains, 18(i2, E. Hall. 



POA FENDLERIANA (Steud.) Vasey, 111., N. Am. Grasses 2. No. 74 (1898), 

 in part. Eragrostis fendleriana Steud., Gram., 278 (1855). Atropis calif or- 

 nica Tlmrber, Wats. Bot. Calif. 2 ; 809, in part. Poa andma Vasey, Bot. 

 Wheeler Exped. 289, not of Nuttall nor of Linn. Poa calif ornica, in part, 

 Coulter, Man. Rocky Mountain, Bot., 420 (1885). (Fig. 1.) 



An erect, caespitose perennial, 3^-6 dm. high, with rather pale iipright leaves, 

 abundantly produced from intravaginal shoots and open, erect or somewhat 

 flexuous, usually purplish panicle 5-10 cm. long. Culm striate, scabrous 

 immediately below the panicle and nodes ; internodes usually equaling or 

 exceeding the sheaths. Leaf -blades flat or more often convolute, scabrous 

 below, hispid-pubescent above, mucronate-pointed, those of the sterile shoots 

 1-2 dm. long, by about U mm. broad, those of the cauline leaves much shorter, 

 the upper one often reduced to a mucro ; ligule short, rounded or truncate, 

 reduced to a narrow band or fringe on the leaves of the sterile shoots ; 

 sheaths striate, scabrous, the lower ones membranous and persistent. 

 Panicle branches spreading in anthesis, ascending in fruit, scabrous, the 

 longer lower ones seldom more than 3 cm. long, flower-bearing above the 

 middle. Spikelet compressed, ovate to ovate-lanceolate, rather acute, 4-7 

 (rarely more) flowered, 7-8 mm. long, 8-3* mm. broad; empty glumes 

 unequal, smooth, the lower 1 -nerved, lanceolate, acute or subacuminate, the 

 upper 3-nerved, ovate to ovate-lanceolate, acute, about 4 mm long ; flower- 

 ing glumes keeled, oblong-elliptical to oblong-ovate, obtuse, pubescent below 

 on keel and marginal nerves, smooth between the nerves, intermediate 

 nerves obsolete, about 5 mm. long ; palet much shorter than the flowering 

 glumes, sharply bidentate, sparsely hispid-ciliate on the keels ; rachilla more 

 or less hispid -pubescent. 

 Colorado: Trinidad (Crandall 15); Upper La Plata (Tracy, Earle and 



Baker 4257) ; Manitou (Heller 3502), 

 Neiv Mexico: Mangus Springs (Rusby 452) ; Silver City (G-reene 438) ; Santa 

 Magdalena Moimtains (Vasey) ; Santa Fe (Heller 3530, 3561). "New 

 Mexico" (Fendler 932, at least for the most part, type). 

 Arizona: Dos Cabezos (MacDougal 787; Emersley) ; Flagstaff (MacDougal 

 2) ; Ash Fork (Rusby) ; San Rita Mountains (Pringle) ; San Francisco 

 Peak (Jones). 

 California: " Sta. CriisSonora" (Parry). 



Grows on dry hills and mesas at an altitude of from 1,350 to 2,750 m. 



POA FENDLERIANA ARIZONICA var. nov. 



Differs from the species in being strongly glaucous throughout, in having longer, 

 rougher leaves, more unequal empty glumes, and in the firmer texture of the 

 flowering glumes. 



Type specimen collected at Yavapai Creek, June 1883, by Dr. H. H. Rusby. It 

 was also collected by Dr. Rusby at Prescott, Arizona. A less glaucous plant, 

 with smoother, flat leaves, collected by Dr. Rusby (No. 452) in the San 

 Francisco Mountains, Arizona, may be the staminate form of the variety. 



