Creek Divide (Tracy, Earle and Baker 42G3) ; Beaver Creek (Pammel) ; 

 Marshall Pass (Shear 981); Manitou (Shear 765); "Colorado "(Wolfe 

 1135, 1136, 1137). 

 Neiv) Mexico : Santa Fe Canyon (Heller 3685). 



POA LONGIPEDUNCULATA VIRIDESCENS var. nov. 



Differs from the species in its greener color, generally longer, softer leaves, less 

 contracted, often interrupted jjanicle, the more delicate texture of the glumes 

 and the usually more conspicuous intermediate nerves of the flowering 

 glumes. 



Type specimen No. 2302, Thomas A. Williams ; open places, dry moimtain sides, 

 Sheep Mountain, Wyoming, July 2, 1897. Altitude 2,400 meters. 



Specimens have been examined as follows : 



Wrjoming: Sheep Mountain (Williams 2302, 2302a, 2276; Nelson 3304). 

 New Mexico : Barranca (Heller 3588); Santa Fe (Heller 3611); Santa Mag- 

 dalena Mountains (Vasey). 



The general aspect of this variety is quite different from the species and a study 

 of a more extended series of specimens -v^all possibly prove it to be deserving 

 of specific rank. 



POA SCABRIUSCULA sp. nov. 



A pale green, closely cfespitose perennial, 2A-3 dm. high, with slender, lax 

 leaves, abundantly produced from intravaginal shoots and rather closely 

 flowered subpyramidal panicles 5-7 cm. long by 2-3.V cm. broad. Culm 

 erect, striate, smooth except for a short distance immediately below the 

 panicle ; lower internodes short, usually exceeded by the sheaths, upper one 

 much exserted. Leaf -blades flat or convolute, those of the sterile shoots 

 8-12 cm. long by 1-1^ mm. wide, those of the culm short, the upper one 

 seldom over 1 cm. long, often reduced to a mucro ; leaf-blades all striate, 

 more or less roughened throughout; ligule obtuse, about 1+ mm. long; 

 sheaths striate, rough, the lower ones persistent. Panicle erect, the branches 

 scabrous, seldom exceeding 3 cm. in length. Spikelets compressed, usually 

 4-flowered, 5-7 mm. long, rachilla pubescent; empty glumes somewhat 

 unequal, lanceolate, acute or subacuminate, smooth or very sparsely 

 rough-hispid on the keels, shining, hyaline with green keel and nerves, lower 

 1-, ujiper 3-nerved, about 3 mm. long. Flowering glumes oblong, obtuse, 

 . keeled, smooth with keel and marginal nerves pubescent below and sparsely 

 hispid above, intermediate nerves subobsolete, pale green or purplish with 

 hyaline margins, about 3A mm. long ; palet much shorter then the flowering 

 glume, hyaline with green ciliate-hispid keels, apex bidentate. 



Type specimen No. 136, L. F. Ward, moimtains south of Glenwood, Utah, May 

 29, 1895. Altitude 2,550 meters. The species was also collected by J. Wolf 

 (No. 184) in 1875 in South Park, Colorado. 



The species is in some respects intermediate between Poa fendleriana (Steud.) 

 Vasey and P. brevipaniculata Scribn. & Williams, but it is easily distin- 

 guished from the former by its shorter panicle, smaller spikelets and flowers, 

 oblong flowering glume and rougher leaves, and from the latter by the 

 character of the spikelets, texture and shape of the flowering glumes, slender, 

 lax, rough leaves and lack of rhizomes. 



POA BREVIPANICULATA Scribn. & Williams, Circular 9. Div. Agros., p. 2 

 (Feb. 24, 1899). 



Specimens referable to this species have been examined from the following- 

 localities : 



Colorado: Table Rock (G. F. Breninger 554, type); Mt. Hesperus (Tracy, 

 Earle and Baker 262) ; West Mancos Creek (Tracy, Earle and Baker 

 160) ; Bob Creek (Tracy, Earle and Baker 205) ; Cripple Creek( Tweedy 279). 



