RvDBERG : Rocky Mountain flora 537 



26, 



2 mm. 



Festtica ovina psendovina Piper, Contr. U. S. Nat. Herb. 



27. 1906. Not F. ovina pseiidovina Hack. 1881. 



Densely cespitose, perennial, with intravaginal innovations; 

 stem 2-4 dm. high, slender, glabrous; basal leaf-sheaths short, 

 closed only at the base, loose above; ligules very short and rounded ; 

 leaf-blades very slender, 3-J0 cm. long, less than half a millimeter 

 wide, strongly involute, in age becoming strongly striate; panicle 

 very narrow and spike-like, 4-10 cm. long; its branches erect or 

 nearly so, short; spikelets 4-6-flowered; first empty glume 

 l-nerved, about 2 mm. long, the second 3-nerved, 2.5 mm. long; 

 floral glumes lanceolate, 3-5 mm^ long, glabrous; awn i- 

 long. 



This species is rather common on dry hillsides and mountains 

 from Saskatchewan to Colorado and British Columbia up to an 

 altitude of "^^600 m. 



It has been mistaken for the European F, pseiidovina Hackel. 

 The latter was based on F. ovina Host, Gram. Aust. 2 : //. 8^. 

 This plate does not at all represent our North American plant. 

 The figure represents a small plant with a short open panicle, while 

 , our plant has a very narrow, rather long panicle with erect branches. 

 Piper in his monograph (Contr. U. S. Nat. Herb. 10: 2J, 1905) 

 cites Host's plate no. S6, instead of no. 8^. Whether this is a 

 mere misprint or whether Piper really had the former plate in mind, 



1 do not know. Plate 86, representing F.stricta, illustrates a plant 

 in habit much more like our plant. Whether Beal (Grasses N. Am. 



2 : 595) had in mind the same plant as Piper and myself is very 

 doubtful, as he cites only specimens from Michigan, and I have 

 seen no specimens of F. saximontana from that state. As the type 

 the following may be assigned : 



Alberta: Vicinity of Banff, 1899, W. C. MacCalla 2jji 

 (type, in herb. N. Y. Bot. Gard.). 



Festuca calligera (Piper) sp. nov. 



Festtica ameihystina asperrima Hack. ; Beal, Grasses N. Am. 2 : 



601. 1896. Not F. asperrima Link, 1822. 

 Festitca ovina calligera Piper, Contr. U. S. Nat. Herb. 10 : 27. 



1906. 



This I think is specifically distinct from /^ ovina. In the her- 

 baria at the New York Botanical Garden are found the following 

 specimens : 



