FESTUCE^. 605 



1882, both for the U. S. Dept. Agricul. ; Colorado, Patterson ia 

 1892. 



Canada, Iowa, Colorado, British America. 



Var. Vaseyana Hack. iued. 



Blades of sterile shoots filiform, firm, scabrous, 10-25 cm. long. 

 0.3-0.5 ram. diam., those of the culm 2-3 in number, narrow, invo- 

 lute; ligule truncate, very sliort. Spikelets linear or elliptical- 

 lanceolate, 5-6-flowered; first glume 1-nerved, second almost keeled, 

 lanceolate, 3-nerved, 6-7 mm. long, the lateral nerves extending 

 half the length of the glume; floral glume obscurely nerved, ovate- 

 lanceolate, keeled above, 7 mm. long, the awn 1 mm. long. 

 Anthers 2.7 mm. long. Ovary cuneate-obovoid, apex hispidulous 

 under the lens. 



Colorado (Veta Pass), Vasey, at an altitude of 9300 feet. 



27. F. rubra L. Sp. 74 (1753). The number of synonyms and 

 varieties is very large. 



Culms geniculate, ascending at tlie base, terete or more or less 

 angled. Sheaths of the sterile shoots all entire^ thin, splitting 

 with age, destitute of longitudinal grooves, closely filled by the 

 culms, 5-9-nerved, the nerves except the marginal ones extending 

 into the blade; ligule very short, those of the culm unsymmetri- 

 cally biauriculate or auriculate on one side; blades often of two 

 forms, rarely of one form. Floral glume obtusely keeled below tlie 

 apex, rather obscurely 3-5-nerved, with a narrow scarious margin. 

 Anthers linear, about hidf as long as the palea. 



"Widely distributed from tiie Atlantic to the Pacific. 



Subspecies hetrophylla (Lam.) Hack. Monog. Fest. Eu. 130 

 (1882). F. heterophylla Lam. Fl. Fr. Ed. 1, 600 (1778). 



Densely cajspitose, 50-90 cm. high, nodes of culm often 3 in 

 number, blades of two forms, smooth, soft, tliose of the sterile shoots 

 deltoid in section, 0.4-0.6 mm. diam., 3-nerved, obtuse, sheaths tri- 

 angular; blades of the culm wider, flat, 7-11-nerved. Panicle 6-16 

 cm. long, lax, ovate, nodding, rays scabrous in twos or threes. Spike- 

 lets linear-oblong, 8-10 mm. long, remotely 3-9-flowered, green or 

 tinged with violet; empty glumes unequal, very acute, second sub- 

 ulate-lanceolate, 3-nerved, tiie lateral nerves short; floral glume 



