FES'IL'C'E.E. 005 



188'2, both for tlie U. S, Dept. Agrieul. ; Colorado, Patterson in 

 l«y2, 



Cuiuulii, lowii, (volorudo, liritish Anierioji. 



Vur. Vaseyana lluuk. iiieJ. 



Blades of sterile shoots Ulil'orm, firm, scabrous, 10-25 cm. lonj?, 

 0.3-0.5 mm. ditim., those of the cuhn 2-3 in niinibor, narrow, invo- 

 lute; ligulo truncate, very short. Spikelets linear or elliptical- 

 lanceolate, 5-G-llo\vered; lirst glume J-ncrved, second almost keckMl, 

 lanceolate, 3-nervcd, G-7 mm. Ion;/, the lateral nerves extending 

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

 lanocohite, keeled above, T mm. long, the awn 1 mm. long. 

 Anthers ^'.7 mm. long. Ovary cuneate-obovoid, apex liispidulous 

 under the lens. 



Colorado (Vota Pass), Vttsei/, at an altitude of t»3oO feet. 



27. F. rubra I.. Sp. 74 (1753). The number of syncmyms and 

 varieties is very large. 



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

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

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

 culms, 5-9-1 lerved, the nerves except the marginal ones extending 

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

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

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

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

 Anthers linear, about half as long as the palea. 



Widely distributed from the Atlantic to the Pacific. 



Subspecies hetrophylla (Lam.) Hack. Mon<»g. Fest. Eu. 130 

 (1882). F. heterophijlla Lam. Fl. Fr. Ed. 1, OUO (177H). 



Densely caispitose, 50-00 cm. high, nodes of culm often 3 in 

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

 deltoid in section,!). -4-0. (> mm. diam., 3-nerved, ol)tuse, 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, ^{-iKM'ved, the lateral nerves short; floral glume 



