FESTUCE.E. 



493 



Culms 40-70 cm. high. Ligule fringed, 1.6 mm. loug; blades 

 flat, scabrous, tliose of the culm 8- 

 16 cm. long, 2-3 mm. wide. Pani- 

 cle dense, coiitractetl, usually inter- 

 rupted, G-ll cm loug, 8-12 mm. 

 diam.. sometimes tinged witli pur- 

 l)le. Si)ikclets crowded : iirst empty 

 glume 1.2-2 mm. long, second 2-2.3 

 mm. long; lloral glume obovatc, 

 1. 8-2. 2 mm. long. 



Illinois, Wolfe for U. S. Dept. Fio. QH. — Eatonia obtusaia. A, 



. . , ^„. T rri 7 7 ypikclet; a, floret. (Scribner.) 



Agricul. oGi; Iowa, Ilitchcuck; 



Colorado, Caxxidij; Wyoming, />V^//Va/» C 104, C 148; California, 



Parish 1G40; Wasliiugtou, Lake; southern California, Ptirish 



1040. 



Dry soil, Pennsylvania to Florida, ^licliigan, Colorado, and 

 Oregon. 



\'ar. robusta Vasey, ined. Stouter, blades 5-7 mm. wide. Pan- 

 icle branclied, l.">-18 cm. long. 



New Mexico, Vasey; State of Washington, U. S. Dept. 

 AgriruL 



5. E. Pennsylvanica (DC.) A. Gray, Man. Ed. 2:558 (1856). 

 Kti'lcria ]\'nHsijlvaHica DC. Cat. Ilort. Monsp. 117 (l8i;]). 

 Aim irijlom EU. Bot. S. C. & Ga. 1:153(1817). Aim mollis 

 ^luhl. Gram, 82(1817), J'JafoniajJU rjmrascens llai'in. Journ. Phys. 

 89: 104 (1810). liebouUa Pennsylvanica A. Gray, Man. Ed. 1: 

 501 (1848). 



Culms 00-90 cm. high. Leaf-blades scabrous, 8-15 cm. long, 

 acuminate. Panicle slender or stouter, considerably internipiod, 

 12-20 cm. long, branches lax, racemose, often 3-5 cm. long. 

 Knipty glumes thin, scabrid on tlio keels, first very slender, 1.5-2.2 

 mm., second obovate or abruptly pointed, 2.2-3 mm, long; lloral 

 glume lance-linear, mucronate-pointed or scarcely acute when 

 spread, 2,2-3 mm. long; palea 2 mm. long. 



Very large forms with ample i)anicles have been called var. 

 major Torr. 



