608 FLORA OF TEXAS. 



leaf, the scattered branches appressed ; sjjikelets compress- 

 ed, 6-flowered ; awn 3-4 times the length of the subulate 

 sparsely hairy palea; stamens 1. Dry sandy soil. March 

 and April. Culms 6-12' high ; panicle pale, 4-0' long. 



F. TEXELLA, Willd. Culms (2-12' high) erect or ascend- 

 ing; leaves narrowly linear or ^liiovm. \ 2^anicle long-pe- 

 duncled, simple, spiked, or the branches slightly spreading, 

 mostly purple ; spikelets crowded, compressed, oblong, 

 8-12-flowered ; awn not longer than the subulate hispid 

 palea. Dry sandy soil. February- April. Witchita Moun- 

 tains. 



F. DURiuscuLA, L. Culms erect, l°-li° high ; leaves 

 filiform ; panicle simple, 1-sided, mostly bending, spread- 

 ing ; spikelets oblong, about 6-flow^ered ; awn shorter than 

 the smooth lanceolate 2^alea. April-May. 



** Flowers aumless ; panicle spreading ; perennials. 



F. NUTANS, Willd. Culms 2°-4° high, and, like the 

 broadly linear leaves, rough, or the latter hairy; panicle 

 1-sided, simple, erect or bending, the branches mostly by 

 pairs, remote, bearing few ovate o-6-flowered spikelets near 

 their summits, at length reflexed ; glumes rougli on the 

 back, acute; Zoztre?-jr?rt7ea ovate, barely pointed. Rich woods 

 and banks. August. Head-waters of Trinity River. 



BROMUS, L. Brome Grass. 



Grasses icnthflat leaves, and long-stalked spikelets in loose 

 panicles ; spikelets large, 3-many-flowered; glumes mem- 

 branaceous, unequal, commonly keeled ; loiver palea ususlWj 

 awned under the apex, convex on the back, about 7-nerved 

 at the base; stamens 3 ; ^mi;i flattened and grooved on 

 the inner face, and adherent to the upper palea. 



B. ciLiATUS, L. ; var., purgans, Gray. Perennial ; pani- 

 cle diffuse, the slender drooping branches mostly by pairs ; 



