MANUAL OF THE GRASSES OF THE UNITED STATES 



145 



FIGURE 275. Distribution of 

 Eragrostis secundiflora. 



(Reverchon 3501 A, Tex.) 



fine point; panicle condensed, more or less interrupted or with stiff 

 ascending rather densely flowered branches, 

 rarely somewhat open, 5 to 15 cm long, some- 

 times as much as 40 cm long, rarely sparsely 

 pilose in the axils; spikelets usually red- 

 brown, strongly compressed, subsessile, linear, 

 mostly 10- to 40-flowered, 8 to 15 mm long; 

 glumes acute, 1.5 and 2 mm long; lemmas 

 closely imbricate, 3 mm long, somewhat 

 abruptly narrowed to 

 an acute apex, the 

 tip slightly spreading; 

 palea bowed out below, 

 the keels prominent ; 

 anthers 0.2 to 0.3 mm 

 long, gray ; grain 1 mm 

 long. <2i Sandy 

 soil, northern Florida 



to Kansas and New Mexico, south to Oaxaca; 

 also California (San Diego) (fig. 275). 



5. Eragrostis beyrichii J. G. Smith. 

 (Fig. 276.) Resembling E. secundiflora and 

 possibly only a variety of that species; 

 differing in the softer foliage and panicle, 

 the plant on the average smaller, the panicle 

 pale or slightly pinkish; lemmas 3.5 to 4mm 

 long (the lower shorter), 



less firm, tapering to an acuminate apex; palea 

 broader and longer; anthers 0.4 

 to 0.5 mm long, yellowish. 01 

 Sandy soil, Texas and Okla- 

 homa (Wichita Mountains). 



6. Eragrostis spicata Vasey. 

 (Fig. 277.) Perennial; culms 

 tufted, erect, about 1 m tall; 

 blades flat, elongate, more or 

 less involute in drying, tapering 

 to a slender point; panicle 

 pale, slender, dense, spikelike, 

 10 to 30 cm long, 3 to 4 mm 

 thick; spikelets strongly com- 

 pressed, 2- or 3-flowered, 2 mm 

 long, the somewhat pubescent 

 pedicels less than 1 mm long; 

 glumes rather broad, obtuse, un- 

 equal, the second about 1 mm 

 long; lemmas about 2 mm long, 

 all rising to about the same 

 height, the lateral pair of nerves 

 P ESH. 2 ST1! faint. <4 -Dry ground, Laredo 

 floret, x 10. (Tracy 7924, and Browns ville, Tex. ; Baj a Cali- spicatfl 



fornia; Paraguay, Argentina. 

 7. Eragrostis ciliaris (L.) R. Br. (Fig. 278.) An- 

 nual; culms branching, erect to spreading, slender, wiry, 15 to 30 cm tall; 



spikeiet, x 10. (Swaiien 



