MANUAL OF THE GRASSES OF THE UNITED STATES 



589 



densely puberulent at the junction 

 with the sheath; racemes several, ap- 

 pressed, somewhat distant, usually 

 not overlapping, mostly 1.5 to 3 cm. 

 long, the rachis hirsute, the pedicels 

 with copious stiff hairs half as long as 

 the spikelet; spikelets 4 mm. long, 

 rather turgid, short-villous, the glume 

 and sterile lemma acutish; fruit 3 

 mm. long, apiculate. % — Prairies 

 and hills, Texas and Oklahoma. 



3. Eriochloa lemmoni Vasey and 

 Scribn. (Fig. 848.) Annual; culms de- 

 cumbent at base, 30 to 60 cm. tall; 

 blades flat, only the larger as much as 

 15 cm. long, 5 to 15 mm. wide, 

 velvety-pubescent on both surfaces; 

 racemes erect, the upper overlapping, 

 1.5 to 3 cm. long, the axis and rachis 

 densely villous, the pedicels with sev- 

 eral long hairs; spikelets 4 mm. long, 

 rather turgid, villous except the apex, 

 abruptly narrowed to a short obtuse 

 point; fruit 3 mm. long, slightly apic- 

 ulate. O — Canyons, southern 

 Arizona and northern Mexico. 



4. Eriochloa procera (Retz.) C. E. 

 Hubb. (Fig. 849.) Annual; culms 

 spreading at base, 40 to 60 cm. tall; 

 blades flat, 2 to 4 mm. wide; racemes 

 loose, slender, ascending, 3 to 5 cm. 



Figure 847. — Eriochloa sericea. Plant, X 1; floret, 

 X 10. (Reverchon 1170, Tex.) 



Figure 846. — Eriochloa aristata. Plant, X 1; floret, 

 X 10. (Thornber 98, Ariz.) 



Figure 848. — Eriochloa lemmoni. Plant, X 1; floret, 

 X 10. (Peebles and Harrison 4703, Ariz.) 



long, the rachis scabrous only; spike- 

 lets 3 to 3.5 mm. long, appressed- 

 pubescent, except toward the tip, the 

 glume and sterile lemma acuminate; 

 fruit 2 mm. long, the slender awn 

 about 0.5 mm. long. O (E. ramosa 



