156 MISC. PUBLICATION 200, U. S. DEPT. OF AGKICULTUKE 



24. Eragrostis poaeoides Beauv. (Fig. 308.) Annual; resembling 

 E. cilianensis, mostly more slender; panicles rather more open, the 

 spikelets smaller, 1.5 to 2 mm wide, the lemmas about 2 mm long, the 



glands sometimes obscure; an- 

 thers about 0.2 mm long. Q 

 (E. minor Host; E. eragrostis 

 Beauv.) — Waste places, spar- 

 ingly introduced from Europe, 

 Vermont to Iowa, south to 

 Georgia and Texas ; Arizona and 

 California (fig. 309). 



25. Eragrostis barrelled Da- 

 veau. (Fig. 310.) Annual; 

 culms erect or decumbent at 



Figure 308.— Eragrostis poaeoides. Panicle, X 1; floret, Dase , 20 to 50 CHI tall, branching 

 X 10. (Dutton 2235, Vt.) > . '■ ,, i D 



at base, sometimes with a glan- 

 dular band below the nodes; sheaths pilose at the summit; blades 

 flat, rather short, 2 to 4 mm wide; panicle erect, open but narrow, 8 

 to 15 cm long, the branches ascending or stiffly spreading, few-flowered, 

 spikelet-bearing nearly to base, the axils gla- 

 brous; spikelets linear, usually 12- to 15- 

 flowered, mostly about 1 cm long, and 1.5 mm 

 wide ; lemmas 2 mm long or slightly longer, o 

 — Waste places, Kansas, Texas ; Arizona (Tomb- 

 stone); California (Fresno); introduced from 

 southern Europe. 



26. Eragrostis neomexicana Vasey. (Fig. 

 311.) Annual; culms usually rather stout, 

 often widely spreading, as much as 1 m tall; sheaths glabrous, pilose 

 at the throat, often with glandular depressions along the keel or nerves ; 



blades flat, often elongate, 5 to 10 

 mm wide; panicle 20 to 40 cm long, 

 smaller in depauperate specimens, 

 open, the branches ascending or 

 spreading but not divaricate, the 

 branchlets at first appressed along the 

 main branches, finally usually spread- 

 ing, the axils glabrous; spikelets mostly 

 dark grayish green, ovate to ovate-ob- 

 long, or rarely linear, mostly 8- to 12- 

 flowered, 5 to 8 mm long, about 2 

 mm wide; lemmas 2 to 2.3 mm long. 

 O — Fields, waste places, and wet 

 ground, Texas to southern California, 

 south through Mexico ; introduced in 

 Maryland, Indiana, Iowa, and Mis- 

 souri (fig. 312). 



27. Eragrostis mexicana (Hornem.) 



Panicle, Link. MEXICAN LOVEGRASS. (Fig. 



313.) Resembling E. neomexicana, but 

 lower, erect or spreading, often simple; panicle erect, comparatively 

 small and few-flowered, less compound, the branches and pedicels 



Figure 309.— Distribution of 

 Eragrostis poaeoides. 



Figure 310.— Eragrostis barrelieri. 

 X 1; floret, X 10. (Hitchcock 5280, Tex.) 



