480 POACE.E. 



and broader: floral glume 0.7 mm. long; palea with cilia on the 

 nerves 0.1-0.3 mm. long. Very likely a good species. 



(Jeorgia, Ciniif<s [iVJ3*; U. S. Dept. Agricul. 575, no locality; 

 Florida (Key West). 



5. E. Frankii Meyer, Steud. PI. Gram. 273 (1855). 



A slender much-branched ditfuse annual, 10-30 cm. liiirh. 

 Ligule short, ciliate; blades Hat, tiiin, nearly smooth, variable in 

 length, 1-2 mm. wide. Panicle ovoid-oblong, 7-15 cm. long, rays 

 and their branches capillary, very numerous, rather stitt'. hlpike- 

 lets pedicellate, oval, acute, 2-5-tlowered, 2-3 mm. long; empty 

 glumes slightly unequal, 1-nerved, acute, about 1 nun. long; floral 

 glume broadly ovate, acute, 1 mm. long, lateral nerves obscure; 

 palea incurved, 3-toothed, broadly oval, ciliate on the nerves 0.7 

 mm. Grain slightly compressed, obliquely oval. 0.5-0.6 mm. long. 



Pennsylvania, Porfer for Clark 2962; Michigan, Wliechr 96; 

 Illinois. Ganby in 1868; Missouri, Hitchcock', Tennessee, Gnffiiif/er 

 for U. S. Dept. Agricul. 578. 



Low or high land, sandy or clay loam. Pennsylvania to I^Iin- 

 nesota and southward. 



6. E. diversiflora Vasey, Contrib. U. S. Nat. Herb. 1 : 285 

 (1803). 



A diffuse annual, much branched below. 40-240 cm. high. 

 Sheaths 4-5, smooth, striate when mature, shorter than the inter- 

 nodes; throat pilose, ligule very short; blades scabrous above, 

 smooth below, 20-30 cm. long. 2-3 mm. wide, involute with long 

 capillary points. Panicle narrow, 15-20 cm. long, the largest ap- 

 pearing spikelike, rays in clusters or scattered, the longest 4-8 cm. 

 long, flower-bearing to near the base, or when young or feebly de- 

 veloped, thin with a few short spikelets, Spikelets very variable, 

 flattened more or less, either linear-lanceolate, 10 mm. long, 18-24- 

 flowered, or reduced and ovate-lanceolate, 3-5 cm. long, 4-6- 

 flowered, Avith all intermediate grades; empty glumes 1-nerved, 

 ovate-acute, first 1.3 mm. long, second 1.2 mm. long, scaberulous 

 on the keel; floral glume oval-acute, 2.7-2.8 mm. long; paleu 

 1.5-1.7 mm. long, with keels ciliate. Grain triquetrous-ovoid, 0.7 

 mm. long. 



