KOELERIA. 1 65 



rough ciliate on the keel, the 5 nerves of the latter 

 converging into the awn-like point ; the upper glume 

 commonly smaller and thinner. Stamens 3. Grain 

 lance oblong, acute, free. Perennials ; leaves keeled. 

 Name from daktylis, a Greek word, signifying a 

 finger's breadth, apparently in allusion to the size of 

 the clusters. 



1. D.Glomerata (Rough Cocksfoot, Orchard Grass). 

 See page 24. 



29. KOELERIA, Pers. KOELERIA. 



GEXERIC CHARACTER, 



Spikelets 3 to 7-flowered, crowded in a dense and 

 narrow spike-like panicle,. Glumes and lower palet 

 membranaceous, compressed-keeled, obscurely 3- 

 nerved, barely acute, or the latter often mucronate or 

 bristle-pointed; the former moderately unequal, 

 nearly as long as the spikelet. Stamens 3. Grain 

 free. Tufted grasses (allied to Dactylis and Poa), 

 with simple upright culms ; the sheaths often 

 downy, 



Named for Professor G. L. Kohler, an early writer 

 on grasses. 



1. K. Cristata (Crested Koeleria). Dry, gravelly 

 places, Pennsylvania to Illinois, and westward. Va- 

 riety gracilis, with a long and narrow spike, the flow- 

 ers usually barely acute, Dry hills, Pennsylvania 

 to Illinois ; thence northward and westward. 



