KOELERIA— MUHLENBERGIA 355 



Stems 1-3 ft. high; panicle 1-7 in. long; spikelets 4-6 



mm. long, the keel rongh-ciliate K. cristdta 



Lycurus II. B. EC. 1815 Texan Timothy 

 (Gr. lykos, wolf, oura, tail) 



Spikelets 1-flowered, usually in pairs on spike-like terminal panicles; 

 glumes 2, 3-nerved, the nerves often extending into awns; lemma hroader 

 and longer than the glumes, 2-nerved, palct smaller, 2-nerved, 2-toothed ; 

 tufted perennial. 

 Stems 8-20 in. high; panicles 1-3 in. long; spikelets 4 



mm. long, the lemma with an awn its own length L. phleoides 



Lolium Li nne 1753 Darnel 

 (The Latin name) 



Spikelets 4-10-flowered, solitary, sessile, and. alternate in the notches 

 of the terminal spike, flattened, the edge of the spikelet turned toward the 

 axis ; glumes 1 or 2 ; lemmas rounded on the back, 5-7-nerved, palet 2- 

 keeled ; annual or perennial. 



1. Glume shorter than the spikelet- L. perenne 



2. Glume equalling or exceeding the spikelet L.temulentum 



Melica Linne 1753 Melic Grass 



(A Greek name of the sorghum, probably from mel, honey) 



PL 45, fig. 22. 



Spikelets 2-5-flowered, in panicles, the axis extended beyond the flowers 

 and usually bearing 2-3 empty scales ; glumes more or less unequal, 3-5- 

 nerved ; lemma rounded on the back, 7-13-nerved, sometimes awned, palet 

 shorter than the lemma, 2-keeled ; perennial. 



1. Stems bulbous-thickened at the base; spikelets 



5-8-flowered, 10-12 mm. long M. bulbosa 



2. Stems not bulbous-thickened at the base; spike- 



lets 2-5-flowered 



a. Spikelets nodding M. parviflora 



b. Spikelets not nodding M. Smithii 



Muhlenbergia Schreber 1789 Muhlenbergia 



(Named for Muhlenberg, an American botanist) 

 PI. 46, fig. 21,22. 



Spikelets 1-flowered, in open or dense, spike-like panicles , glumes acute, 

 sometimes awned; lemma 3-5-nerved, obtuse, acute or awned, palet narrow: 

 annual or perennial 



