360 GRASS FAMILY ' 



(n) Plants not tufted, with creep- 

 ing rootstocks ; panicles 

 open; leaf-sheaths hairy to 

 smooth P. Wheeleri 



n. Flowers dioecious P. fendleridna 



(y) Spikelets nearly round, little flat- 

 tened 



m. Lemmas hairy, at least at base P. lucida 

 n. Lemmas not hairy, finely rough- 

 ened P. nevadensis 



POLYPOGON Desfontaines 1800 BEARD GRASS 

 (Gr. poly, many, pogon, beard) 



Spikelets 1 -flowered in spike-like panicles ; glumes awned, lemma smal- 

 ler, short-awned below the tip, palet shorter ; annual. 

 Stems tufted, 4-20 in. high; panicle 1-4 in. long; 

 glumes 2 mm. long, with a bent awn, 4-6 mm. long P. monspeliensis 



PUCCINELLIA Parlatore 1848 MEADOW GRASS 

 (Named for Puccinelli, an Italian botanist) 



Spikelets usually 3-10-flowered, in panicles; glumes unequal, obtuse or 

 acute ; lemma rounded on the back, obtuse or acute, 5-nerved, the nerves 

 faint, palet about equal ; perennial. 

 Stems 1-4 ft. high; Spikelets 3-6 mm. long; lemma 2 

 mm. long P. airoides 



REDFIELDIA Vasey 1887 REDFIELDIA 



(Named for Redfield, an American botanist) 



PI. 45, fig. 29. 



Spikelets 1-3-flowered, in panicles ; glumes 2, equal, 1 -nerved, shorter 

 than the spikelet ; lemma 3-nerved with a tuft of hairs at base, palet shorter, 

 2-nerved ; perennial. 

 Stems 1-4 ft. high ; leaves 1-2 ft. long; panicle 8-20 in. 



long ; Spikelets 6 mm. long R. fle.vuosa 



SCHEIX>NNARDUS Steudel 1855 SCHEDONNARDUS 



(Gr. schedon, near; Nardus) 



PI. 46, fig. 6. 



Spikelets 1 -flowered, sessile and alternate on a zig-zag axis, in slender 

 spikes forming raceme-like clusters ; glumes 2, narrow, awn-pointed ; lemma 

 longer, palet narrow, shorter; annual. 



