148 



THE TRUE GRASSES. 



Species one (U. pusilla Nees), in South Africa. A 

 low, branched annual. 



210. (218) Sesleria Scopoli (Fig. 74). Glumes keeled, 

 membranaceous ; flowering glumes 

 with 3-5 small teeth that are 

 frequently produced into short 

 awns. Panicles very dense and 

 spike-like or capitate. Perennial 

 grasses. 



Species ten, in Europe and 

 Western Asia, mostly alpine. S. 

 ccerulea Ard., with 3-5 short awns, 

 extends all through Europe. Psi- 

 lathera Link (as a genus) is a spe- 

 cies (section?) with five distinct 

 awns on the flowering glume and 

 two short awns on the palea. 



211. (223) Oreochloa Link. Habit 

 of the preceding, but with no bracts 

 at the base of the spike. Spike- 

 lets two-ranked, turned to one 

 side. 



Species two, 0. disticha Lk. 

 from the Carpathians to the Pyre- 

 nees, and 0. Pedemontana Boiss. & 

 Reut. in the W. Alps and Castile. 



212. (220) Fingerhuthia Nees. 

 Habit of Sesleria ; the uppermost and lowest spikelet of 

 the false spike aborted. A $ flower, or empty glume 

 with a short awn, above the $ flower. 



Species one (F. Africana Lehni.), in South Africa and 

 Atghanistan. 



213. (219) Elytrophorus Beauv. Spikelets minute, in 

 small capitate clusters and these united into a long con- 

 tracted panicle which appears like a small brush on 

 account of the numerous, short awns. Spikelets many- 

 flowered, with only one posterior stamen. 



Species one (E. articulatus Beauv.), extending through 

 the entire tropical zone of the Old World. 



Fig. 74. — Sesleria ccerulea Ard 

 (After Nees, Gen. Germ., I 

 53.) 



