330 



POACE.E. 



Culms erect, branching below, 1 5-00 cm. high. Sheaths shorter 



tlmii tilt' intuniock's; ligiile -4-.') mm. 

 long; bliules Hut or involiito, j>iiU' green, 

 5-12 em. long. Spikelike piinicle, 5-15 

 cm. long, nearly 1 em. broad, shining 

 with a lustre like satin. ' Spikelets lan- 

 ceolate, sliglitly scabrous on the keels, 

 5-0 mm. long, first glume with a shiny 

 enlargement at the base. 



California near the sea coast, also in 

 Chili, anil in the vicinity of tlie Medi- 

 terranean Sea. 



1'lie grass appears to be unpalatable 

 to stock. 



G8. (140). CalamaOEOSTIS Adans. 

 Fam. PI. 3:31 {\7ij-6). Dci/vKxiu Clar. 

 Beauv. Agrost. 43, /. 9, fujs. 9, 10 

 (1812). jMrhiKujrosfifi Trin. Fund. 

 Agrost. 12H (1812). J^rk/iela Steud. 

 Syn. PI. (J ram. 101 (1S54). 



Spikelets 1 -(lowered, iiedicellate or 

 rarely sessile, the i)aniele either loose 

 and spreading or narrow and spikelike, 

 the raeliilla articulate above the outer 

 glumes, usually bearing a tuft of hairs 

 round the lloral glume and produced 

 beyond it in a snudl ciliate (rarely glabrous) bristle, very rarely 

 bearing an empty glume or imperfect flower, sometimes very 

 minute, or deticient. The two outer glumes persistent, keeled, 

 iinawned; floral glume shorter and very thin, about as long 

 (rarely longer and membranous), broad, 5-nerved below the awn, 

 with a fine dorsal awn, usually bent and twisted, rarely short and 

 straight or sometimes absent; palea thin, more than half as long as 

 its glume, faintly or prominently 2-nerved. Styles distinct, short. 

 Grain enclosed and sometimes partially adhering to floral glume 

 and palea. 



Tin. 58. — Gdntridiumnusti'ale. 

 A, spikelct; a, tloict. (ycrib- 

 iier.) 



