A(Hi()STlDE.E. 807 



smullor thau in Miilleuheryia and often not quite terminal; the nn- 

 awned species are distin«;uislied from Sporohohis by the fruiting 

 glume and ^rain which are nearly those of Agroslis. 



A. Empty ghimes 7-8 mm, long 1 



B. Empty glumes sliorter (u) 



a. Plant softly pubescent, awn 1-0 mm. long 3 



a. Plant not pubescent (b) 



b. Awn 2-10 mm. long 3 



b. Awn 10-18 em. long 4 



a. Plant unawned (c) 



c. Some i)lants of 2 



c. Ligule 'Z()~'M) mm. long 5 



c. Ligule 10 mm. long 6 



c. Ligule shorter (d) 



d. Panicle 7-0 mm. broad 7 



d. Panicle broader (e) 



e. Ligule a mere ring 8 



e. Ligule \\ mm. long 9 



1. E. stricta (II. H. K.) Presl, 1. c. Cri/psi's strida H. B. K. 

 Nov. Gen. et. Sp. 1 : 140 (1815). Crypsinna stricta Fourn. Ilemsl. 

 Biol. Centr. Am. liot. 3:54!) (1880). 



An erect tufted perennial, 50-80 cm. high. Sheaths scabrid; 

 ligule 1-1.5 cm. long, decurrent; blade involute, about 1 mm. 

 diam., those of the sterile shoots 30 cm. long, tliose of the culm 

 10-15 cm. long. Panicle plumbous, dense, 5-10 cm. long, nearly 

 1 cm. diam.; empty glumes subequal, 1-nerved, 7-8 mm. long; 

 floral glume about 5 mm. long, 3-nerved, with an awn below the 

 tip 1 mm. long. 



Mexico, Priuyle A^W. 



Cool slopes under pines, 11,000 feet altitude. 



2. E. lanata Presl, Keliq. IIa?nk. 1:235 (1830). 



A tufted erect perennial, clothed throughout with soft short 

 pubescence. Culms compressed. Sheaths longer than the inter- 

 nodes; blades flat, conduplicate and distichous, scabrous on the 

 margins and keel, 20-50 cm. long, 3-4 mm. wide. Panicle ex- 

 serted, erect, 30-40 cm. long, 3-4 mm. diam.; rays numerous, erect 



