FESTrcE.E. 495 



perale regions of tlie Northern Hemisphere, Australia, and some 

 parts of Africa and South America. 



It is difficult to assign to Kceleria any positive character. Tlio 

 glumes are more scarious and have fainter nerves than in the others 

 of the subtribe. It ha.s been divided into two sections: 



1. Airochloa Link. The glumes obtuse or acute without dis- 

 tinct points. 



2. Lophorhloa Reichb. The floral glume with a distinct point 

 or short awn at or Just l)elow the tip. 



1. K. cristata (L.) Pers. Syn. 1: or (1805). Air a crisfafa L. 

 Sp. PL 63 (175;}). Fesfiica crififafa Vill. Dauph. 2:93(1787). 

 Poa pi/rawiduialiiim. 111. 1:183 (1791). P.rristdfit Willd. Spec. 

 1 : 4()-* (17!)7). luelcria nilida Nutt. Gon. 1 : 74 (1818). K. 2m'- 

 vijlom liert. Schult. .Maut. 2:344 (18-34). 



An erect very variable i)ereunial, 30-70 cm. higli. Ligule very 

 short; blades flat or involute, the lower sparingly 

 hairy or downy. 10-20 cm. long, about 2 mm. wide, 

 obliquely auriculatc at the base. Panicle si)ikclike, 

 more or less interrupted or lobod, 5-13 cm. long, 

 axis and rays downy. Si)ikelets 2-4-flowercd, 4-5 



mm. long; iirst empty glume 2.5-3.5 mm. long, ^? 



, 1 n 1 1 .,' , 1 *'IG- 99.— ifefo- 



second and floral glumes 3.4 mm. long. ,.^7^ cristata. 



Michigan, Heal 103, Wheeler (llubbardston) for ^'?\^*-;'^V 

 U. S. Dept. Agricul. 5(;3, Cooley; Illinois, BcaJ, Behh 

 for Clark 3390; South Dakota, i)?//e^ in 1889; Colorado, CW.svs/W^, 

 Joues 254; Wyoming, Buffum, c. 14, c. 15, c. 27, c. 50, c. GO; 

 Arizona, Totimet/ 721, 921, Jones 4013; Geol. Surv. Canada, Van- 

 couver Island; Washington, Lake; Oregon, Howell j California, 

 Torre// 5G9 in 18G5, Bolander 31. 



114. (229). Catabrosa Beauv. Agrost. 97 (1812). 



S])ikelets 2-rarely 3-4- flowered, in a loose panicle, rachilla articu- 

 late between the flowers, smooth. p]mpty glumes thin, mem- 

 l)!an(ms, broad, unequal, very obtuse, nerves obscure, much shorter 

 than the floral glume; floral glumo Arm, membranous, obtuse or 

 barely 3-toothed, conspicuously 3-nerved, the upper one smaller, 

 empty or enclosing an imperfect flower; palea scarcely shorter thau 



