8 
«atia, extrorlum Icabris , corolla maior. Gluma 
corollina, valvulis linearibus minutiffimis , altera 
ariftata, arifta recta calycem excedente. 
Ex inlula Pafcbatis oceani aultralis. 
ti. Arrostis clandestina, mutica,' panicula con- 
tracta fubfpicaeformi , in foliorum vaginis oc- 
culta, vaginis ore pilolls. 
Culmus teres erectus foliofus. Folia involuta 
fetacea , glauca, vaginis ore pilolls. Panicula con- 
tracta pouciflora , in foliorum vaginis latens. Glu- 
ma calycina corolla minor, glabra, valvulis lan- 
ceolatis fubaequalibus. Gluma corollina calycem 
multo excedens, glumis longe acuminatis muticis 
glabris aequalibus. 
E Penfylvania. Miihlenb . 
12. Aira nitida, mutica, panicula contracta cylin- 
drica, glumis trunca! is, flosculo altero pedi- 
cellato , valvulis hyalinis. 
Folia pollicaria, ima pubefcentia. 
E Penfylvania. Miihlenb. 
5 J. Aira pallens, ariftata , panicula contracta, 
valvulis calycinis inaequalibus , flosculo altero 
ariitato , altero mutico. 
