78 LACKAWANNA AND WYOMING FLORA. 



ARISTIDA, L. 



878. A. dichotoma, Michx. POVERTY GRASS. Sandy or gravelly soil; 

 frequent in the valleys. 



ORYZOPSIS, MICHX. 



879. O. melanocarpa, Muhl. Mocanaqua, above Black Creek Falls. 

 Graves. 



880. O. asperifolia, Michx. MOUNTAIN RICE. Moosic Mt. Dudley. 



881. O. Canadensis, Torr. Naomi Pines, 1889 ; also "N. E. Penn." 

 Porter. Above Black Creek Falls; Bald Mt, 1889; Penobscot 

 Knob. Dudley. Rare and near its southern limit. 



MILIUM, TOURN. 



882. M. effusum, L. Luzerne and Lackawanna counties. Porter. 



MUHLENBERGIA, SCHREBER. 



883. M. sobolifera, Trin. Ledges, Taylorville, Campbell's Ledge, etc. 

 Dudley. 



884. M. glomerata, Trin. Occurring more often on the mountain tops 

 in this vicinity instead of in "bogs.' : Bald Mt.; Penobscot Knob, etc. 

 Dudley. 



885. M. Mexicana, Trin. Frequent. 



886. M. sylvatica, Torr. Gray. Taylorville ; Falling Spring. Dud- 

 ley. Kingston. Thurston. 



887. M. diffusa, Schreb. NIMBLE WILL. Kingston. Thurston, 

 Fair view. Dudley. 



BRACHYELYTRUM, BEAUV. 



888. B. aristatum, Beauv. Moosic L. Porter. Pocono Sta.; Fair- 

 view ; Penobscot Knob. Dudley. 



PHLEUM, L. 



889. P. PRATENSE, L. TIMOTHY. Common. 



ALOPECURUS, L. 



890. A. GEN'ICULATUS, L. Wyoming Swamp. Thurston. 



AGROSTIS, L. 

 91. A. ALBA, L. Tobyhanna. Porter. 



Var. VULGARIS, Thurb. (A. vulgaris, With.) RED-TOP. HERDS 

 GRASS. Common. 



