194 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



MUHLENBERGIA SOBOLIFERA (Muhl.) Trin. 



MUHLENBERGIA MfixiCANA (Linn.) Trin. 



MUHLENBERGIA SYLVATICA (Torr.) A. Gray. 



MUHLENBERGIA DIFFUSA Schreb. 



BRACHYELYTRUM ERECTUM (Schreb.) Beauv. Brachyelytrum aristosum 

 (Michx.) B. S. P. 



BRACHYELYTRUM ERECTUM GLABRATUM (Vasey.) 



Brachyelytrum aristosum glabratum Vasey, mss. In Millsp. Flora 

 W. Va., 469 (1892)- 



A new variety discovered by Mr. L. W. Nuttall. It agrees 

 with the species except that it is perfectly smooth, and has an 

 awn pointed second glume which is about one-half the length of 

 the flowering glume. Its most striking peculiarity is that it has 

 invariably two culms from each rootstock. 

 High, rocky woods, rare. 



PHLEUM PRATENSE Linn. 



AGROSTIS ALBA Linn. 



AGROSTIS ALBA VULGARIS (With.) Thurb. 



Forma ARISTATA Millsp. in Fl. W. Va , 469 (1892). 



AGROSTIS PERENNANS (Walt.) Tuck. 



AGROSTIS HIEMALIS (Walt.) B. S. P. 



Calamagrostis cinnoides (Muhl.) Scribn. (Nuttall). 



ClNNA ARUNDINACEA Linn. 



ARRHENATHERUM ELATIUS (Linn.) Beauv. 



HOLCUS LANATUS Linn. 



DANTHONIA SPICATA (Linn.) Beauv. 



DANTHONIA COMPRESSA Austin. 



ELEUSINE INDICA (Linn.) Gaertn. 



DACTYLOCTENIUM ^EGYPTICUM (Linn.) Willd. Eleusine ALgyptica Pers- 



SIEGLINGIA SESLERIOIDES (Michx.) Scribn. Sieglingia cuprea (Michx.) 



EATONIA OBTUSATA (Michx.) A. Gray. 



EATONIA PENNSYLVANICA (DC.) A. Gray. 



ERAGROSTIS HYPNOIDES (Lam.) B. S. P. 



ERAGROSTIS ERAGROSTIS (Linn.) Karst. Eragrostis minor Host. 



ERAGROSTIS MAJOR Host. 



ERAGROSTIS PILOSA (Linn.) Beauv. 



ERAGROSTIS CAROLINIANA (Spreng.) Scribn. Eragrostis Purshii Schrad. 



ERAGROSTIS CAPILLARIS (Linn.) Nees. 



ERAGROSTIS FRANKII Meyer. 



MELICA MUTICA Walt. 



KORYCARPUS DIANDRUS (Michx.)O. K. Corycarpus Americanus (Beauv.) 



UNIOLA LATIFOLIA Michx. 



DACTYLIS GLOMERATA Linn. 



POA ANNUA Linn. 



