172 
BuUetin Wisconsin t\atural History Society. [Vol. 5. Xo. 4. 
HYDROCHARITACE^. 
VALLISXERIACEAE. 
Elodea canadensis Michx. PJiilotria Caiiadensis (Michx.) Britton. 
Water-weed. Common. 
Vallisneria spiralis L. Tape grass. 
In Milwaukee Eiver in northern part of connty. 
GRAMINE.^. 
Andropogon scoparius Michx. Broom Beard-grass. 
Near rolling mills in Bay View. 
A. furcatus ^fuhl. Forked Beard-grass. 
. In southwestern part of county. 
Digitaria humifusa Pers. Syntherisma linearis (Krock.) Xash. 
Small Crab-grass. Town of Franklin. 
D. sanguinale (L.) Scop.- Syntherisma sanguinaHs (L.) Dulac. 
Large Crab grass. Near New Coeln. 
Echinochloa crus=galli (L.) Beauv. Barnyard-grass. 
Not uncommon. 
Panicum capillare L. Witch-grass. 
Common everywhere. 
P. dichotomum L. Forked Panicum. 
Near New Coeln. 
P. Porterianum Nash. Porter's Panicum. 
In Wauwatosa and along banks of ^lilwaukee Eiver, near 
city limits. 
Setaria glauca (L.) Beauv. Chaetochloa glavca (L.) Scribn. 
Yellow Fox-tail. Locally common. 
S. viridis (L.) Beauv. Chaetochloa viridis (L.) Scribn. 
Green Fox-tail grass. Menomonee Valley and other localities. 
Cenchrus tribuloides L. Bur-grass. 
Southern part of Bay View. 
Zizania aquatica L. Wild Eice. 
Common in the Menomonee Vallej'. 
Leersia virginica Willd. Eomalocenchrus Virgi)iici(s (Willd.) Britton. 
White-grass. Common. 
