316 THROUGH GLADE AND MEAD. 
AGROPYRUM, Geertn. Wheat-Grass. 
repens, Beauv. Quitch-Grass. Common 
Etymus, L. Wild Rye. 
Virginicus, L. Wet places 
Canadensis, L. ee 
ASPRELLA, Willd. Bottle-brush Grass. 
Hystrix, Willd. Moist woodlands. 
Series II. CRYPTOGAMIA. 
Crass II]. ACROGENA. 
SuBcLASS I. PTERIDOPHYTA. 
EQUISETACE. 
EqQuisetum, L. Horsetail. 
arvense, L. Common Horsetail. Gravelly soil. 
sylvaticum, L. Moist shaded places. 
limosum, L. In shallow water. 
hyemale, L. G. £. Stone. 
scirpoides, Michx. Southbridge. Z. £. Ammidown. 
FILICES. 
Porypopium, L. Polypody. 
vulgare, L. Rocks, common. 
ADIANTUM, L. Maidenhair. 
pedatum, L. Rich moist woods. 
Preris, L. Brake. 
aquilina, L. Common Brake. Thickets, common. 
ASPLENIUM, L. Spleenwort. 
Trichomanes, L. Rare. 
