308 THROUGH GLADE AND MEAD. 
amplifolius, Tuckerm. Lake Quinsigamond. 
heterophyllus, Schreb. a a 
“ var. myriophyllus, Robbins. 
Lake Quinsigamond. 
obtusifolius, Mertens & Koch. Beaver Brook, Worcester. 
pauciflorus, Pursh. Lake Quinsigamond. 
pusillus, L. Common. 
a “ var. tenuissimus, Koch. as 
gemmiparus, Robbins. & 
Tuckermani, Robbins. Shockalog Pond, Uxbridge. 
Robbinsii, Oakes. Lake Quinsigamond. 
Naras, L. Naiad. 
flexilis, Rostk & Schmidt. Lake Quinsigamond. 
T. Morong. 
Indica, Cham., var. gracillima, A. Br. Lake Quinsigamond. 
Z. Morong. 
ERIOCAULE. 
ERI0cauLon, L. Pipewort. 
septangulare, With. Borders of ponds, not rare. 
CYPERACE. 
Cyperus, Tourn. Galingale. 
diandrus, Torr. Low grounds. 
filiculmis, Vahl. Dry soil. 
dentatus, Torr. Margins of ponds, not rare. 
strigosus, L. Swamps. 
Duticuium, Pers. Dulichium. 
spathaceum, Pers. Swamps. 
