108 Cheney and True—Flora of Madison and Vicinity. 
Scirpus, Tourn. Bulrush or club-rush. 
617. S. pun yens, Vahl. 
Lake shores. Local. 
618. S. lacustris, L. Great bulrush. 
Common in all the shallow waters of the region. 
619. S. atrovirens , Muhl. 
Collected on north side of Lake Wingra. Not 
common. 
Eriophorum, L. Cotton-grass. 
620. E. cyperinum, L. 
Wet meadows and marshes. Common. 
621. E. polystachyon, L. 
Growing in all the marsh land of the region. Not 
uncommon. 
Carex, Ruppins. Sedge. 
622. 
C. 
623. 
c. 
624. 
0 . 
625. 
c. 
626. 
c. 
627. 
c. 
628. 
c. 
629. 
c. 
630. 
c. 
Wet thickets. Not abundant. 
lupulina, Muhl., var. pedunculata, Dewey. 
Growing with the species. 
Tuckermani, Dewey. 
Growing at the edge of a pond east of Madison. 
Rare. 
retrorsa , Schwein. 
Rather common in wet places. 
hystricina, Muhl. 
In shallow water or wet places. Not rare. 
Pseudo- Cyperus, L., var. Americana, Hochst. 
Wet meadows and marshes. Rather common. 
filiformis, L. 
Growing in marsh south of Lake Wingra. Local. 
filiformis, L. Var., latifolia, Boeckl. 
In places similar to that in which the species was 
found. More abundant. 
riparia, W. Curtis. 
Common in very wet meadows. 
