41 
i 
Es Elymus macounii Vasey. ; 
North Dakota: Minot (Brannon 106), Grand Fork 
South Dakota: Brookings, Big Stone, dieu or ( Ad 63), Huron (Griffiths 4). 
Dry bottom lands and e ee tree de ain 
Elymus robustus Scribn. & Smith, Bull. 4, Div. Agros., p. 37 (1897). 
South Dakota: Mellette (Griffiths 139). 
Elymus striatus Willd. 
South Dakota: Brookings ( Wilcox 68). 
Open woodlands. 
Elymus virginicus L. 
North Dakota: Minot (Brannon 114), Bottineau, Oakes. 
South Dakota: Brookings (Wilcox 5), Sioux Falls, Redfield Senari 76), Aurora 
County, White River (Wallace 45), Indian Creek (Wallace 18). 
Elymus sp 
North D; Bottineau (Brannon 85) 
Dry soil along the edges of thickets. í The heads bend downward shortly after the 
flowering. season” (Brannon), 
TYPHACES. 
Typha latifolia L. 
South Dakota: Aberdeen (Griffiths 126). 
Becoming very abundant in the water from the artesian wells. 
CYPERACEZ. 
Cyperus acuminatus Torr. & Hook. 
South oo Frankfort (Griffiths 57). 
Dry ditche 
Cyperus erythrorhizos Muhl. 
South Tested Brookings, Sioux Falls, Iroquois, Tacoma Park on the James River 
(Griffiths 97). 
; Cyperus schweinitzii Torr. 
: North Dakota: Rugby Junction (Brannon 97). 
i South Dakota: Rock Ridge Creek (Wallace 74), Rosebud (Wallace 75), Me icine 
Root Creek (Wallace 76). 
In dry sandy soil. 
Cyperus speciosus Vahl. 
South Dakota: icis. (Griffiths 9). 
Moist, shady plac 
Eleocharis acicularis R. & $. 
North Dakota: Pleasant Lake (Brannon 7 
South Dakota: Brookings, Dell Rapids, — Creek ( — 73). 
Growing in dense mats along the banks of ponds or strea 
Eleocharis acuminata (Mubl.) Nees. 
North Dakota: Conway essit 35). 
South rra Brookings 
oil 
ls palustris L. 
North Dakota: Girard La ke (Brannon 103). 
South punte: a Sioux Falls, Big Stone. 
In low, w et ground or shallow water. 
