STATE GEOLOGIST. 149 



J. nodosus, L. Bog-Rusb. 

 Common throughout the state. 



J. nodosus, L., var. megacephakis, Ton-. Bog-Rush. 



Common in Martin county, and in Emmet county, Iowa, Cratty, Manitoba, J/acow?i; 

 probably tliroughout the state. 



J. Canadensis, J. Gay, var. long-icaudatus , Engelm. Bog-Rush. 



Minneapolis. Simmontt; Blue Earth county, Leiherg. Through the south part of 

 the state. 



J. Canadensis, ,T. Gay, var. coarctatus, Engelm. Bog-Rush. 

 North of lake Superior, Jani. [Manitoba, Macoun] North. 



PONTEDERIACE^. Pickerel- Weed Family. 



PONTEDERIA, L. Pickerel- Weed. 



P. cordata, L. Pickerel- "Weed. 



Lake Pepin, Miss Manniny ; "White Bear lake, Ramsey county, Simmons, Kelley; 

 lake Minnetonka, also in Douglas county, Mrs, Terry; pond in section 23, Burns, Anoka 

 county, Roberts; Stearns county, Campbell. Infrequent. 



SCHOLLERA, Schreber. Water Star-grass. 



S. graniinifolia, Willd. Water Star-grass. 



White Bear lake, Kamsey county, Simmons; lake Minnetonka, Roberts, Miss Butler; 

 Blue Earth county, Leibern. Scuith. 



COMMELYNACEiE. Spiderwort Family. 



TRADESCANTIA, L. Spiderwort. 



T. Virg-inica, L. Common Spiderwort. 



Common, often abundant, through the south half of the state ; extending northeast 

 to the upper Mississippi river, and north to lake Winnipeg, Watson. Southvvestward 

 the flowers are often seen varying from the ordinary blue to purple and pink. 



XYRIDACE^. Yellow-eyed-grass Family. 



XYRIS, L. Yellow-eyed Grass. 

 X. flexuosa, Muhl. Yellow-eyed Grass. 



Sandy lake, about three miles north of East Minneapolis, Roberts; also collected 

 near Minneapolis by Mr. Kassube; White Bear, Ramsey county. Miss Field. Rare. 



ERlOCAULONACEiE. Pipewort Family. 



ERIOCAULON, L. Pipewort. 



E. septangulare, With. Pipewort. 



Lake Agnes, Alexandria, Douglas county, Mrs. Terry. Rare. 



