251] FLORA OF COLUMBIA AND VICINITY IO9 



211. 0. Frankii Kunth. [C. stenolepis Torr.]. 

 Common along streams and in wet places. 

 Pennsylvania to Missouri; Georgia to Texas. 



212. O. squarrosa L. 



Wet swamps and swales; local. 



Connecticut to Nebraska; Georgia to Louisiana. 



213 O. typhinoides Schwein. 

 Wooded swamp at Brushwood lake. 

 Quebec to Iowa; Virginia to Louisiana. 



214. O. aristata R. Br. \C. trichocarpa aristata (R. Br.) 

 Bailey]. 



Swamp south of Hinkson creek. 



New England and Ontario to the Northwest Terri- 

 tory; New York and Missouri to Utah and Oregon. 



215. 0. Shortiana Dewey. 



Along streams and in swales; common. 



Pennsylvania and Virginia to Iowa and the Indian Ter- 



Order 8. SPATHIFLORALES. 

 Family 12. ARACEAE Neck. Arum family. 



71. AOORUS L. 



216. A. Calamus L. Sweet flag. 



Margins of ponds and streams north and west; local. 

 Nova Scotia to Minnesota; Florida to Texas: Europe 

 and Asia. 



72. ARISAEMA Mart. {MURICANDA Small]. 



Indian turnip. 



217. A. atrorubens Blume [A. tryphyllum (L.) Torr.]. 

 Jack-in-the-pulpit. 



Alluvial woods and rich hillsides; frequent. 

 Nova Scotia to Minnesota; Florida to Louisi.\na and 

 Kansas. 



