62 SANDUSKY FLORA. 



PONTEDERIACE/E. 



HETERANTHERA, Ruiz & Pav. Mud-Plantain. 

 H. GRAMINEA, Valll. 



Common in still water connected with Lake Erie. 



PONTEDERIA, L. Pickerel- weed. 

 P. CORD ATA, L. 



Frequent in shallow water connected with Lake 

 Erie. 



JUNCACE^. 



JUNCUS, L. Rush. Bog-Rush. 



J. ACUMINATUS, Michx. 



Florence ; rare. 

 T. ALPiNUS iNSiGNis, Fries. 



Castalia, Oxford, shores of Lake Erie; frequent. 



Kelley's Island. 

 J. BALTicus LiTTORALis, Engeltn. 



Castalia, Cedar Point, Marblehead sand spit; 



locally abundant. 



J. BUFONIUS, L. 



Sandusky near B. & O. and L. S. & M. S. Ry's; 

 rare. 



J. CANADENSIS. 



Shinrock and Sandusky where the so-called va- 

 riety longicaudatus grows. 



J, CANADENSIS BEACHYCEPHALUS, Engelm. 



Castalia, Willow Point, Sandy Beach. 

 J. EFFUSUS, L. Common or Soft Rush. 

 Frequent. North Bass. 



J. MARGINATUS, Rostk. 



Berlin, Vermillion, east of Milan ; infrequent. 



J. NODOSUS, L. 



Frequent, 



