MOSELEY. 57 



C. trxbuloides, Wahl. 



Frequent, especially the variety turhata. North 



Bass. 

 C- tribuloides cristata, Bailey. 



Common. North Bass the only island. 

 C. tribuloides reducta, Bailey.* 



Florence and Huron ; rare. 

 C. triceps hirsuta, Bailey. 



Frequent. 



C TRICHOCARPA, Muhl. 



Huron River, Milan. The variety imberbis 

 grows in Florence. Both scarce. 



C. TRICHOCARPA ARISTATA, Bailey.* 



Huron, Castalia ; infrequent. 

 C. typhinoides, Schwein. 



East Berlin ; local. , 



C. TUCKERMANNI, Boott. 



Infrequent. 



C. UTRICULATA, Boott. 



Blair Creek, Florence ; rare. The so-called 



variety minor at Tisdell's, Vermillion ; rare. 

 C. varia, Muhl. 



Frequent. 

 C. virescens, Muhl. 



Oxford, Huron and east; common. 

 C. virescens costata, Dewey. 



Berlin Heights and east ; infrequent. 

 C. viridula, Michx.* ( C. flava viridula, Bailey.) 



Castalia prairie ; local. 

 C. vulpinoidea, Michx. 



Common. 

 C. wildenowii, Schkuhr. 



Florence; rare. 



CLADIUM, P. Br. Twig-Rush. 



C. triglomeratum, Nees. (C. mariscoides, Torr.) 

 Perkins, "Castalia," E. Claassen. 



