CATALOGUE OF PLANTS. 38 



283. C. virescens costata Dewey. 



G. costellata Britton. 

 In woods; less frequent than the species. Last of June-July. 

 East St. Pinery; Pine Island Lake. 



284. C. viridula Michx, (C. flava viridula ^atVey.) 

 Margins of lakes; frequent. Summer. 



285. C. vulpinoidea Michx. 



Common in swamps and wet meadows. June-July. 



CLADIUM P. IJr. Twig-Rush. 



286. C. mariscoides Torr. 



Frequent in shallow water about lake margins. July-Sept. 

 Pine Island Lake; Gold Lake; Button Lake; Grass Lake; Mud 

 Lake, Wright; Larkins' Lake; Campau Lake, etc. 



CYPERUS L. Galixgale. 



287. C. aristatus Boeckl. 

 C. injiej'us Muhl. 



Freqiient in wet sand along the banks of Grand River. Aug.-Sept. 



288. C, diandrus Torr. 



Low ground; common. Aug.-Sept. 



289. C. diandrus castaneus Torr. 

 (J. riruJarls Kunth. 



Found growing with the species; common. Aug.-Sept. 



290. C. Engelmanni Steud. 

 In wet soil; rare. Aug.-Sept. 

 Crooked Lake. 



29 L C. erythrorhizos Muhl. 

 Wet soil; infrequent. Aug.-Sept. 

 Reed's Lake; Grand River at Soldiers' Home; Pine Island Lake. 



292. C. esculentus L. 



Common in moist places. July-Sept. 

 A troublesome weed. 



