'catalogue of CANADIAN PLANTS. 145 



A remarkable form of this species grows at Campbellford, J^orthum- 

 berland Co., Ont. As usual, it grows in large clumps about three feet 

 high, but instead of the spikes being sessile, they are peduncled, or 

 have scattered perigynia for nearly half theii- length, which is often 

 from three to four inches. The sboaths are scarcely fibrilose, and 

 many of the perigynia are abortive. I conclude from these chai-acters 

 that it is a hybrid between C. aquatiUs and C. stricta. 



Var. decora. Bailey, Coult. Bot. Gaz. XIll., 85. 

 C. aperta, Carey, Gray, Man. Ed. V., 582, (1868.) 



Usually smaller and more slender than the species, the basal sheaths 

 not fibrilose ; spikes short (seldom over an inch long), sessile or nearly 

 80, very rarely attenuated at the base, spreading ; braota usually con- 

 spicuously spreading ; scales very sharp, spreading, longer than the 

 perigynia. (Bailey.) A very obscure species and evidently not the 

 one figured by Boott. I agree with Prof. Bailey in doubting the 

 accuracy of the eastern C. aperta. My specimens, though named by 

 Dewey and Olney, appear to be C. stricta, var. strictior, Carey; Gray, 

 Man. v., 583, (I8118.) (Macoun.) Near Eichibucto, Kent Co.; and rather 

 common at Salmon Eiver, N.B. (Fowler, Cat.) Tobique River, N.B. 

 (Bay.) Mer Bleue, near Ottawa. (Fletcher, Fl. Ott.) Border of a 

 little lake one mile north of Hooper's Lake, Tudor, North Hastings, 

 Ont. ; fifteen miles up the Kaministiqua, west of Port Arthur, Lake 

 Superior. (Macoun.) Wet river bank, London, Ont. (Burgess.) 

 Specimens collected on the Nachacco River, in northern British Colum- 

 bia, in 1875, are referred here. I doubt their identity with the eastern 

 specimens, but they are placed here for the present. 



(2604.) C. lenticularis, Michx., Fl. L, 172, (1803); Hook., Fl. 



n., 219. 



Abundant in the beds of rivers, growing in the crevices of rocks in 



lai-o-e tufts. Chiefly found in northern Ontario, and north-eastward. 



Coa.'5t of Labrador, lat. 51° 30'. (Allen.) Bass River, Kent Co.; not 



rare at Salmon Eiver ; St. Stephen, N.B. (Fowler, Cat.) Amongst 



rocks, Ste. Anne des Monts River, Gaspd, Q. ; on wet rocks in rear of 



the old saw-mill, Marmora village, Hastings Co. ; shore of Gull Lake, 



Barrie, Addington Co. ; abundant from Balsam Lake, the whole length 



of Gull River, Victoria Co.; very abundant all around Lake Superior, 



and north up Nipigon Eiver to the Lake. (Macoun.) Shallow water, 



Poit Cockburn, Lake Joseph, Muskoka Co., Ont. (Burgess.) Michi- 



picotin River, Ont. (R. Bell.) Lake Mistassini, N. E. T. ; Severn 



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