The Flora of the Cayuga Lake Basin 119 



Newf. to Sask., southw. to Md., the Great Lakes, and Nebr., including the Coastal 

 Plain. 

 The narrow-leaved extreme form (var. Billingsii Knight) occurs at Junius. 



26. C. canescens L. (Including var. subloliacea Laestad.) 

 Peat bogs; infrequent. June. 



Freeville, n. of village; McLean Bogs; Junius peat bogs; and elsewhere. 

 Lab. to B. C, southw. to Conn., Va., Ohio, and in the Rocky Mts. to N. Mex. (?), 

 including the Atlantic Coastal Plain. Found also in Eurasia. 



26a. C. canescens L., var. disjuncta Fernald. 



In situations similar to the preceding; apparently rare. June. 



South Hill Marsh. 



Lab. to Wis., southw. to Pa. and Ohio. 



27. C. brunnescens (Pers.) Poir. (C. canescens, var. vitilis, of Cayuga Fl.) 

 Meadows and springy places, in calcareous soils ; infrequent. June. 



Michigan Hollow Swamp (D.\) ; Spruce Swamp, Enfield (D.) ; Dryden-Lansing 

 Swamp (D.) ; Freeville Bog (D.) ; borders of McLean Bogs (£>.!) ; open pasture, 

 Beaver Brook. 



Lab. and Newf. to B. C, southw. to N. C, Mich., and in the Rocky Mts. ; ap- 

 parently absent on the Atlantic Coastal Plain. Found also in Eu. 



This species differs from the last preceding one in the very slender green leaves, 

 few-flowered spikes, and narrower, more beaked perigynia, which are more spreading 

 at maturity. 



[C. arcta Boott. 



A plant from a swale at s. edge of woods n. e. of Etna station {A. Gershoy) seems 

 to be this species, but is too young for certain determination. Found in Cortland Co.] 



28. C. sterilis Willd. (C. sterilis, in part probably, of Cayuga Fl.) 

 Marl bogs ; rare. June. 



"Junius" (Sartwell in Gray Herb.) ; Newton and Lowery Ponds. 



Newf. and Que. to Minn., southw. to n. N. J. and n. Pa. 



Not recognized in Gray's Man., ed. 7, the plant so called being C. atlantica Bailey. 



29. C. interior Bailey. (C scirpoides of Gray's Man., ed. 7. C. echinata, var. 

 microcarpa, of Cayuga Fl.) 



Borders of peat bogs, and apparently also in marl ; common. June. 



Summit Marsh; headwaters of Inlet; Larch Meadow; Freeville Bog; McLean 

 Bogs ; Junius peat bogs ; Spring Lake ; and elsewhere. 



Lab. and Newf. to Hudson Bay and B. C, southw. to n. N. J., N. Y., Mo., and n. 

 Calif.; apparently also on the Atlantic Coastal Plain. 



30. C. Howei Mackenzie. (C. scirpoides, var. capillacea, of Gray's Man., ed. 7.) 

 In sphagnum bogs ; scarce. June. 



Ringwood ; Freeville Bog ; Junius ; Westbury Bog. 



N. S. and N. H. to N. J. and Md., and in cent. N. Y. ; mostly coastal. 



31. C. incomperta Bickn. (C. sterilis, in part, of Gray's Man., ed. 7.) 

 Boggy noncalcareous places ; rare. June. 



South Hill Marsh (with C. folliculata) , 1919. [Also in Oswego Co.] 

 N. H. to Ga., Miss., and Tex., also in cent. N. Y., Ind., and Tenn. ; chiefly coastal. 

 Most central New York specimens heretofore named " C. Atlantica " and " C. 

 sterilis " are of this species. 



