1897] Macoun — Cryptogamic Flora of Ottawa. 133 



ditches along the railway on the Experimental Farm • also along the 

 Parry Sound Railway west of Hintonburg ; on the sides of the dis- 

 charge of Leamy's Lake, near Hull, Que. ; in a C. A. Ry. cutting at 

 Moose Creek. Sept. 6th, 1889. 



20. D. heteronaalla, Schimp. 



Common in sandy woods or on the roots of turned-up trees and 

 by roadside banks. Fruiting in summer. Woods at Ironsides and 

 Chelsea, Que. ; al?o at Casselman and Carleton Place ; in woods at 

 West End Park, Ottawa ; in McKay's Woods. Sept. 12th, 1889. 



VIII. DICRANUM, Hedw. 



21. D. montanum, Hedw, 



On decaying logs, and stumps and bases of standing trees in 

 woods. Does not fruit at Ottawa. On the bases of trees at Leamy's 

 Lake, Hull, Que. ,; on stumps on "Pine Hill," Rockcliffe Park, April 

 14th, 1896. 



22. D. fuivum, Hook. 



On boulders in woods. Not rare in McKay's woods, but seldom 

 fruiting ; on boulders " Pine Hill," Rockcliffe Park ; on rocks, Aylmer 

 Road west of Hull, Que. October loth, 1891. 



27,. D. viride, Schimp. 



On the bases of growing trees ; always barren. Quite common in 

 McKay's Bush and Beechwood Cemetery ; in woods at Buckmgham, 

 Que., May 14'h, 1896. 



24. D. flagellare, Hedw. 



On decaying logs in damp or shady woods. Fruiting in spring. 

 Meeche's Lake and Chelsea, Que. ; on " Pine Hill," Rockcliffe Park, 

 April 28th, 1896. 



25. D. scoparium, Hedw. 



Very common on earth in all woods around Ottawa. Rockcliffe 

 Park, April 22nd, 1897. 



26. D. scopariiforme, Kindb. 



Intermediate between D. scoparimn, Hedw. and D. fuscescens, 

 Turn. Dioecious. Leaves greenish-yellow, flexuous, lanceolate, subulate 

 with a short and flat subula ; margin nearly flat or slightly incurved, 

 densely and sharply serrate to one-third ; cell-walls rarely interrupted 

 by pores ; upper cells oblong-oval, lower not much nai rower, inner 

 basal light brown ; costa thick, percurrent, with two serrate ridges 

 at the back in the upper part. Capsule curved, not striate ; pedicel 

 red, and short. 



