1898] Macoun — Cryptogamic Flora of Ottawa. 2$ 



163. R. pseudo-serrulatum, Kindb. 



Leaves ovate or ovate-oblong, minutely denticulate, striate and 

 chlorophyllose, not or indistinctly decurrent ; cells lanceolate, the 

 lower shorter and more dilated ; costa thin,vanishing above the middle. 

 Stem leaves, short-acuminate or filiform-pointed ; branch-leaves with 

 short subulate sometimes twisted point. Capsule arcuate ; lid apicu- 

 lale ; pedicel rough very long. Stem subpinnate or irregularly divided. 

 Tufts dark green, faintly glossy, radiculose at the base. Monoecious. 

 Habit of y?. serrulatum. 



On earth and small stones in McKay's Woods near the lake, Oct. 

 1 2th, 1889, 



164. R. serrulatum, ^Hedw.) 



On earth in McKay's Woods, Sept. 6th, 1889. 



165. R. rusciforme, (Weis.) Schimp. 



Abundent on stones in the brook that discharges Kingscnere four 

 miles west of Chelsea, Que., Sept. 9th. 1889. 



Var. inundatum, Kindb. 



On rocks in the brook which discharges Kingsmere four miles 

 west of Chelsea, Que., Sept, 9th, 1889 ; on rocks in a brook discharg- 

 ing into Meeche's Lake, north of Chelsea, Que., Sept. 23rd. 1893. 



LVI. THAMNIUM, Schimp. 



166. T. Alleghaniense (C Muell.) Bruch and Schimp. 



In creyices of thick bedded limestone rocks near McKay's Lake ;: 

 under ledges along the cliffs Rocklifle Park, April 22nd, 1896. 



LVIL PLAGIOTHECIUM, Schimp. 



167. P. Passaicens?) Aust. 



On cedar stumps and trees in Dow's Swamp, Sept. 6th, 1889. 



