20 The Ottawa Naturalist. [December 



XLVI. PYLAISIA, Bruch and Schimp. 



124. P. polyantha, Bruch and Schimp. 



On rotten logs at Carleton Place ; on trees in McKay's Woods, 

 Oct. i2th, 1884. 



125. P. Selwynii, Kindb. Ott. Nat. II., 156. 



Differs from P. intricata in the denser, darker green tufts, the leaves 

 broader, short-acuminate, reflexed to the acumen at one border or at 

 both, the short alar and marginal cells more numerous, the capsule 

 short-oval, the segments adhering to two-thirds of the teeth. 



Very abundant on old cedar fences along the Richmond Road, 

 three miles west of Ottawa ; also on fences west of Hintonburg, April 

 i8th, 1896. Mr. A. J. Grout reduces this species to P. intricata, and 

 believes it to be merely a more compact form. 



126. P. intricata, Bruch and Schimp. 



Common on logs and trunks, in woods and on old cedar rails 

 around Ottawa ; on fence rails and trunks and branches in Rockcliffe 

 Park, April 28th, 1896. 



127. P. velutina, Bruch and Schimp. 



On old logs in Dow's Swamp, Sept. 25th, 1889. 



XLVII. ENTODON, C. Mueller. 



128. E. acicularis, C M. and Kindb. 



Tufts compact, brown-yellow or variegate with green. Stems much 

 divided, very radiculose ; branches very short and turgid, not attenuate 

 Leaves imbricate, with difficulty loosed from the stem, scarcely open 

 when moist, finally golden-yellow, from the ovate-oblong base suddenly 

 narrowed to a fine aciculiform or subulate point, denticulate nearly all 

 around; cells not chlorophyllose, linear-lanceolate or fusiform, the alar 

 not well defined ; costa generally wanting. Barren. 



On limestone rocks in woods near McKay's Lake, May 2nd, 1885 ; 

 also by an old lime-kiln at Britannia, Oct. nth, 1890, 



In a late revision of the genus Mr. A. J. Grout has reduced this 

 species also to a form of the next. 



129. E. cladorrhizans, (Hedw.) 



On old logs in Rockcliffe Park and McKay's Woods, April i6th. 

 1896 ; on stones and logs at Britannia ; and very abundant on old logs 

 in woods at Carleton Place. Fruiting abundantly in autumn. 



XLVIII. CLIMACIUM, Web. and Mohr. 



130. C. Americanum, Brid. 



On the ground in swamps about wet woods around Ottawa. Sel- 

 dom fruiting, but frequent in woods along the Beaver Meadow, Hull- 



