MACOUN.] CATALOGUE OF CANADIAN PLANTS. 177 



margins recurved at the angles ; cells not distinctly chlorophyllose, 

 narrow, fusiform-lanceolate or sub-linear, also the inner basal ; alar cells 

 numerous, well- defined and quadrate ; costa none or short and double. 

 Perichetial leaves long subulate-acuminate, faintly denticulate at the 

 acumen. Monoecious. 



On logs, Tay, York Co., KB. (J. Moser.} On old logs in McKay's 

 woods at Ottawa ; very abundant on old logs at Carleton Place, 30 

 miles west of Ottawa; on stones at Britannia, six miles west of Ottawa ; 

 common on old logs at Belleville, Leamington and Owen Sound, Ont. 

 (Macoun.) Trunks of trees, Upper Canada (Ontario). (Drummond.) 

 Common on old logs at London, Ont. (J. Dearness) 



(667.) E. Macounii, 0. M. & Kindb. (n. sp.) 



Cylindrothecium Drummondii, Canadian Musci, No. 436. 



Tufts loose. Stem sparingly divided, translucent (visible, in a dry 

 state, through the leaves) ; branches much compressed, elongate, 

 not attenuate, shining green above. Leaves patent, concave, short, 

 ovate-lanceolate, attenuate to a short subulate point ; basal angles 

 rounded ; margins scarcely recurved below, faintly denticulate all 

 around ; cells faintly chlorophyllose, long-sublinear, the lowest basal 

 dilated, oblong or the alar often subquadrate ; costa none or very short 

 and double. Perichetial leaves small, convolute or connivent, longer 

 acuminate, more distinctly denticulate at the apex. Dioecious. 



The species is quite distinct ; Entodon Drummondii differs in the 

 leaves being obtusate, nearly entire, &c. 



On earth in the " Big Swamp," Murray, Northumberland Co., Ont., 

 October 7th, 1888. (Macoun.} 



(668) E. (Raphidostegium ?) expallens, C. M. & Kindb. 

 (n. sp.) 



Tufts loose, pale yellow. Stems sparingly divided, radiculose 

 at the base. Branches elongate, much compressed, not attenuate. 

 Leaves sub-distichous, patent, short ovate-lanceolate, acute, concave, 

 nearly entire, denticulate only at the apex, distinctly auriculate, not 

 recurved at the margins ; cells not chlorophyllose, long-sublinear, the 

 inner basal dilated sub-oblong ; auricles excavate, well-defined with large, 

 oval or roundish, finally golden-yellow cells ; costa none or double, 

 sometimes reaching to the middle. Barren. 



This species could perhaps be related to the genus Itaphidostegium, 

 but the leaves are not recurved at the margins ; the plant is more 

 robust and resembles JEntodon Macounii in habit. 



In boggy soil in wet woods at Stephen, summit of Eocky Mountains, 

 July 23rd, 1885. (Macoun.) 12 



