156 



On flat boulders in McKay's woods. Oct. 12, 1885. 



Platygyrium repens, Bruch Jj Schimp. 



VAR. ORTHOCLADOS, Kindb. (N. var.) 



Branches elongate and not cm-ved. All basal leaf-cells orange* 

 Peristome orange, segme^its linear, not completeh' free at base, 

 smooth or denticulate at one side, not shorter than the teeth. 



Tlie European species has the teeth of the peristome pale, ordinarily 

 longer than the linear subuliform, hyaline-bordered and free 

 segments ; the branches of the stem are shorter and c,urved, only 

 the alar leaf-cells orange. The figure given by Schimper (Lesq. <fe 

 Jamis,) representing the peristome is not corresponding. 



The description of Neckera hrachyclada, C. Miill (in syn. muscor. 

 omn. frond.) found in Pennsylvania and Massachusetts, but not 

 mentioned by Lesqureux & James, could be referred to our plant, 

 except that it is indicated as monoecious. On old logs at Ottawa ; 

 probably common. Oct. 12, 1885. 



Pylaisia Selwyni, Kindb., n. sp. 



Diflfers from F. 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 fences, Richmond Road, Ottawa. 

 May 15, 1885. 



HOMALOTHECIDM CORTICOLUM. Kindb. N. Sp. 



Monoecious ; tufts dense, glossy ; stems radiculose, pinnate ; 

 branches densely crowded, curved ; stem leaves ovate, abruptly 

 narrowed to the recurved or straight acumen ; branch leaves 

 ovate-oblong, acute or short-acuminate, straight ; all leaves more 

 or less denticulate and reflexed all around ; alar cells quadrate, not 

 numerous ; the marginal also quadrate, the other oblong-rhom- 

 boidal ; perichetial leaves entire, long-acuminate ; capsule cylin- 

 do-ic-oblong, slightly curved ; teeth yellow, segments with a 

 high basilar membrane ; lid short- apiculate ; pedicel rough ; 

 l.c.m., long. Greater than Homalotheciam suhcapillatum. On 

 bark of trees in woods at Ottawa, Ont. Oct. 24th, 1887. 



