64 



filiform sub-obtuse. Leaves small, close, loosely appressed when dry, 

 open-erect- when moistened, ovate-acute or short acuminate, not sulcate 

 or decurrent, serrulate at least above the middle ; borders recurved 

 below the middle ; areolation loose ; upper cells narrowly rhomboidal, 

 inner sublinear ; alar quadrate somewhat numerous, chlorophyllose ; 

 costa stout reaching to §. Perigonial leaves ecostate. Dioecious. — On 

 elm logs in thick woods, Brighton, Northumberland Co., Ontario 

 (October 6th, 1888). J. Macoun, Coll. 



Isothecium (1) Davvsoni, Kindb. N. sp. 



Tufts soft, bright green, intricate. Stems slender, filiform, irregu- 

 larly branching, sparingly radiculose ; branchlets short, flexuous or 

 incurved. Leaves small, spreading, loose or not crowded, ovate-oblong, 

 cuspidate or filiform-acuminate, at the base slightly reflexed on the 

 borders, denticulate above, pellucid but sometimes faintly papillose ; 

 most of the cells narrow-lanceolate, the basal and marginal quadrate- 

 oblong ; costa none or very short and simple. Capsule oblong, pale 

 brown, not striate ; lid obliquely short beaked ; annulus large, pedicel 

 smooth, bright red-yellow, \ cm. long. Dioecious. Habit of Pylaisia 

 velutina. — On the base of trees in woods, Jupiter River, Anticosti 

 (August 26th, 1883). J. Macoun, Coll. 



Rhyncostegium (1) aneuron, Kindb. N. sp. 



Tufts dense, green and glossy. Leaves distichous, crowded and 

 patent, fiat, ovate-oblong, acute or short-acuminate, estriate, entire or 

 denticulate above the middle, decurrent ; cells very long and narrow, the 

 alar large, hyaline and subquadrate ; costa none or obsolete. Capsule 

 cylindric-obovate, horizontally curved ; teeth yellow ; pedicel smooth, 2 

 cm. long ; lid unknown. Probably dioecious. — This species could possi- 

 bly be referred to Plagiothecium. On dead wood in Dow's Swamp, near 

 Ottawa (October 17th, 1884). J. Macoun, Coll. 



Amblystegium speciophyllum, Kindb. N. sp. 



Plants loosely caespitose, dark green. Stems capillary, irregularly 

 ramulose, not or sparingly radiculose. Leaves small, long-distant, spread- 

 ing, subcordate or oval obloag, blunt or sub-acute, entire or denticu 

 late ; cells short ; costa sub-percurrent, broad, sometimes very distinct. 



