Brown . — On the Genus Orthotrichum. 439 



Hah. Twigs, Mount Torlesse ; January, 1886. Collected 

 by E. B. 



31. Orthotrichum minimi folium, sp. nov. 



Plants monoecious, brownish-green, growing in small dense 

 tufts Jin. high, branched by innovations. Branches short, 

 fastigiate. Leaves spreading, closely imbricating ; lower ones 

 small, linear-lanceolate, subacute ; middle and upper leaves 

 very similar in their outline, linear-lanceolate, subacute, base 

 erect, sheathing, semi-convolute. Margins entire, plain. 

 Nerve ending below the apex. Areola: Punctiform upper, 

 lower linear-oblong. Perichcetial leaves : Inner ovate-subu- 

 late ; outer longer, ovate-subulate. Nerve ending below the 

 apex. Margins entire, plain. Fruits talk erect, short. Capsule 

 small, immersed, ovate-oblong. Peristome double : outer 8 

 bigeminate, entire, or perforated in the middle line, and occa- 

 sionally on the lateral ones ; inner 8 cilia consisting of one 

 slender row of cells nearly as long as the outer and alternat- 

 ing with them. Calyptra as long as the capsule, mitriform, 

 plicate, not pilose. Male inflorescence gemmaceous in the axil 

 of a leaf below the perichaetium. 



Hab. Eocks, Moa Creek ; May, 1885. Collected by E. B. 



32. Orthotrichum obtusatum, sp. nov. 



Plants monoecious, brownish-green, growing in small tufts 

 ■J-in. high, branched by innovations. Branches short, fas- 

 tigiate. Leaves erecto-patent, imbricating, lower and middle 

 ones small, upper large, all very similar in their outline, 

 broadly ligulate, and round at the apex ; base erect," sheathing, 

 concave. Margins plain, entire. Nerve ending below the 

 apex. Areola : Upper punctiform, lower oblong. Leaves 

 when dry suberect. Perichcetial leaves larger and longer than 

 the upper ones, oblong-lanceolate, acute. Nerved to the apex. 

 Margins entire, plain. Fruitstalk short, erect. Capsule small, 

 ovate, tapering slightly into the fruitstalk, immersed. Peri- 

 stome double : outer 8 bigeminate, entire ; inner 8 cilia alter- 

 nate with the outer ones, and consisting of one row of cells, 

 shorter than the outer teeth. Operculum conico - rostrate, 

 one-third as long as the capsule ; beak short. Calyptra 

 smaller than the capsule, plicate, not pilose. 



Hab. Eocks, Moa Creek ; May, 1885. Collected by E. B. 



Calyptra pilose. Peristome not found. 



33. Orthotrichum parvulum, sp. nov. 



Plants brownish-green, growing in very small tufts ^in, 

 high, branched by innovations. Branches less than j^gin, 

 long, subfastigiate. Leaves closely imbricating, small, erecto- 



