436 Transactions. — Botany. 



Section C. 

 Calyptra not pilose. Peristome single. 



24. Orthotrichum cyathiforme, sp. nov. 



Plants monoecious, brownish-green, growing in very small 

 tufts fin. high, branched by innovations. Branches very short, 

 fastigiate. Leaves closely imbricating, spreading, or erecto- 

 patent ; lower small, narrow, lanceolate, rounded at the apex; 

 middle and upper ones similar in their outline, upper largest, 

 ovate - lanceolate, rounded at the apex, concave. Margins 

 entire, recurved from the base to near the apex. Nerve 

 keeled, ending below the apex. Areola: Upper punctiform, 

 lower oblong. Leaves when dry erect, and adpressed to the 

 branch. Perichatial leaves shorter than the upper ones, erect, 

 oblong-lanceolate, rounded at the apex. Margins plain, entire. 

 Nerve ending below the apex, concave. Fruitstalk erect, 

 extremely short, almost sessile. Capsule small, oblong, pyri- 

 form, immersed. Peristome single, 8, bigeminate, entire. 

 Operculum not found. Calyptra mitriform, plicate, not pilose, 

 shorter than thg capsule. 



Hab. Trees, Little River; June, 1882. Collected by R. B. 



25. Orthotrichum acutifolium, sp. nov. 



Plants monoecious, brownish - green above, dark - brown 

 below, growing in small tufts Jin. high, branched by innova- 

 tions. Branches short, numerous, fastigiate. Leaves small, 

 closely imbricating, erecto-patenc. All the leaves are similar in 

 their outline, lower ones smallest, subulate, acuminate from a 

 cordate base, sheathing, concave. Margins entire, plain. Nerve 

 disappearing in the apex. Areola : Upper punctiform, lower 

 linear-oblong. Leaves when dry nearly erect. Pericluetial 

 leaves about as long as the upper ones, erect, oblong-lanceo- 

 late, acute, concave. Margins plain, entire. Nerve ending 

 below the apex. Fruitstalk erect, -Jin. long. Capsule exserted, 

 oblong-pyriform, tapering slightly into the fruitstalk. Peri- 

 stome single, 8, bigeminate, entire. Operculum conico-rostrate, 

 about one-fifth the length of the capsule. Calyptra mitriform, 

 not pilose, plicate. 



Hab. Trees near the River Teremakau ; June, 1884 : and 

 Moa Creek ; May, 1885. Collected in these localities by R. B. 



26. Orthotrichum rmrunui, sp. nov. 



Plants monoecious, dark-green, growing in small dense 

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

 T ^in., fastigiate. Leaves spreading from an erect base, closely 

 imbricating ; lower ones linear-lanceolate, acute, sheathing at 

 the base ; middle and upper ones similar in their outline, 

 ovate-lanceolate, obtuse, concave, slightly hooded at the apex. 



