442 Transactions. — Botany. 



ovate sheathing base ; middle and upper linear - lanceolate, 

 acuminate, base ovate, sheathing, concave. Margins entire, 

 recurved from the base to a little above the middle. Nerve 

 keeled, disappearing in the apex. Areola : Upper punctiform ; 

 lower small, linear-oblong. Leaves crisp when dry. Peri- 

 chcetial leaves erect, longer than the upper ones, linear- 

 lanceolate from an ovate base, acuminate, concave. Margins 

 not recurved, entire. Nerve disappearing in the apex. Fruit- 

 stalk straight. Capsule large, pyriform, tapering into the 

 fruitstalk. Peristome single, 8, bigeminate. Operculum and 

 calyptra not found. Male inflorescence gemmaceous in the 

 axil of a leaf below the perichastium. 



Hab. On trees near Castle Hill; November, 1889. Col- 

 lected by E. B. 



39. Orthotrichum robustum, sp. nov. 



Plants monoecious, dark-green, growing in small tufts, ^in.- 

 fin. high, branched by innovations. Branches short, fasti- 

 giate. Leaves closely imbricating, spreading ; lower ones ob- 

 long-lanceolate, acute ; middle and upper ones very similar in 

 their outline, upper lax'gest, ovate, lanceolate, acute, very con- 

 cave. Margins entire, recurved from the base to above the 

 middle. Nerve ending below the apex. Areola: Upper puncti- 

 form, lower oblong-quadrate. Leaves erect and adpressed to 

 the branch when dry. Perichcetial leaves erect, as long as the 

 upper ones, nearly convolute, oblong-lanceolate, acute, sheath- 

 ing. Margins plain, entire. Nerve ending below the apex. 

 Fruitstalk erect, short. Capsule large, subimmersed, ovate, 

 oblong. Peristome imperfect, only the base of the outer re- 

 maining, 8, bigeminate. Operculum and calyptra not found. 



Hab. Eocks, West Coast Eoad ; June, 1884. Collected 

 by E. B. 



40. Orthotrichum curvatum, sp. nov. 



Plants monoecious, light-green above, dark-brown below, 

 growing in small tufts fin. high, branched by innovations. 

 Branches loose, spreading, slender, fastigiate. Leaves im- 

 bricating, erecto-patent or spreading ; lower ones small, linear- 

 lanceolate from an ovate base, acute ; middle and upper leaves 

 very similar in their outline, linear-lanceolate, obtuse ; base 

 erect, sheathing, semi-convolute. Nerve keeled, disappearing 

 below the apex. Margins plain, minute, papillose. Areola : 

 Upper punctiform ; lower narrow, oblong. Leaves when 

 dry suberect. Perichcetial leaves shorter than the upper 

 ones, erect, sheathing; outer ligulate from the middle, and 

 rounded at the apex, lower half ovate ; inner one much 

 broader and shorter than the outer one, ovate, rounded 

 at the apex, semi-convolute. Nerve ending below the apex. 



