Brown-. — On the Genus Grimmia. 413 



out into the hair-point, very concave. Areola upper puncti- 

 form, when dry erect and adpressed. Perichcetial leaves 

 similar to the upper ones, sheathing the capsule. Fruit- 

 stalk extremely short. Capsule subrotund, small, mouth 

 wide, immersed. Peristome single, 16, imperfect. Oper- 

 culum short, conico-rostrate. Columella not falling away, 

 not adherent to the operculum. Calijptra mitriform, entire 

 at base. 



Hab. Limestone rocks, Castle Hill, Canterbury ; Novem- 

 ber, 1889. Collected by R. B. 



This plant appears to be very rare. 



10. Grimmia (Schistidium) wrightii, sp. nov. 



Plants small, growing in dense red-brown tufts Jin.— Jin. 

 high, branched by innovations, fastigiate. Leaves small, 

 closely imbricating, erecto-patent, ovate-lanceolate, acute, 

 concave. Margins entire. Nerve continued to the apex. 

 Areola upper punctiform, when dry erect and adpressed. Peri- 

 chcetial leaves erect, outer one larger than the inner, small, 

 oblong-lanceolate, acute, shortly hyaline at the apex. Mar- 

 gins entire, concave. Nerve ending at the hyaline apex. 

 Fruitstalk very short. Capsule small, shortly ovate, im- 

 mersed, mouth wide. Peristome single, 16, imperfect. Oper- 

 culum convexo-rostrate. Beak short, straight, Columella 

 not falling away, not adhering to the operculum. 



Hab. Limestone rocks, Broken River, Canterbury ; Novem- 

 ber, 1889. Collected by R. B. 



Operculum not found in three species next described. 



11. Grimmia (Schistidium! laingii, sp. nov. 



Plants reddish-brown, growing in small tufts -|in.-lin. 

 high, branched by innovations, fastigiate. Leaves diaphanous, 

 erecto-patent, closely imbricating; lower leaves ovate-lanceo- 

 late, acute, muticous or with a short hyaline point ; upper 

 ones ovate-lanceolate or oblong-lanceolate, tapering hyaline, 

 toothed hair-point, concave. Margins entire. Nerve ending 

 at the hair-point. Areola upper punctiform, when dry erect, 

 adpressed. Perichcetial erect, narrower than the upper leaves, 

 semi-convolute, oblong-lanceolate, tapering into a toothed 

 hyaline hair-point. Nerve ending at the hair-point. Fruit- 

 stalk very short. Capsule immersed, turbinate, mouth wide. 

 Peristome single, 16, perforated or slightly bifid. Operculum 

 and calyptra not found. 



Hab. Damp rocks, Mount Torlesse ; January, 1886. 

 Collected by R. B. (named after R. M. Laing, Esq., B.Sc, 

 President of the Philosophical Institute of Canterbury). 



