Bkown. — On the Genus Grimmia. 411 



4. Grimmia (Schistidium) saxitilis, sp. nov. 



Plants reddish-brown, growing in small tufts about fin. 

 high, branched by innovations, fastigiate. Leaves diaphanous, 

 closely imbricating, lower spreading ; upper nearly erect, 

 ovate-lanceolate, acuminate, with a hyaline short hair-point, 

 base erect, sheathing, middle leaves smaller, but otherwise 

 similar to the upper ones, concave. Margins entire. Nerve 

 ending at the hair-point. Areola upper punctiform, loosely 

 adpressed when dry. Perichatial leaves very large, erect, 

 semi-convolute, sheathing, oblongdanceolate, tapering into a 

 short hyaline hair-point. Fruitstalk short. Capsule immersed, 

 ovate-oblong, mouth wide. Peristome single, 16, slightly bifid 

 and minutely perforated. Operculum convex, with a short 

 straight beak. Columella not adhering to the operculum. 

 Calyptra not found. 



Hab. On rocks, Broken River, Canterbury; November, 

 1889. Collected by B. B. 



5. Grimmia (Schistidium) mitehelli, sp. nov. 



Plants growing in small dense tufts, brownish-green, |iu. 

 high, branched by innovations, fastigiate. Leaves imbricating, 

 erecto-patent ; lower leaves ovate-lanceolate, acute ; upper ones 

 oblong-lanceolate, acute, without hyaline hair-points. Mar- 

 gins entire, recurved to near the apex, concave, keeled. Nerve 

 continuous. Areola upper punctiform, when dry slightly crisp. 

 Perichatial leaves large, erect, broadly oblong-lanceolate, acute, 

 slightly recurved near the apex. Fruitstalk very short. Cap- 

 sule immersed, broadly ovate, mouth wide. Peristome single, 

 16, irregular, perforated. Operculum conico-rostrate, oblique, 

 slender. Columella not adherent to the operculum. Calyptra 

 mitriform, entire at the base. 



Hab. Damp rocks, Port Lyttelton hills ; 1878 : and Mount 

 Self, near the Hurunui River; March, 1893. Collected by 

 R. B. 



6. Grimmia (Schistidium) cyathiformis, sp. nov. 



Plants loosely tufted, brownish-green, iin.-lin. high, 

 branched by innovations, spreading, fastigiate. Leaves imbri- 

 cating, diaphanous, erecto-patent ; lower leaves ovate-lanceo- 

 late, obtuse ; upper ones oblong-lanceolate, with a short acute 

 hyaline point, concave. Margins entire. Nerve ending at the 

 hyaline point. Areola upper punctiform, when dry erect and 

 adpressed. Perichatial leaves erect, oblong-lanceolate, acute, 

 concave. Margins entire, nerved, disappearing under the 

 apex, without a hyaline point. Fruitstalk very short. Cap- 

 sule cyathiform, mouth wide. Peristome single, 16, slender 

 at the apex, shortly bifid or minutely perforated. Oper- 



