Brown. — On the Genus Grimmia. 419 



Hab. Eocks, Mount Torlesse ; January, 1886. Collected 

 by E. B. 



27. Grimmia webbi, sp. no v. 



Plants small, dark-green, growing in tufts Jin.-fin. high, 

 branched by innovations, fastigiate. Leaves upper erecto- 

 patent, narrowly lanceolate or oblong-lanceolate, with a 

 short hyaline point ; base erect, sheathing, concave. Margins 

 entire. Nerve continued to the hyaline point. Areola upper 

 punctiforrn, erect and adpressed when dry. Perichatial leaves 

 erect, about one-third shorter than the upper ones, lanceolate- 

 obtuse, concave. Margins entire. Nerve ending below the 

 apex. Outside of the perichsetial are a few longer leaves nar- 

 rowed from about the middle to the base. Nerve ending below 

 the apex. Fruitstalk decurved. Capsule narrowly ovate, 

 symmetrical, annulate. Peristome 16, single, slender, irregular, 

 irregularly perforated, red. Annulus deciduous. Operculum 

 short, conic. Calyptra not found. 



Hab. Eocks, Palmer's Pass, head-waters of the Eiver 

 Conway ; February, 1894. Collected by E. B. 



I have named this plant after H. E. Webb, Esq., F.E.M.S., 

 a member of the Council of the Canterbury Philosophical 

 Institute. 



EXPLANATION OF PLATES XXIX.-XXXIV, 



Plate XXIX. 



Figs. 1 and 2. — Grimmia (Schisti- Fig. 5. — Grimmia (Schistidium) 



dium) aquatica. revisa. 



1. Capsule. 1- Capsule, with operculum. 



2. Operculum, with adherent colu- 2. Calyptra. 



mella. 3. Perichsetial leaves. 



3. Perichsetial leaves. 4. Stem leaves. 



4. Upper stem leaf. 



5. Lower stem leaves. Fig _ ^_ Grimmia (Schistidium) 



Fig. 3. — Grimmia (Schistidium) . n 



searellii. *■ Capsule 



saxitilis. 



2. 



Operculum. 



1. Capsule. 3 Pericytial leaves. 



2. Operculum, with adherent colu- ^ Upper gtem lea£ 



mella. 5 Lower stem i ea f. 



3. Perichsetial leaves. 



4. Stem leaves. 



Fig. 7. — Grimmia (Schistidium) 

 Fig. 4. — Grimmia (Schistidium) mitchelli. 



apocarjia (British). L Capsu i e . 



1. Capsule, with operculum. 2. Operculum. 



2. Operculum, with adherent colu- 3. Calyptra. 



mella. 4. Perichsetial leaves. 



3. Inner perichsetial leaf. 5. Lower stem leaf. 



4. Outer perichsetial leaf. 6. Upper steam leaf. 



