292 Transactions. — Botany. 



Peristome none. Oj^erculum oblique, convexo - rostrate. 

 CalyjJtra cucuUate. 



Hab. On damp banks, Port Lyttelton Hills. Collected by 

 R. B. 



Pottia longifolia, nov. sp. Plate XXXII. 



Plants small, pale-green, annual, growing in loose patches, 

 gregarious. Stem simple or branched, about gViu- long. 

 Leaves few, erecto-patent, upper large, oblong-lanceolate, 

 acute ; loioer small, oblong-lanceolate, acute, very concave. 

 Margins entire. Nerve ending at the apex. Areola, tipper 

 pentangular, loioer oblong-quadrate, crisp when dry. Peri- 

 clicetial leaves smaller than the upper - stem ones, oblong- 

 lanceolate, acute, otherwise similar. Fruitstalk terminal, 

 about -Jin. long, erect. Capsule ovate, symmetrical, mouth 

 small. Peristome none. Galyptra cucullate. 



Hah. On damp clay-banks, at the head of Governor's Bay; 

 July, 1882. Collected by R. B. 



Pottia bickertonii, nov. sp. Plate XXXII. 



Plants small, annual, yellowish-green, growing in patches, 

 gregarious. Stem simple, about -g-^in.. Leaves few, erecto- 

 patent, loioer linear-lanceolate, acute, middle oblong-lanceo- 

 late, acute ; tipper broadly oblong-lanceolate, acute, crisp 

 when dry. Areola, up)per pentagonal, loioer oblong-quadrate. 

 PerichcBtial shorter than the upper leaves, broadly ovate- 

 lanceolate, acute, semiconvolute. Fruitstalk terminal, in- 

 clined, lin. long. Capsule oval, symmetrical. Peristome none. 

 Operculum slender, oblique, convexo-rostrate. Calyptra cucul- 

 late. 



Hah. Port Lyttelton hills, on damp banks. Collected by 

 R. B. (Named in honour of Professor Bickerton, of Canter- 

 bury College, Christchurch.) 



Pottia macrocarpa, nov. sp. Plate XXXIII. 



Plants annual, growing in dense patches, gregarious. Stem 

 simple, about lin. long. Leaves numerous, closely imbricating; 

 upper oblong-lanceolate, apiculate, or oblong rounded at the 

 apex, apiculate, concave. Margins entire. Nerve excurrent. 

 Loioer stem-leaves smaller, but otherwise similar to upper 

 ones. Areola, upper pentagonal, loioer oblong-quadrate, crisp 

 when dry. Perichcetial leaves slightly shorter, otherwise 

 similar to the stem ones. Fruitstalk terminal, nearly erect, 

 ^\in. long. Capsule large, ovate, subsymmotrical. Peristome 

 none. Operculum stout, conico-rostrate, slightly oblique, 

 nearly half the length of the capsule. Calyptra cucullate. 



Hah. Damp clay-banks. Port Lyttelton hills. Collected 

 by R. B. 



