Brown. — On the Genus Pottia. 293 



Pottia douglasii, nov. sp. Plate XXXIV. 



Plants dark-green, perennial. Stem short, -gin., branched. 

 Branches short, -Jin. Leaves erecto-patent, ovate-lanceolate, 

 acuminate. Nerve excurrent. Margin minutely toothed 

 near the apex by the excurrent cells. AreolcB lax, quadrate 

 below, pentangular towards the apex. Perichcstial leaves 

 longer, otherwise similar, incurved when dry. Fruits talk 

 nearly erect, fin. to -|in., red, twisted to the right when dry. 

 Caps^de obconic or turbinate, red. Operculum oblique, conico- 

 subulate. Columella adherent to the operculum, and falling 

 away with it. Calyptra cucullate. 



Hah. Hagley Park, on marshy ground, growing along with 

 Physcomitrium idyriforme; in fruit November, 1878; found by 

 myself then, and afterwards by T. G. Wright in the same 

 locality. This habitat has since been destroyed through the 

 place having been drained, and now used as a racing-track. 

 I have not been able to find this moss in any other 

 locality. 



x\ specimen plant was deposited by me in the Museum, 

 1885. 



Pottia leonardi, nov. sp. Plate XXXIII. 



Plants very small, annual, pale-green, growing in small 

 loose patches. Stem about gV^^-' simple. Leaves few, closely 

 imbricating, erecto-patent. Upper lanceolate acute, narrowed 

 towards the base, concave. Margin entire. Nerve continuous. 

 Areola, upper pentagonal, lower oblong-quadrate, crisp when 

 dry. Perichcetial leaves slightly smaller than the stem ones, 

 otherwise similar. Fruitstalk terminal, ^in. long, inclined. 

 Capsule ovate, symmetrical. Peristome none. Operculum 

 oblique, conico-rostrate, stout or slender, two-thirds the length 

 of the capsule. Calyptra cucullate. 



Hah. Damp clay-banks. Port Lyttelton hills ; August, 

 1892. Collected by K. B. 



Pottia grata, nov. sp. Plate XXXIII. 



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

 gregarious. Stem most minute, simple or branched from near 

 the base. Branch fastigiate. Leaves imbricating, erecto- 

 patent, oblong-lanceolate acute or ovate-lanceolate acute, 

 concave. Margin having a border of quadrate jDellucid cells, 

 and serrated near the apex, crisp when dry. Areola, upper 

 small, pentagonal, loioer oblong-quadrate. Perichcetial leaves 

 ovate-lanceolate, acute. Margin bordered with quadrate cells, 

 serrated near apex. Nerve continuous. Fruitstalk terminal, 

 inclined, lin. long. Capsule elliptic. Peristome none. Oper- 

 culum stout, oblique, conic, about half the length of the capsule. 

 Cahjptra cucullate, covering about half the capsule. 



