R. Brown.— On N.Z. Musci. 327 



Genus Gymnostomum. 



1. G. salmonii, sp. nov. Plate XXXV., fig. 1. 



Plants monoecious, perennial, growing in gregarious 

 patches. Stems y^-in., branching from the base. Leaves few 

 and small, erecto-patent, ligulate, rounded at the apex, obtuse 

 or acute ; margins entire ; nerve ending below the apex. 

 Areola small. Perichcetial leaves longer than the stem ones 

 and broader at the base, clasping the fruitstalk; nerve ending 

 below the apex. Fruit acrocarpous. Fruitstalk slender, 

 yellow, inclined, £■ in. long. Capsule yellowish, ovate, very 

 small, with a reddish ring round the mouth. Operculum 

 nearly as long as the capsule, conico-rostrate, oblique, 

 stoutish. Peristome none. Galyptra small, cucullate. 



Hab. On damp limestone rocks near Weston, close to 

 Oamaru. Collected by R. Brown, November, 1897. 



This moss is very rare and local, and so small that the 

 rock had to be cut with a knife to obtain the plants entire. 

 So far this is the only habitat known. Named after Ernest 

 S. Salmon, Kew House, Kew. 



2. G. brotherusn, sp. nov. Plate XXXV., fig. 2. 



Plants monoecious, perennial, growing in large dense tufts 

 as much as 7 in. diameter, reddish-brown. Stem l^in. long, 

 matted with radicles, branches fastigiate. Leaves imbricating, 

 small, erecto-patent, ligulate, obtuse or rounded at the apex; 

 margins entire; nerve ending below the apex. Areola: 

 Upper small, roundish ; lower oblong ; nearly erect when 

 dry. Perichcetial leaves smaller than the stem ones, inner- 

 most smallest, clasping the fruitstalk ; nerve ending below 

 the apex. Fruit acrocarpous. Fruitstalk red, inclined, about 

 ^ in. long. Capsule inclined, ovate. Operculum stout, 

 oblique, conico-rostrate, two-thirds the length of the capsule. 

 Peristome none. Galyptra cucullate. 



Hab. On wet rocks in a small abandoned quarry at 

 Weston, near Oamaru. Collected by Robert Brown, Novem- 

 ber, 1897. 



Plants rare, being confined to the above-named habitat. 



Named after Dr. Brotherus, of Helsingfors. 



3. G. gibsonii, sp. nov. Plate XXXV., fig. 3. 



Plants monoecious, perennial, growing in dense patches 

 about lin. high, bright-green above, brown below. Branches 

 dense, fastigiate. Leaves small, closely imbricating, erecto- 

 patent or slightly recurving, linear-lanceolate, acute or 

 acuminate ; margins entire ; nerve ending slightly below the 

 apex. Areola: Upper small, roundish ; lower larger, oblong ; 

 leaves erect when dry. Perichcetial leaves very similar to 



