EXPLANATION OF THE PLATES. 



69 



BRACHYODUS (Fig. 2). 

 BRISTLE-LEAVED MOSS. 



Characteristics of Genera, (a) . 

 Capsule erect, oblong, its walls thin, striated, and when dry furrowed. 

 Annulus very broad, peristome very short, hardly rising above the annulus ; single, 

 of sixteen teeth. Calyptra three to five, lobed at the base. Leaves (b) bristle- 

 like, the nerve forming the whole of their upper portion. Plants very minute. 



Brachyodus trichodes. 

 Bristle-leaved Moss (a) . 



Colour. Yellow green. 



Stems. Very short and slender, in patches. 



Leaves (b) . Lanceolate-subulate, almost round, the nerve forming their upper 

 portion. 



Capsule. Erect, oblong, when dry furrowed, striated. Spring. 

 Locality. On rocks in subalpine districts. 



The only known British species, scarcely to be distinguished from Seligeria. 



SELIGERIA. 

 BRISTLE MOSS (Figs. 3-6). 

 Fig. 6 (a) . Generic Character. 

 Capsule roundish pear-shaped (pyriform) , seta curved or straight, lid large. 

 No annulus (see Brachyodus) . Peristome single, of sixteen teeth, lanceolate, 

 obtuse, with rings {articulate) . Leaves very narrow, the nerve almost forming 

 their upper portion. Plants minute, tufted (see Brachyodus) . Monoicous. 



Fig. 3. Seligeria pusilla. 

 Smallest Bristle Moss. 



Colour. Yellow green. 



Stems. Scarcely any, not branched or forked (simple) . 



L 



