EXPLANATION OF THE PLATES. 69 



BRACHYODUS (Fig. 2). 

 BRISTLE-LEAVED MOSS. 



Chaeactekistics of Genera, (a) . 

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

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

 of sixteen teeth. Calyptra three to five, lobed at the base. Leaves (6) bristle- 

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



Beachtodus teichodes. 



Bristle-leaved Moss (a) . 

 Colour. Yellow green. 



Stems. Very short and slender, in patches. 



Leaves (6). 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 Chaeactee. 



Capsule roundish pear-shaped (pyriform), seta cm'ved 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 ujDper portion. Plants minute, tufted (see Brachyodus) . Monoicous. 



Fig. 3. Seligeeia pijsilla. 



Smallest Bristle Moss. 

 Colour. Yellow green. 



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



L 



