4 SYNOPSIS OF BRITISH MOSSES. 



obtuse, spreading, scarcely crisped wlien dry. Caps, 

 elongate-elliptical, lid with a short beak, annulus 

 broad. Perist. absent or rudimentary. Dioicous. 



10. Weissia, Eedw. Small, csespitose, dichotomous. 

 L. lanceolate or linear-lanceolate, subulate, crisped 

 when dry, minutely papillose, nerved, apical cells 

 minute, quadrate, chlorophyllose, basal rectangular, 

 hyaline ; per. 1. scarcely sheathing. Perist. 1. 16, more 

 or less irregula,r, punctulate. Annulus none or very 

 narrow. Monoicous. 



11. Dieranoweissia, Lindb. PI. taller, fastigiate, 

 L. patent, flexuose, crisped when dry, smooth or 

 very slightly papillose, apical cells quadrate, basal 

 rectangular, broader at angles ; per. 1. sheathing. 

 Caps, elliptic elongate, lid subulirostrate. Perist. t. 

 perfect, lanceolate, bifid at apex. 



12. Rhabdoweissia, B. and S. PI. small, dicho- 

 tomous, monoicous. L. long, narrow, crisped when 

 dry, shortly papillose above, margin serrulate or erose, 

 cells quadrate or hexagonal, basal hyaline, lax. Caps. 

 8-striate, 8-sulcate when dry, truncate and wide- 

 mouthed when ripe, teeth from a broad base shortly 

 sub date, verruculose, lid subulirostrate. Calyptra 

 large, cucuUate. Spores large, punctulate. 



Tribe v. Diceanace^. 



L. between broadly and narrowly lanceolate and 

 lanceolate-subulate, smooth or papillose at apex, upper 

 cells quadrate, lower hexagono-rectangular or linear, 

 quadrate at angles, nerve broad. Calyptra large, 

 cucuUate. Caps, on a long seta, cernuous, rarely 

 erect, regular or incurved and subarcuate. Perist. t. 



