146 HANDBOOK OF BRITISH MOSSES. 



21. PHILOSCIA, Berk. 



Sporangium erect, symmetrical, tapering below ; ring de- 

 hiscent ; peristome double ; teeth of outer peristome spreading 

 and incurved when dry; inner deeply divided without inter- 

 mediate cilia ; leaf-cells narrow above, elongated, broad at the 

 base, and especially at the angles. 



1. P. latebricola, Berk. ; stem slender, ascending, sparingly 

 branched ; leaves ovato-lanceolate, tapering, subsecund, entire, 

 faintly two-nerved at the base; margin slightly reflected; spo- 

 rangium elliptic-oblong, tapering below, erect ; lid conical. 

 Hook. $ Wils. t. liv. 



On moist shady rocks, on decaying alder-stumps and old 

 Aspidium Filix-mas. Cheshire, Lancashire, and Sussex. 

 Bearing fruit in winter. 



Dioicous; forming yellowish or bright -green shining tufts. 

 Branches slightly flattened ; leaf-cells narrow, broader at the 

 base ; inner peristome without intermediate cilia. 



This is referred by Schimper to Plagiothecium, but the erect 

 sporangium and absence of intermediate cilia forbid the asso- 

 ciation. It differs from Leskea in the nature of the leaves, 

 which differ again from those of Orthothecium, with which it 

 might otherwise have been classed. 



22. MYBJNIA, Schimp. 



Sporangium symmetrical or slightly curved ; ring none ; 

 peristome double, small; inner peristome without intermedi- 

 ate cilia, firm, coloured ; leaf-cells rhomboid, quadrate at the 

 angles ; paraphylla none. 



1. M. puTvinata, Schimp. ; stem irregularly divided, procum- 

 bent ; divisions slender, erect ; leaves ovato-lanceolate, entire, 

 loosely reticulated, with two nerves, or one reaching halfway ; 



