238 



HANDBOOK OF BRITISH HEPATICiE. 



outer convolute, appressed, broader than long, 

 margin entire or eroded, inner two, 

 shorter, pellucid, margin lobate- 

 dentate, closely embracing each 

 other. Calyptra top-shaped, of thin 

 texture. Capsule reddish brown. 

 Spores brown, granular. Perigonial 

 leaves terminal on more slender 

 stems, broadly ovate, with a hyaline 

 ragged margin. Antheridia 

 roundish, one or two together, on 

 slender pedicels. Intermediate be- 

 162. 163. tween G. concmnatnni and G. creym- 

 laUim. The leaves closely pressed together, so as 

 not to be easily detached, entirely, or almost, 

 smooth at the edges, and with none of the cells pro- 

 jecting beyond the others (fig. 163). 



Gymnomitrium crenulatum, Gottsche. 



Tufts depressed, lurid brown ; barren shoots 

 slender, rather terete, acute and arcuate ; 

 leaves broadly ovate, complicate-concave, 

 closely imbricate ; apex bidentate, sinus 

 narrow, lobes acute, connivent ; margin cre- 

 nulate, hyaline. Fertile shoots ovate, acute 

 at the apex, outer involucral leaves convolute- 

 conoid. 



Gyninomitriuni crenulatmn^ Gottsche and Rab. 

 Ers. No. 478 ; Carr. Glean., p. 18, t. i, f. 5 ; 

 Carr. Brit. Hep., p. 9, t. i, fig. 3 ; Carr. and 

 Pears. Exs. No. 2, 3 ; Cooke Hep. figs. 

 17, 18. 



