140 HANDBOOK OF BRITISH MOSSES. 



incurved; leaves imbricated, ovato-oblong or oblong, shortly 

 acuminate, minutely toothed at the apex only, with a faint 

 single or forked nerve reaching halfway up ; cells narrow, ver- 

 miform, those at the angles shorter, subquadrate ; perichffitial 

 leaves erect; fruitstalk about \ an inch long; sporangium 

 ovate, tapering below, erect, regular, rarely slightly inclined 

 or bent ; lid rostrate ; outer teeth pale, adhering mostly to 

 the inner peristome, sometimes more or less abortive; inter- 

 mediate cilia often deficient. 



JT. myosuroides is with Schimper placed in Hypnum. Its 

 recurved perichsetial leaves distinguish it, as well as their 

 form, if it is considered as an Isothecium. 



14. CLIMACIUM, Web. $ Mohr. 



Sporangium subcylindrical, erect, symmetrical; peristome 

 double ; inner of 16 scalariform processes, longer than the outer 

 teeth ; columella exserted ; primary stem or rhizoma creeping, 

 secondary bare below, dendroid ; cells of leaves narrow. 



.1 . C. dendroides, Web. 3f Mohr ; leaves ovate or ovato- 

 lanceolate, erecto-patent, bisulcate, serrate above ; perichsetial 

 leaves nerveless ; sporangium oval -oblong ; lid rostrate. — 

 Hook. $ Wils. t. xxv. ; Eng. Bot. t. 1565. ; (Plate 13, fig. 2) ; 

 Mouff. ty Nest. n. 138. 



In meadows, bogs, and marshes. Bearing fruit, though 

 rarely, in autumn. 



Dioicous. Rhizoma creeping, throwing up erect stems, 

 which are void of branches below and divided above in a 

 dendroid manner ; leaves ovate or ovato-lanceolate, pointed, 

 toothed in the upper half, with a single furrow on either side, 

 nerve reaching nearly to the tip ; cells narrow, except at the 

 base and angles ; fruitstalks about an inch long, aggregate ; 

 sporangium erect ; columella exserted when dry, and raising 



