106 . HANDBOOK 01' BRITISH MOSSES. 



ing, suberect, oblong or oblongo-ovate, obtuse, entire ; nerve 

 reaching nearly to the apex ; reticulations at amplexicaul base 

 loose ; perichsetial leaves much longer ; fruitstalk even, an inch 

 long ; sporangium oblong, curved, cernuous ; lid conical. 



Much slenderer than the next, and of a different colour, 

 and very different appearance. Occasionally the stem is less 

 erect than in the normal form. 



47. H. trifarium, Web. fy Mohr ; stem erect or procum- 

 bent, irregularly and slightly branched ; branches elongated ; 

 leaves densely imbricated, roundish, obtuse, very concave ; 

 nerve reaching more than halfway, entire; sporangium ovato- 

 oblong, cernuous; lid conical. — Hook, £f Wils. t. xxxiv. ; 

 Grev. Sc. Crypt. Fl. t. 279. ; (Plate 7, fig. 5) ; Moug. $ Nest, 

 n. 516. 



In bogs and rills, principally in the water, occasionally 

 found as far south as Whittlesea Mere, Huntingdonshire, 

 which is now drained. Bearing fruit in summer, but always 

 barren in this country. 



Dioicous ; forming erect or procumbent chocolate-brown 

 patches. Stem slender, slightly and irregularly branched, the 

 branches following the same direction ; leaves imbricated, 

 often obviously trifarious, the axis being spirally twisted, 

 roundish, obtuse, very concave, entire, with a nerve reaching 

 above the middle ; cells not much dilated at base ; fruitstalk 

 even ; sporangium ovato-oblong, curved, cernuous, springing 

 from a distinct neck or apophysis ; lid conical. 



Very brittle when dry and with a very peculiar habit. 



48. H. sarmentosum, Wp,hl. ; stem prostrate below, as- 

 cending above, subpinnate; branchlets short, acute; leaves 

 spreading, elliptic or oblong, obtuse or shortly apiculate, en- 

 tire ; nerve reaching more than halfway up ; fruitstalk even ; 

 sporangium ovato-oblong ; lid conical. — Hook, fy Wils. t. lvi. 



