IIYPNEI. 73 



reaching halfway up ; lid beaked. — Hook, fy Wils. tab. xxiv. ; 

 Eng. Bot. t. 1493.; (Plate 4, fig. 5) ; Moug.fy Nest. n. 139. 



On stones, rocks, trunks, of trees, etc., in moist, woods. A 

 common species widely diffused through Europe, except in the 

 drier parts. The fruit is ripe in autumn. 



Monoicous ; forming small, elastic tufts which are curved 

 downwards when dry ; irregularly pinnate ; branches flat, of 

 a bright shining green; leaves oblong, more or less sickle- 

 shaped, obtuse, serrated about halfway; nerye reaching half- 

 way up, often very faint, and sometimes scarcely at all trace- 

 able ; cells not s.o elongated as in the foregoing species ; sporan- 

 gium nearly erect, slightly unequal, on a long fruitstalk ; lid 

 with a long, oblique beak, almost as long as the capsule ; veil 

 hood-shaped ; outer teeth brownish, inner yellow, perforated. 



There is a closely allied species in North America. 



Oedeb V. STPJSrHI, Br. & Schimp., Mont. 

 Stem mostly imbricated and cylindrical ; sporangium mostly 

 unsymmetrical, cernuous; fruitstalk elongated; peristome 

 double, inner with sixteen teeth and intermediate cilia; 

 veil hood-shaped. 



8. HYPNUM, Dill. 



Sporangium unsymmetrical; peristome double; outer of 

 sixteen teeth trabeculated within, inner a membrane divided 

 halfway down into sixteen keeled, often perforated processes, 

 with intermediate cilia, either solitary or two or three toge- 

 ther ; stem mostly without paraphylla. 



This large genus, like Agaricus amongst Fungi, is divisible 

 into a number of distinct groups, which are regarded by au- 

 thors according to their respective views as distinct genera 

 or subgenera. I prefer greatly the latter course, and while I 



