LIVERWORTS 115 



botanist, who first discovered it in the South of 

 Ireland. It also rejoices in very moist surround- 

 ings, generally growing on rocks over which the 

 water trickles, or in the splash of some waterfall, 

 and is comparatively rare. I well remember 

 finding it in Devonshire, growing like a weed 

 at the back of a small cascade, in the middle of 

 a dark wood, and shall not easily forget the thrill 

 of pleasure with which I recognised it. The 

 leaves, it will be noticed, are rounded at the end, 

 and bear a few rather large teeth, and the under- 

 leaves are very noticeable, occurring at intervals 

 on the lower side of the stem. They are specially 

 distinctive in form, as will be seen from Plate X. 

 fig. 34, where one is given on a larger scale. In 

 the Notch-leaved Liverwort (Jungermannia ex- 

 secta, Plate VIII. fig. 16) an occasional dweller 

 on heaths or in woods the leaves, which grow 

 closely overlapping each other, are peculiar in 

 form, and the strikingly notched margin has, 

 no doubt, suggested the specific name given to 

 the plant. 



Having now made the acquaintance of some 

 typical plants belonging to the leafy order, let us 

 next turn our attention to a few of the frondose 

 group, though it must be at once admitted that 

 these have not the same attractions, either with 

 regard to colour or form, as the various species 

 that we have been considering. Plate VIII. 

 fig. 17 represents a small piece of the Many- 



