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THE BOOK OF NATURE STUDY 



but some show interesting adaptations for retaining and storing 

 up water. The closely set leaves hold water by capillarity 

 attraction in the narrow spaces between them, the leaves over- 



A 



FIG. 34. Leafy Liverworts. A, Diplophyllum^ upper side ; 

 B, a leaf of same ; C, Scapania. 



lapping each other like the slates on a roof. In some cases, 

 however, the leaves bear water pitchers. This is beautifully 

 shown in the Frullanias the most elegant of our liverworts. 



