26o 



SAGACITY AND MORALITY OF PLANTS. 



which can be offered 

 — the genus must be 

 a very ancient one, 

 and its geographical 

 distribution must 

 have commenced be- 

 fore the present con- 

 figurations of sea and 

 land existed. 



Take the Sun- 

 dews {Droserce)y of 

 which we have three 

 British species, one 

 {I'otimdijolid) being 

 very common. The 

 leaves are covered 

 with red hairs, de- 

 veloped into glands, 

 whose summits se- 

 crete a clear drop of 

 what looks like dew 

 X, (whence the popular 

 name), but which is 

 in reality such a viscid 

 substance that it may 

 be drawn out to the 

 tenuity of a spider's 

 line. Moreover, as 

 the reader will see by referring to Darwin's sagacious 



Fig. 91. — Round-leaved Sundew {Drosera 

 rot undi folia). 



