PHANEROGAMIA, 275 
are soon dissolved by it, and then absorbed by the plant 
for its nourishment. 
551. An Australian plant related to the Saxifrages pro- 
duces remarkable pitchers. It is alow plant with a rosette 
of leaves upon the ground; some of these resemble the 
covered pipes used by many Frenchmen (Fig. 152). The 
border of the pitcher is incurved and presents an obstacle 
to the egress of insects, which are no doubt thus captured. 
zy ti 
Fic. 152.—Leaves of Australian Pitcher-plant (Cephalotus). Natural size. 
552. There is a close connection between the ornamental 
value of a plant and the perfection of its flower as a mech- 
anism to secure pollination by means of insects. In other 
words, those things in a flower which are attractive to in- 
sects are, as a rule, attractive to us also. Thus the large, 
brightly-colored perianth and the sweet scent of the wild 
rose, which serve to secure the visits of insects, are like- 
wise attractive to us. 
553. The Apetale are thus of low ornamental value in 
so far as their flowers are concerned. The Gamopetale 
