114 Field, Forest, and Wayside Flowers 
to whatever it can reach. Always on the Irish 
Gorse, and sometimes on growing tips of our 
native barberry bushes, leaves are metamorphosed 
Fic. 23.—A climbing spray of the pea. (The topmost leaflets 
are converted into tendrils.) 
(From the Vegetable World.) 
into thorns. In the case of the cactus, and some 
other succulent dwellers in thirsty lands, they are 
transformed into prickles, 
