CHAP. II.] CiESALPINE^. , 49 



perfectly distinct in every respect ; and it only 

 takes its American name from its beans having 

 been used as a substitute for coffee. The outer 

 bark of this tree, when it becomes old, splits off 

 in narrow strips and rolls up ; and its timber, 

 like that of the Robinia or False Acacia, having 

 very little sap wood, is thus very strong in 

 quite young trees, though it is of little value 

 when the tree is full-grown. 



The species contained in the first and second 

 divisions of this order will be easily recognised 

 by botanical students ; and though those of the 

 third division are much more difficult to find out, 

 still there is a kind of family likeness, particu- 

 larly in the leaves, which will enable the eye, 

 with a little practice, to recognise them. The 

 student should visit the hothouses of botanic 

 gardens and nurseries, and should there endea- 

 vour to pick out plants belonging to this order. 



