CLASSIFICATION OF ANGIOSPERMS 



559 



(storax), which is obtained from a very similar tree (L. 

 orient alis) . 



f. PLATANACE^ OR PLANE TREE FAMILY.— This 



Fig. 313. Branch of Witchhazel (Hamamelis virgitiiana) showinR alternate, short- 

 petiolate and pinnate-reticulately veined leaves, having a broadly oval ir ol>ovate out- 

 line, round, acute, or slightly acuminate apex; slightly cordate, inequilateral base; and 

 undulate or sinuous margin. 



/amily consists of but one genus, Platanus, of whicli there are 

 7 species. It includes the sycamore or buttonwoud {Platanus 

 occidentalis) , one of our largest trees, easily recognized by its 



