74 



RECOGNITION CHAI^VCTERS OF 



' Vertical or horizontal, simple or forking, deep or shallow, narrow ur wide, etc. 

 ' Hard or soft, adherent or loose, shedding in strips or in bits, etc. 

 3 Smallest diameter of an average twig in mm. 

 'Specify which kind. 

 j^ Another kind of tree of your own selection. 



