118 



LEAF-TRACES 



[CH. 



Now it is Doteworthy that the numbers and arrange- 

 ment of these leaf-traces are very constant in the leaf- 

 scars of the various species of trees and shrubs, as Schwartz 

 and other forest-botanists, and especially Schneider, have 

 shown. 



Or 



h 

 m 



n 







y (^ ^ v^ w^ 



<5> fe? ^^$^ 

 r s t 



9 



P 

 u 



V 



w 



^ (U) (U) "O 



X 



y 



Fig. 59. Types of leaf-scars, a Fig ; h Horse-chestuut ; c Ailanthm 

 d Walnut; e Vine; /Maple; g Pyrus, Willow, Sycamore; h Eose; i Rhus 

 k Plane ; I Quercus Ccrris ; m Elm ; n Oak ; o Lime ; p Chestnut ; q Primus 

 r Privet; s Ilipjwphae; t Mulberry; u Hornbeam; v Birch; w Viburnum 

 a; Ash ; y Alder. 



