385 



PKOTECTION AGAINST PLANTS. 



Plants injurious to forests are either weeds that cover the 

 soil, or dimbers and parasitic phanerogams or fungi, which 

 attack trees and forest plants. The 'following sections will 

 contain an account of these dangerous enemies of the forest.* 



• Hooks for reference on forest botany are : Dobner, Dr. E. Ph., " Lehrbuch 

 (ler Hotanik fiir Forstniiiuner." Berlin, 1882. Schwartz, Dr. F., " Forstliche 

 Hotanik." Berlin, 18!»2. Thaer, Dr. A., " Die landwirthschaftlichen Unkiauter." 

 Berlin, 181)3. Capital illustrations and directions how to exterminate weeds. 

 The syetematic names of the weeds are taken from Bentham and Hooker's 

 " British Flora," 5th edition, 18S7. 



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