420 I'ROTECTION AfiAINST PLANTS. 



8. Chissificuttiou of Forest JVecds accordiucj to their Powers 

 of Injury to Forests. 



Hess has classilied forest weeds as very injurious, less, and 

 least injurious. As the amount of harm that weeds occasion 

 varies greatly with circumstances, it would appear to he 

 sufticient to give the following list of the most injurious 

 forest weeds : — 



Woody Plants. 

 Broom (To conifers). 

 Heatlier. 

 Brambles. 

 Aspen. 

 Bilberry. 

 Mistletoe. 

 Loranthus. 

 Blackthorn. 

 Forest Willows. 

 Birch. 

 Honeysuckle. 



Herbaceous Plants. 

 Grasses. 

 Bracken. 

 Sphagnum. 

 Dodder. 

 Bindweed. 

 Epilobium. 



And other tall weeds, when growing in masses. 



