6 



' (2) A tree or crop which has passed the exploitable age- 

 or size. " 



Pole crop or forest.— A forest crop from the fall of the 

 lower brandies to the time when the crop attains its full'- 

 height/ 



Principal species.— That kind of trees to produce which 

 the management of a forest is primarily designed. See- 

 Mixed crop. 



Protective or shelter Ibelt.— A forest which is maintained 

 as a protection against wind, snow, or other physical forces. 



Pure crop or forest or wood.— A crop formed of a single 

 species. 



Quality of locality.— The nature of the soil and climate, 

 the latter being governed by the situation. The sum total 

 of these factors represents the quality or yield capacity of 

 the locality. ..... . 



Regular forest.— A forest in which the leaf -canopy is- 

 complete and is formed by trees of approximately the same 

 age and size. 



Reserve (trees).— The trees permitted to remain after a 

 clear felling. 



Root-shoot ; or sucker. — An aerial shoot springing from a. 

 root- 



Seedling.— A young plant which results directly from the 

 germination of a seed. See Stages of growth of trees. 



Seedling crop.— A forest crop from the germination of the 

 seed to the time when the newly developed branches meet. 



Seedling forest.— A high forest. A crop composed of 

 trees which have sprung from seed. 



Semi-mature forest.— A forest in which height growth is 

 complete, but diameter growth has not begun to fall off. 



Shade-bearing tree.— A species of tree which tolerates the 

 cover of other trees. 



Sporadic species.— Trees which have a tendency to grow^ 

 distributed singly throughout a forest. 



Stages of growth of trees.— A separate individual is termed 

 a seedling from the ger^mination of the seed to the time 

 wben it begins to lose its lower branches ; a sapling when it 

 begins to lose its lower branches ; a pole from the fall of the- 

 lower branches to the time when it attains its full height j 



