SYLVICULTURE. 



the presence of a few strikingly large and spotless trees overtower- 

 ing their neighbors; absolute lack of permanent means of trans- 

 portation. 



II. Subdivision of primeval forms of high forest. 



According to the relative share held by species of " weed trees " 

 in the mixture of species composing them, the primeval forests 

 might be subdivided into pauci, multi and oinnivendible forests. 

 Primeval woods, in which only 10% of the timber species command 

 a value, might be called " paucivendible "; at 50%, the term 

 " multivendible " and at approximately 100%, the term " omnivend- 

 ible " might be applied. 



The vendibility of the members composing the forest, whilst it 

 controls the possibility and the manner of its sylvicultural man- 

 agement, does not influence, however, the actual display of the 

 forest in the slightest degree. 



It will be best, consequently, to subjoin the viewpoint of 

 vendibility to the viewpoint of actual composition of the forest 

 as displayed in the size of its composing parts notably of its age- 

 classes. 



Thus we arrive at: 



a. A selection form, where the age-classes raised are mixed 

 by trees or small patches a very uneven-aged form; 



b. A group form, where the age-classes raised are segregated 

 in groups occupying from one-tenth to four acres; 



c. A compartment form, where the age-classes raised are segre- 

 gated in large, coherent areas (coves, slopes) covering from twenty 

 to one hundred acres a very evenaged form of forest. * 



The epideta " paucivendible," " multivendible " and " omnivend- 

 ible " added to the terms " selection form," " group form " and 

 " compartment form " readily explain, in crude lines, the sylvi- 

 cultural as well as the economic display of a primeval forest. 



The groups or the compartments often show a sprinkling of 

 huge trees known as " standards," having a much higher age and 

 frequently belonging to a species different from that or those form- 

 ing the main growing stock. Instances are: 



Yellow Poplar standards in Beech compartments; 



White Pine standards in Balsam compartments; 



Yellow Pine standards in Oak groups; 



Cuban Pine standards in Cuban Pine groups; 



Long-leaf Pine standards in Cuban Pine groups. 



Naturally, where the standards belong to several age-classes and 



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