PRINCIPAL TREES. 67 



LIST OP PRINCIPAL FOREST TREES OP NORTH 



WISCONSIN. 



(Arranged according to economic importance in the region.) 

 I. CONIFEKS. 



a. White pine {Finns stroius) occurs in all parts of the territory, 

 as scattering mixture in the better hardwood mixed forest of the 

 heavy soils, predominant on lighter sandy and gravelly loams and as 

 pinery proper on the extensive loamy sand areas. It is the largest 

 and most valuable tree of the region. 



b. Red pine (Norvyay Pine) (_Pimts resinosa) grows on all sandy 

 pinery areas, scatteringly in the southern, abundant in the northern 

 counties. It does not mix vrith, the hardwoods on clay land except 

 near Lake Superior, is generally mixed either vyith white or jack pine, 

 but in places forms pure stands of considerable extent. In value it 

 ranks second among the forest trees of North Wisconsin. 



c. Jack pine (Pimcs divaricata) is a small tree, grows generally in 

 thickets, either pure or mixed, stocks all poor sandy lands and unlike 

 the other pines, it also occupies part of the openings. It is of limited 

 economic value. 



2. HEMLOCK. 



Hemlock (Tsuga canadensis) grows on all clay and loam lands of the 

 eastern half of North Wisconsin; is either mixed scatteringly or evenly 

 vyith the hardwoods or else predominates in bodies of variable extent. 

 The hemlock is a large tree, grows slowly, is easily killed, even by 

 mere exposure, and is not reproducing itself well in most parts of 

 this region. It is of greater economic value than is generally be- 

 lieved. 



3. CEDAE. 



Cedar — This tree, commonly called white cedar or simply cedar, 

 should receive the name arborvitse {Thuya occidentalis) to distinguish 

 it from other cedars. It is a medium sized tree of the swamps and 

 the moist portions of the upland mixed forests. It occurs in most 

 counties and prevails in the swamps of the Green Bay region; a tree 

 of considerable value. 



