FOREST PLANTING IN OHIO 53 



tures may be more safely made by the use of small groups of 

 tolerant and intolerant trees and each group of a single species. 

 In general, however, it is recommended that planting be confined 

 to pure stands of one species. 



CHOICE OF SPECIES 



Hardwoods. The planter has a wide range of species from 

 which to choose, but it is suggested that he confine his selection to 

 the following which are known to have merit under Ohio conditions 

 and with which he is most likely to be successful. 



Tulip poplar, Lirodendron tulipifera. The tulip poplar is one 

 of the most valuable native hardwoods. It will thrive throughout 

 the State excepting on heavy impervious or wet clays, or the 

 driest, most sterile exposures. It attains best development on 

 light clay or sandy loams of good moisture content. The tulip 

 poplar is intolerant of shade, is of rapid growth and of exception- 

 ally good form. It does well on the northerly and easterly ex- 

 posures and coves in the hilly sections of southern Ohio. On good 

 soils it will yield 25,000 board feet of lumber per acre in 40 years. 



White ash, Fraxinus Americana. White ash is a native tree 

 of high commercial value, of good form, slightly tolerant of shade 

 and of comparatively rapid growth. It thrives in all sections of 

 Ohio excepting in general the southeastern section and is easily 

 transplanted. It tolerates the heavier wet clays, but not swamps, 

 and will grow on all but the thinnest soils in the State. Ash is 

 marketable at a relatively small size. On fair soil a plantation will 

 yield 20,000 board feet per acre in 50 years. In some sections this 

 species is infested with the oyster shell scale. The infestation is 

 not always serious and should not in general deter the planting of 

 this species. 



Red oak, Quercus rubra. This species is among the most 

 rapid growing of the native oaks. It requires sites of moderate 

 fertility for best development, but will grow on all soils except the 

 poorest and the heavy wet clays. It prefers light clay or sandy 

 loams. Red oak timber is substituted for the white oak for many 

 purposes. It is of good form and may be grown in a shorter rota- 

 tion than the white oak. Its wood has many uses, chief among 

 which is railroad ties. It will yield about 25,000 board feet of 

 lumber per acre in 50 years. 



Black walnut, Juglans nigra. This is a timber of high com- 

 mercial value, chiefly for special uses. The quality of the wood 

 made it almost indispensable during the war for airplane pro- 

 pellers and gun stocks. It is in demand where wood is required 



