LOBLOLLY OK NORTH CAROLINA PINE. 13 



stands on the hills near the rivers and is gradually extending away from 

 the streams, in spite of the increasing dryness of the soil. 



The growth in the old fields along the eastern edge of the Piedmont 

 plateau in many places is nearly pure loblolly pine. Where young trees 

 of the shortleaf pine appear they are often OA^ertopped and suppressed, 

 being outnumbered and overgrown by the loblolly pine. To the west- 

 Avard, however, there are fewer seed trees, and Avhere there is competition 

 betAveen the tAvo species, the shortleaf pine has the advantage, except on 

 moist or sandy soils. 



ASSOCIATED SPECIES. 



With such a wide range of soil adaptability loblolly pine is associated 

 with many species and is a component of many forest types. In the 

 mixed stands in the SAvamps and on poorly drained sites some of the 

 associated species are fully as valuable as the pine and are well adapted 

 to silvicultural purposes. Other species are less valuable than the lob- 

 lolly. The folloAving list gives the most important associated species. 



List of the Most Important Species Associated With Loblolly 

 Pine in Order of Their Relative Importance. 



TREES. 



Longleaf pine Pinus palustris. 



Shortleaf, spruce or rosemary pine Pinus echinata. 



Sweet or red gum Liquidambar styraciflua. 



Water gum Nyssa aguatica. 



Southern red oak Quercus digitata. 



Swamp red oak Qtiercus pagodcefolia. 



Pocoson, black bark or pond pine Pinus serotina. 



Red maple Acer ruhrum tridens. 



Yellow poplar Liriodendron tulipifera. 



Water oak Quercus nigra. 



Green ash Fraxinus lanceolata. 



Deep swamp ash Fraxinus profunda. 



Water ash Fraxinus caroliniana. 



White elm Ulmus americana. 



White hickory Hicoria alba. 



Sand hickory Hicora pallida. 



White oak Quercus alba. 



Swamp white or swamp chestnut oak Quercus Michauxii. 



Post oak Quercus minor. 



Round leaf blackjack oak Quercus marylandica. 



Forked leaf or sand blackjack oak Quercus Catesbcci. 



Runner oak Qtiercus Margaretta. 



Black gum Nyssa sylvatica. 



Tupelo gum Nyssa uniflora. 



Cottonwood Populus deltoides. 



SHRUBS. 



Gallberry Ilex glabra. 



Tall gallberry Hex lurida. 



Fetterbush Andromeda, several species. 



