Studies in Prairie and Woodland 



33 



Woody Species 



Ampelopsis quinquefolia 9 



Cercis canadensis (seedlings)*.. 7 



Cornus asperifolia i6 



Fraxiniis lanceolata (seedlings). 12 



Hicoria ovata (seedlings) 4 



Ostrya virginiana (seedlings)... 6 



Prunus scrotina (seedlings).... 2 



Quercus rubra (seedling) 10 



Rhus toxicodendron 2 



Tilia americana (16 inches diam.) i 



Tilia americana (seedling) i 



Uhnus fulva (seedlings) 7 



Vitis vulpina 10 



Xanthoxylum americanuin (seed- 

 lings) 3 



Herbs 



Acalypha virginica 27 



Aster sp i 



Car ex sp 34 



Chenopodimn album (ruderal).. i 



Circaea lutetiana 42 



Eupatoriun'i ageratoides 68 



Galium tinctorium 31 



Geum canadense 8 



Leptilon canadense (ruderal)... 9 



Meibomia grandiflora 46 



Menispermum canadense 27 



Muhlenbergia racemosa i 



Muhlenbergia tenuiflora 26 



Potentilla monspeliensis 9 



Smilax hispida i 



Viola sororia 3 



* All of the tree seedlings as well as the herbs were of small size and 

 showed plainly the effects of poor photosynthetic conditions. 



Figure 12. Location of the station in the linden forest at Peru. 



39 



