46 



ROLAND M. HARPER 



TABLE C (CROWLEY'S RIDGE) 



SHRUBS AND VINES 



Aralia spin-osa 

 Batodendron arbor eum ' 

 Rhus radicans 

 Rhus copallina 

 Berchemia scandens 

 Asimina parviflora 

 Vitis rotundifolia 

 Hydrangea arborescens 



HERBS 



Anthemis Cotula 

 Helenium tenuifolium 

 Perilla frutescens 

 Solidago caesia 

 Cracca Virginiana 

 Polystichum acrostichoides 

 Podophyllum peUatum 

 Phegopteris hexagonoptera 

 Vagnera racemosa 

 Equisetum hyemale 

 Cunila Mariana 

 Arisaerna Dracontium 



TREES 



Cornus florida 

 Quercus alba 

 Quercus velulina 

 Fagus grandifolia 

 Ostrya Virginiana 

 Acer Floridanum 

 Morus rubra 

 Diospyros Virginiana 

 Ulmus Americana? 

 Cercis Canadensis 

 Magnolia acuminata 

 Sassafras variifolium 

 Quercus falcata 

 Gleditschia triacanthos 

 Quercus stellata 

 Quercus Marylandica 

 Pinus echinata 

 Liriodendron Tulipifera 

 Quercus Muhlenbergii 

 Celtis sp. 



Fraxinus Americana 

 Hicoria alba 

 Quercus Michauxii 

 Platanus occidentalis 

 Quercus coccinea 



The first three herbs are only roadside weeds. In traveUng by 

 rail through a hardwood region one always sees more species of 

 trees than of native herbs, but here I^was on foot and had ample 

 opportunity to see all the herbs that were in recognizable condi- 

 tion. That the list of trees should still be about twice as long 

 as that of herbs under these circumstances is rather interesting, 

 but not easy to explain in a few words. 



One representative of the Ericaceae, a semi-evergreen at that, 

 appears in this list, namely, Batodendron arhoreum. It was con- 

 fined to the driest ridges. The only evergreen tree is Pinus 

 echinata, and that was seen only on the precipitous eastern slope ; 

 which agrees with Call's observation that in this region it is 

 absent from the loess and confined to the Tertiary sands and 

 gravels. Call reports Gymnocladus Canadensis and Xanthoxylum 

 Clava-Herculis as common on Crowley's Ridge, but he does not 



