Proceedings of the Columbus Horticultural Society. 37 



the line of separation follows near the moraine, north and 

 sli<:jhtly east to northeast Knox County and then in a north- 

 bending curve to the state line. Extreme northwestern Ohio 

 may also fall in this region. 



3. The Lake Erie Regio?i — The Lacustrine. 



This region includes the present inlets, marshes, and beaches 

 of Lake Erie, also the ancient beaches or deep sands of the 

 Oak-openings now some distance from the lake. Such sands 

 are found in Fulton, Lucas and Henry ; they are continued 

 across Ohio in Sandusky, Erie, Lake and other counties. 



4. T/ic Western Region — The Calcareous. 



The western region includes almost half the state, all 

 glaciated, extending from Erie, Crawford, Morrow, Delaware, 

 Franklin and Pickaway counties westward to Indiana and 

 southward to Highland and Hamilton. The prairie plants are 

 chiefly limited to this western region. There follow short lists 

 of the indigenous plants of these regions : 



Typical Species of the Neo- Appalachian Region. 



Pinus Virginiana, 

 Pinus rigida, 

 Uniola latifolia, 

 Panicularia nervata, 

 Habenaria peramrtna, 

 Corallorhiza Corallorhiza, 

 Betula nigra, 

 Betula lenta. 

 Castanea pumila, 

 Qucrcus nigra, 

 Phoradendron llavescens, 

 Silene rolundifulia, 

 Alsine pubcra, 

 Trolliiis laxus, 

 Liquidambar Styraciflua, 

 Portcranthus stipulatus, 

 Stylosanthes biflora, 

 Acalypha ostryii.folia, 

 Ilex opaca, 



Tilia heterophylla, 

 Ascyrum hypericoides, 

 Araiia spinosa, 

 Azalea lutea, 



Rhododendron maximum, 

 Kalmia latifolia, 

 Oxydendrum arboreum, 

 Chionanthus X'irginica, 

 Gentiana villosa, 

 Ampelanu8 albidus, 

 \'inccto\icuni gonocarpos, 

 Trichostcma dicbotomum, 

 Dasystoma In vig;ita, 

 Bignonia crucigera, 

 Triosteum angustifoliura, 

 Lobelia pubcrula, 

 Chrysopsis Mariana, 

 Coreopsis major, 

 Coreopsis auriculata. 



Northern and southern forms are here mingled. Many^ of 

 the typical plants of this region are included in the list of 

 plants from the south and southeast, while not a few have a 



northeastern range. 



CD 



1^ 



