502 



The Ohio Naturalist. 



[Vol. VI, No. 6, 



junipers, red maples, service-berries and hop hornbeams are the 

 only representatives. The xerophytic thicket association, how- 

 ever, is well developed and consists of the following species: 



Fig. 2. A shale bank which has suffered from erosion. Here the vege- 

 tation has nearly all disappeared. A few trees still standing, indicate 

 the type of the original forest. 



Shrubs. 



Rubus nigrobaccus Bailey. 



Rubus procumbens Muhl. 



Rosa humilis Marsh. 



Aronia nigra (Willd.) 



Rhus glabra L. 



Rhus radicans L. 



Euonymus atropurpureus Jacq. 



Parthenocissus quinquefolia (L.) 



Rhamnus lanceolata Pursh. 

 Vaccinium vacillans Kalni. 

 Gaylussacia resinosa (Ait.) 

 Polycodium staniineum (L.) 

 Diervilla Diervilla (L.) 

 Lonicera glaucescens Rydb. 

 Viburnum acerifolium L. 

 Viburnum prunifolium L. 

 Cornus candidissima Marsh. 



Interspersed with and adjoining the above, were the follow- 

 ing herbaceous perennials: 



Andropogon scoparius Michx. 

 Andropogon furcatus Muhl. 

 Sorghastrum avenaceum (Michx.) 

 Muhlenbergia diffusa Willd. 

 Allium cernuum Roth. 

 Comandra umbellata (L.) 



Euphorbia obtusata Pursh. 

 Taenidia integerrima (L.) 

 Aster laevis L. 

 Solidago ulmifolia Muhl. 

 Heliantlius divaricalus L. 



