234 THE PLANT LIFE OF MARYLAND 



(Viburnum prunifolium) . Other woody plants or trees are Hy- 

 drangea arborescens, Ribes cynosbati, Asimina triloba, Carpinus 

 caroliniana, Juglans nigra and Juglans cinerea, in somewhat larger 

 numbers than at previous places of record, and Acer nigrum is 

 recorded for the first time in this area. 



It will be convenient in following the geography of the region, 

 to pass southward along Catoctin Mountain as it divides from the 

 Blue Ridge proper. The upper portions of the mountain are 

 formed of resistant sandstone and the resulting soil is of a poor 

 character, supporting a typical xerophytic vegetation, the slopes 

 from the crest to the east are often steep and rugged, the top being 

 to a large degree level. 



The characteristic vegetation of the Mountain includes a large 

 proportion of the Bear Oak, Laurel and Sweet Fern. With these 

 in less conspicuous abundance are the following: 



Baptisia tinctoria 



Dasystoma pedicularia 

 Lcspedcza striata 

 Pteris aquilina 

 Gaylussacia frondosa 

 Potentilla monspeliensis 

 Solidago bicolor 

 Lobelia inftata 

 Solidago juncea 

 Epigea repens 

 Dioscorea villosa 

 Cracca virginiana 

 Apocynum androsaemifohum. 



In hollows where water accumulates, or some spring reaches the 

 surface, there are small patches of Sphagnum, and associated plants. 

 In one such spot Limodorurn tuberosum was found, entirely removed 

 from what normally constitutes its habitat ; but the decomposed 

 sandstone, with the pocket of moist sphagnum made the contrast 

 between a low-ground sandy bog and the present spot less striking 

 than appears at first. 



