MARYLAND WEATHER SERVICE 113 



species that are subordinate in the Upland are here more abundant. 

 Among these Sweet Gum, White Oak, Sour Gum, Willow Oak, Red 

 Maple and Swamp Oak are the most frequent, while Holly and Cow 

 Oak are occasional. In many localities the Loblolly Pine forms 

 as little as 10% or 15% of the stand. 



The shrubs are richer in the number of individuals than in any 

 other forests of the Eastern Shore District, comprising: 



Clethra alnifolia 

 Xolisma ligustrina 

 Vaccinium corymbosum 

 Azalea viscosa 

 Lcucothoe racemosa 

 Viburnum dentatum 

 Itea virginica 

 Viburnum prunifolium 

 Magn olia virginiana 

 Ilex verticillata 

 Cornus florida 

 Alnus rugosa. 



The dense shade of the trees and shrubs makes the floor of the 

 Clay Upland Swamps very poor in herbaceous vegetation. The 

 only common species are: Carex caroliniana, Carex comosa, Panic- 

 ularia pallida, Carex lupulina, Carex hirta. 



Thin and scattered beds of peat moss (Sphagnum) are extremely 

 abundant in the swamps, although unaccompanied by any charac- 

 teristic bog plants. In depressions in the forest where there is 

 standing water throughout at least the early summer may be found 

 a richer representation of palustrine plants. 



Myriophyllum verticillatum 



Polygonum liydropiper 

 Isnardia palustris 

 Proserpinaca palustris 

 Lycopus rubellus 

 Triadenum virginicum 

 Gratiola sphaerocarpa 



