6 



NORTH AMERICAN FAUNA 66 



Figure 3. — Biotic sections of Maryland. 



there are many upland and lowland swamps in which occur sweetgum 

 {Liquidarribar styracifjua) ^ blackgum {Nyssa slyvatica) ^ red maple 

 {Acer rubrum) , pin oak {Qibercm paltistis), and American holly (Ilex 

 opaca) . Along the Pocomoke River there are many plants with south- 

 ern affinities such as bald cypress {Tacodium distichum), red bay 

 {Persm horhonia), horse-sugar {Symplocos tinctoria), water oak 

 {Querms nigra) ^ cross vine {Bignonia capreolata)^ and laurel-leaved 

 greenbriar {Smilax laurifolia) . In the northern part of this section the 

 upland forests are almost entirely deciduous and of the oak-hickory 

 type. In addition there are such habitats as barrier beaches, salt 

 marshes, and brackish marshes. Elevation is under 100 feet, and the 

 topography is flat. 



Western Shore Section 



The upland forests of the Western Shore section are composed of 

 scrub pine {Pinus virginiana) stands, oak-hickory forests, or a mix- 

 ture of the two. In the southern part loblolly pine is common, and in 

 the sandy soil of the northern part pitch pine {Pinus rigida) fre- 

 quently predominates. Rich moist upland forests of white oak 

 {Quercus alba) and tulip poplar {Liriodendron tulipifera) occur lo- 

 cally throughout the section. Small seepage areas are frequent and 

 usually support an upland swamp forest type that contains a well- 



