As a ground layer, or sixth layer, the forest of the Navesink 

 Highlands has a forest floor consisting of litter and leaf mould, 

 the brownish gray monotony of which is relieved by green 

 cushions of Polytriclmm sp., trailing mats of Epigaea repeus L., 

 and isolated plants of Cypripediinn acmile Ait. 



Vegetation on the Hill Slopes 

 The forest on the slopes of the Navesink Highlands (Fig. 3) 

 comes down to a narrow sand-gravel beach, or it comes in con- 

 tact with small areas of salt marsh.* The immediate shore line 



Fig. 3. Wooded slope, Navesink Highlands, showing deciduous forest on north 

 slopes and the shore-line protected by loose rocks. 



of the beaches is characterized by salt water plants, but on the 

 upper beach grows an association of species including Baccharis 

 haliniifolia L., Rhics copallina L., Sambuais canadensis L., Solidago 

 sempervirens L., Hibiscus niosclieiLtos L., Xantldum canadense 

 Mill, Convolvidus sepiiun L., and Eupatorinm perfoliatuni L., 

 which tend to mingle with trees of the bluff face, such as Celtis 

 occidentalis L., Jimiperiis virginiana L., Vitis Labnisca L., and 

 Rhus radicans L. ■ 



* Harshbergei', John IV. I. c. 



