70 REPORT OF NEW JERSEY STATE MUSEUM. 



Cyperus grayi. 



" filiculmis macilentus. 

 Carex umbellata. 

 Hudsonia ericoides. 



Arenaria caroliniana. 

 Lechea racemulosa. 

 Euphorbia ipecacuanhae. 

 Cracca virginiana. 



The Cedar swamps (see PI. CXXVII) which Hne all the 

 streams oi the Pine Barrens possess quite a different flora, some 

 of the characteristic species being: 



Chamaec3'paris thyoides. 

 Magnolia virginiana. 

 Acer rubrum carolinianum. 

 Clethra alnifolia. 

 Nyssa sylvatica. 

 Alnus rugosa. 

 Ilex glabra. 

 Viburnum nudum. 



Rhus vernix. 

 Carex folliculata. 

 " trisperma. 

 Drosera rotundifolia. 

 Osmunda cinnamomea. 

 Vaccinium corymbosum. 



" atrococcum. 



Azalea viscosa. 



The natural open bogs are characterized by the presence of 

 such species as : 



Oxycoccus macrocarpcn. 

 Sarracenia purpurea. 

 Orontium aquaticum. 

 Castalia odorata. 

 Nymphcea variegata. 

 Utricularia spp. 

 Pogonia ophioglossoides. 

 Limodorum tuberosum. 



Eriocaulon decangulare. 



" compressum. 



" septangulare. 



Drosera longi folia. 

 Polygala lutea. 



Blephariglottis blephariglottis. 

 " cristata, etc. etc." 



The curious elevated tract known as the Plains (see PI. 

 CXXVIIL), which covers portions of Burlington and Ocean 

 Counties, presents a stunted vegetation scarcely higher than one's 

 knees, consisting mainly of Pimts rigida, Quercus marilandica 

 and Q. ilicifolia, but with all the characteristic species of the open 

 pine woods. The additional species more or less peculiar to the 

 Plains are Corona conradii and Arcfosfaphylos iiva-ursi. 



* The above lists are by no means exhaustive, and are simply given to call 

 attention to some of the dominant or more conspicuous species of the several 

 types of environment to be found in the Pine Barrens. No attempt has been 

 made toward an "ecological" study of the region. While much valuable work 

 has been done along true ecological lines, a certain amount of discredit 

 appears to have been thrown upon the term by the fragmentary and super- 

 ficial work presented under this title by certain writers. The hasty division 

 of a flora into various societies and associations is a case in point. To my 

 mind the only proper basis for work of this kind is the detailed study of a 

 number of similar spots in a given area, such as the various patches of 



