644 PROCEEDINGS OF THE ACADEMY OF [Oct., 



The following plants were noted upon the beach along Barnegat 

 Bay, near the Island Beach Life Saving Slalion, in 1901, viz., 

 Mollugo verticillata Tj. , Echiiiochloa cms- g alii (L. ) Beauv. {Pani- 

 cum crus-galli var. hiapidum), Cyperus strigosus L. and Erechtites 

 hieracifolia (L ) Raf. Wherever the wind acts with ils full trans- 

 porting power in the dune complex, the dunes of which are 

 held in place by Myrica cerifera L., Ammophila arenaria (L. ) 

 Link, Hudsonia tomentosa Nutt., Prunus maritima Wang and 



Fig. 1. 

 k. Myrica cerifera L. ; f. Uufisonia tomentosa Nutt. ; t. Pure sand. ; 

 u. Solidayo sempervirevs L. ; w. Ammophila arenaria (L.) Link. 



Rhus radicans L , there the sand is scooped out and carried away 

 with the formation of a dune hollow, into the bottom of which the 

 ground water rises by seepage The steps in this process can be 

 followed at South Sea Side Park. A dune valley, which has not 

 been brought down to the level of the ground water, may consist 

 of pure sand bottom and sides without vegetation, or if plants be 

 present, they are confined to the area of drifted sand and not to 

 the area that is wind-swept. Li such a hollow, the drifted sand 



