FREE INSTITUTE OF SCIENCE 



25 



THE VEGETATION OF THE HACKENSACK marsh: A TYPICAL AMERICAN FEN 



Lespedeza hirta (L.) Hornem. 



Sterile soil on Little Snake Hill. 

 Medicago sativa L. (Alfalfa). 



Roadsides and railroad embankments. 

 Melilotus alba Desr. (White Melilot). 



Roadsides. Common. 

 Melilotus officinalis (L.) Lam. (Yellow Melilot). 



Roadsides. Common. 

 Trifolium arvense L. (Rabbitfoot Clover). 



Dry gravelly roadsides. 

 Trifolium pratenseh. (Red Clover). 



Common in fields. 

 Trifolium procumhens L. (Low Hop Clover) . 



Sandy grounds and roadsides. 

 Trifolium repensl^. (S^hite Clover). 



Common by roadsides and paths. 



SiMARUBACEAE 



Ailanthus glandulosa Desf. (Tree of Heaven). 

 Thickets along banks near Arlington. 



EUPHORBIACEAE 



Acalypha virginica L. (Three-seeded Mercury). 



Belleville Turnpike Embankment. Rare. 

 Euphorbia maculata L. (Milk Purslane). 



Makes great mats of dull red foliage on gravelly railroad embankments. 

 Euphorbia Preslii Guss. 



Belleville Turnpike embankment. Rare. 



. Anacardiaceae 

 Rhus glabra L. (Smooth Sumac) . 



Dry banks and meadows. Common. 

 Rhus Toxicodendron L. (Poison Ivy). 



Very common over rock and along embankments. 

 Rhus iyphina L. (Staghorn Sumac). 



Little Snake Hill. 



Celastraceae 

 Celastrus scandens L. (Climbing Bitter Sweet). 



Common on rocky banks of Little Snake Hill. 



/ 



