14 



As a further step in the investigation, the writer ques- 

 tioned the person from whom the original rhizome was re- 

 ceived. He recollected having gotten some plants about 

 twelve years ago for his private pool, from Pohatcong Lake, 

 Tuckerton, New Jersey. In order to verify the plant's occur- 

 rence there, a trip was made by me to this lake. Unfortunately, 

 due to the lateness of the season, there were no flowers left 

 in bloom, except a small colony of Nymphaea odorata in a 

 sheltered lagoon; however, the under surfaces of hundreds 

 of leaves were examined. Most of them were the typical 

 red color of Nymphaea odorata, but quite a number of colonies 

 had leaves with green under surfaces, similar to the specimens 

 from Collingswood. This latter fact, together with the presence 

 of what appeared to be small tubers on the rhizomes, seemed 

 to indicate that Nymphaea tuherosa Paine does occur in the 

 lake. This would make the fifth station in southern New 

 Jersey. However, until flowering specimens with rhizomes 

 have been collected, and a more extensive study has been 

 made, nothing w^ith certainty can be said regarding its occur- 

 rence in Pohatcong Lake. 



This article was written principally to record the presence 

 of this rare species of water-lily at Collingswood, and also 

 to give the history of its introduction in order to prevent 

 confusion among botanists regarding its occurrence there, 

 since in the future the local account of its introduction might 

 be lost. 



Herbarium of the University of Pennsylvania 



