TORREYA """'^""'^ 



Vol. 39 September-October, 1939 No. 5 



Contributions to the Flora of New Jersey 



Robert T. Clausen 



Recent collecting in various parts of New Jersey has led to 

 the preparation of the present report. Names of herbaria are 

 abbreviated as (BH) Bailey Hortorium of Cornell University, 

 (Claus) private herbarium of R. T. Clausen, (Corn) herbarium 

 of the Department of Botany of Cornell University, (Edw) 

 private herbarium of J. L. Edwards, (NY) herbarium of the 

 New York Botanical Garden, and (Ph) herbarium of the Acad- 

 emy of Natural Sciences of Philadelphia. Collectors most fre- 

 quently mentioned are indicated as C, R. T. Clausen ; E, J. L. 

 Edwards ; and M, K. K. Mackenzie. 



y IsoETES ExGELMANNi. A Br. Pfeiffer (1922) studied mate- 

 rial from only three counties in New Jersey : Bergen, Camden, and 

 Sussex. Small (1935) considered the species to be general in the 

 vicinity of New York (including New Jersey), but specimens 

 are not available to substantiate this belief. Actually the species 

 is unknown from the pine-barrens and coastal region. Indeed, 

 except for the specimens previously cited from Camden County, 

 it seems to be absent from the coastal plain in New Jersey. Plants 

 from Bennett, Cape May Co., are probably /. nielanopoda Gay and 

 Durieu. 



Bergen Co.: Oradell, M 742 (NY). Camden Co.: reported 

 by PfeiiTer (1922j. Middlesex Co.: Iselin, E & C 1721 (Claus). 

 Morris Co.: Denville, E (Claus, Edw); Pine Brook, E (Claus, 

 Edw) ; Splitrock Pond E (Claus, Corn, Edw). Passaic Co.: Oak 

 Ridge, M 3187 (NY) ; Pequannock, M 3803 (NY) ; Charlotte- 

 burg, E. G. Britton (NY) ; Greenwood Lake, R^. C. Mucnscher 

 and O. F. Curtis. Jr. 5379, 5380. and 5381 (Corn). Somerset Co.: 

 Rock :\Iill. E. T. Wherry (Ph). Sussex Co.: Montague, £ & C 

 163 (Claus, Edw) ; Lake Hopatcong and Wawayanda Lake, fide 

 J. L. Edwards. L^nion Co. : fide J. L Edwards. Warren Co. : above 

 Phillipsburg, M 5170 (NY). 



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