444 REPORT OF NEW JERSEY STATE AlUSEUM. 



NYMPH/EA L. 



Nymphaea advena Soland. Upright Spatter-dock. 



Nympluca advena Solander, in Ait. Hort. Kew. II. 226. 1789 [North 



America]. — Knieskern 6. — Britton 44. — Keller and Brown 144. 

 Nupliar advena Barton Fl. Phila. II. 10. 1818. 



Common along the lower Delaware River and adjacent ditches 

 and tidewater streams of West Jersey. 



This is the large-leaved erect Spatterdock so common along 

 the Delaware meadows, where it grows in association with 

 Sagittaria latifolia, Peltandra virginica, Zizania, etc. 



Fl. — Mid-May to mid-September. 



Middle District. — Riverside, Pensauken, Washington Park, Haddon- 

 field (S). 



Nymphsea variegata Engelm. Floating Spatter-dock.* 



NyHnphaa variegata Engelmann, Gray's Man. Ed. V., p. 57. 1867 [Probably 



Michigan]. — Keller and Brown 145. 

 Nymphcea microphylla Britton 44 (in part). 



Ponds and slow^ streams in the northern counties and the Pine 

 Barrens, apparently scarce in the Middle district. 



This is the Floating Spatterdock with smaller leaves and 

 rounder lobes, and weaker petioles. 



It seems to be the only species in the higher Alleghenies 

 of Pennsylvania and reappears as a characteristic plant 

 of the Ne^v Jersey Pine Barrens. Specimens from this 

 region that have been referred to N. ruhrodiscum are apparently 

 all referable to this species, and so far as I can see those referred 

 to N. niicrophyila Pers. fall into the same category. Specimens 

 from Pensauken Creek have thin submerged leaves and small 

 flowers, but they are connected with A^. variegata by a full series 

 of intermediates. Whatever true A^. fnicrophyUa may be I can 

 see no more difference in the extremes of these floating Spatter- 

 docks in southern New Jersey than exists in the \Miite Water 

 Lilies. 



Fl. — -Probablv similar to the last. 



Cf. G. S. Miller, Jr., Proc. Biol. Soc. Wash. 1902, pp. 11-13. 



