644 REPORT OF NEW JERSEY STATE MUSEUM. 



MENYANTHES L. 



Menyanthes trifoliata L. Buckbean. 



Menyanthes trifoliata Linnaeus, Sp. PL 145. 1753 [Europe].— Barton, V\. 

 Phila, 104 and app. 215. 1818. — Pursh, Fl. Am. Sept. I. 139. — Britten 173. 

 ^Keller and Brown 257.— Stone, Bartonia I. 20. 1909. 



Swamps and bogs at a number of localities in the northern 

 counties and at three isolated stations within our limits, one at 

 Repaupo, Gloucester Co., discovered by Mr. Benj. Heritage, May 

 13, 1893; one at Cold Spring, Cape May Co., discovered July 15, 

 1906, by Messrs. C. S. Williamson, S. S. Van Pelt and the writer, 

 and the last at West Cape May, discovered by Mr. O. H. Brown. 

 The last is the most southern known locality for the species in 

 America, with the exception of one station in the mountains of 

 West Virginia.* Barton mentions a station, long since destroyed, 

 in a bog half a mile southeast of Kaighn's Point, where it was 

 abundant. 



Fl. — Late April to late May. 



Middle District. — Kaighn's Pt. (Barton), Repaupo. 

 Cape May. — Cold Spring, W. Cape May. 



LIMNANTHEMUM S. G. Gmelin. 

 Limnanthemum lacunosum (Vent.). Floating Heart, f 



Villarsia lacunosum Ventenat, Choix des Plantes 9. 1803 [Carolina]. — 



Pursh, Fl. Am. Sept. I. 139. 1814. 

 Limnanthemum lacunosum Knieskern 25. — Britton 174. — Keller and Brown 



257- 



In ponds of the Pine Barrens, Coast strip and Middle district, 

 but much less frequent in the last. There is but one record in the 

 State north of our limits, namely at Princeton Junction. 



A colony of this plant, which I found in 1910 at Centerton, 

 was particularly attractive. Hundreds of the little heart-shaped 

 leaves were floating on the surface of a pond interspersed every- 

 where with the delicate little white starry flowers, appearing in 



* Cf. Sheldon, Rhodora 1910, p. 11. 



t The nomenclature of these plants seems to require investigation by an 

 expert. The generic name Nymphoides adopted in the new Gray's Manual 

 is simply referred to in synonymy by Ventenat (Choix des Plantes 9. 1803), 

 and his species name lacunosa is a new name for aquatica Walter proposed 

 because aquatica was meaningless in a genus of exclusively aquatic plants. 



