Potamogeton polygonifolius Pourret Conservation status: C First record: Relhan, 1805 Last record: DE Coombe, 1952 25 Gamlingay, RJ Bunch, 24.5.1832, det Dandy, LTR. Gamlingay, JS Henslow, 5.1838, det A Bennett 1894, CGE. P. oblongus. Hab. Gamlingay, Co. Cambridge. Coll. May 1838, J Ball, BSE. copied from BM Hb. 5.11.1886, A Fryer. Gamlingay, WW Newbould, 28.5.1846, Hb CC Babington, det Dandy & Taylor 1939; det RR Mill 1972, CGE. Newbould found this plant at Gamlingay on May 28 1846. I have a specimen from him. [CGE], I fear that it is now lost by the drainage. Bab.ann. I have a note of finding this plant at Gamlingay in May, 1852, but do not possess a specimen. It was probable that it was the true plant, but uncertain. Bab.ann. Gamlingay. 5.1852. Bab.MS.Fl.3:780, 780v. The Gamlingay plant was correct; there is a specimen in herb Watson at Kew. Bennett,1899,246. Still one patch near Gt Heath Wood, Gamlingay, CD Pigott, 1948. In two puddles, one just outside the Great Heath Wood, Gamlingay, 222.510, & the other in a shady place (very pig–ridden now) in the wood, approx. 224.512, 8.5.1949. DE Coombe, Card Index. Spring in wet meadow below Heath Wood, Gamlingay, SM Walters, 10.5.1949, det Dandy 1968; det Robert R Mill, 1972, CGE. Seen outside Gt Heath Wood, Gamlingay, (very dry now) but not inside, 26.7.1952. DE Coombe, Card Index. 45 Dernford Fen, A Malins Smith, 20.7.1905. [unconfirmed] 56 P. polygonifolius Burwell Fen, Relhan, 1805, Hb Dalton, HJW Cat.1282. P. polygonifolius Burwell Fen, Relhan, 1805, sp. in herb. Dalton at York. Bennett,1899,246. Bottisham Fen, 29.5.1829, J. Dalton! Bennett,1899,246. 57 Wicken Poor's Fen, in fruit, 1908, CEM ann.
