Alisma gramineum Lejeune Conservation Status: CR First record: RP Libbey & EL Swan,1972 Last record: JR Palmer,1976 see Libbey & Swan, Nat. in Cambs. 16:39-41;42. 48 South bank of the Forty Foot or Vermuyden's Drain, Welches Dam, nr Manea, 468.859, RP Libbey, 9.1972, CGE. Drain between Byall fen & Langwood fen, South bank, extending some 50 yds from the Eastern end. RP Libbey,18.9.1972, (BSBI Exc.) CGE. In deep water, Welches Dam, 21.9.1972, leg. RP Libbey, Hb JE Lousley, RNG. a few spikes, RE Randall, 25.8.1975, oral comm. S side of drain, (where the track turned south again with the drain on my right) c.469.859, 6.1976, JR Palmer in litt. 1977. Waterway somewhat eutrophied–none found in c.100 paces at S end of drain, 468.858, AC Leslie & DR Donald, 18.8.1978.
