Herbarium specimen: Potamogeton lucens x gramineus = P. x zizii
| Taxon: | Potamogeton lucens x gramineus = P. x zizii W.D.J.Koch ex Roth ("Pondweed, Long-leaved") named by George Taylor & James Edgar Dandy 1939 |
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| Other name: | Potamogeton lucens x gramineus = P. x zizii W.D.J.Koch ex Roth ("Pondweed, Long-leaved") |
| Collected by: | Henry Maurice Drummond-Hay (British Ornithologists' Union) |
| Collection date: | 2/9/1870 |
| Locality: | Great Britain, VC89 East Perthshire, Loch of Clunie, NO1144 |
| Institution: | Perth Museum and Art Gallery (PTH) |
| Accession number: | PTH.1999.420.8639 |
