Herbarium specimen: Potamogeton perfoliatus
| Taxon: | Potamogeton perfoliatus L. ("Perfoliate Pondweed") named by Nicholas F Stewart 26/9/1986 |
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| Collection date: | 30/8/1882 |
| Locality: | Great Britain, VC89 East Perthshire, Marlee Loch, NO1444 |
| Institution: | Perth Museum and Art Gallery (PTH) |
| Accession number: | PTH.1999.420.8831 |
