Herbarium specimen: Groenlandia densa
| Taxon: | Groenlandia densa (L.) Fourr. ("Opposite-leaved Pondweed") named by James Edgar Dandy 1937 |
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| Collected by: | Mr Alfred Fryer |
| Collection date: | 24/7/1892 |
| Locality: | Great Britain, VC29 Cambridgeshire, Peterborough,Whittlesey, TL2797 |
| Institution: | Manchester Museum (MANCH) |
| Accession number: | MANCH.346783 |
