| Scrophularia auriculata | GB, VC84 West Lothian, Hopetoun House | Jackie Muscott | | 1990 | E |
| Carex vulpinoidea | GB, VC17 Surrey, Tadworth | Olga Margaret Stewart | | 20/9/1989 | E |
| Potamogeton gramineus | GB, VC98 Argyllshire, Strathclyde, Argyll, Strathlachlan | B H Thompson | | 11/9/1989 | E |
| Potamogeton gramineus | GB, VC98 Argyllshire, Strathclyde, Argyll, Strathlachlan | B H Thompson | | 11/9/1989 | E |
| Potamogeton gramineus | GB, VC98 Argyllshire, Loch na Cruaich | B H Thompson | | 6/8/1989 | E |
| Potamogeton lucens | GB, VC64 Mid-west Yorkshire, Malham Tarn | Christopher David Preston P P Abbott | Cambridge University | 23/7/1989 | E |
| Potamogeton gramineus | GB, VC98 Argyllshire, Kilchrenan | B H Thompson | | 23/7/1989 | E |
| Carex diandra | GB, VC112 Shetland, Mainland | Richard Charles Palmer | Walter Scott | 23/7/1989 | E |
| Carex maritima | GB, VC112 Shetland, Unst | Richard Charles Palmer | Walter Scott | 20/7/1989 | E |
| Carex diandra | GB, VC112 Shetland, Unst | Richard Charles Palmer | Walter Scott | 12/7/1989 | E |
| Potamogeton coloratus | GB, VC103 Mid Ebudes, Coll Island | Christopher David Preston Nicholas F Stewart | Cambridge University | 7/7/1989 | E |
| Potamogeton gramineus | GB, VC103 Mid Ebudes, Loch Ballyhaugh | Christopher David Preston Nicholas F Stewart | Cambridge University | 6/7/1989 | E |
| Carex appropinquata | GB, VC80 Roxburghshire, Alemoor Loch | Olga Margaret Stewart | | 2/7/1989 | E |
| Carex disticha | GB, VC80 Roxburghshire, Alemoor Loch | Dorothy Stewart | | 2/7/1989 | E |
| Taraxacum haworthianum | GB, VC104 North Ebudes, Fiskavaig | Catriona W Murray | | 16/6/1989 | E |
| Potamogeton lucens | IE, VCH8 Co. Limerick, Castleconnell | Olga Margaret Stewart | | 9/6/1989 | E |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | IE, VCH9 Co. Clare, Cahir River | Olga Margaret Stewart | | 5/6/1989 | E |
| Elodea callitrichoides | GB, VC13 West Sussex, Chichester | Olga Margaret Stewart | | 21/9/1988 | E |
| Potamogeton coloratus | GB, VC103 Mid Ebudes, Gallanach | Brian S. Brookes | | 20/9/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC73 Kirkcudbrightshire, Tarff Water | Olga Margaret Stewart | | 10/9/1988 | E |
| Elodea nuttallii | GB, VC99 Dunbartonshire, Dumbarton,Clydebank | Alan McGregor Stirling | | 9/1988 | E |
| Carex dioica | GB, VC83 Midlothian, Moorfoot Hills | Douglas Ronald McKean | | 6/8/1988 | E |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Christopher David Preston Nicholas F Stewart | Cambridge University | 28/7/1988 | E |
| Potamogeton natans | GB, VC96 East Inverness-shire, Nairn | Christopher David Preston | Cambridge University | 25/7/1988 | E |
| Potamogeton gramineus | GB, VC106 East Ross & Cromarty, Loch Ussie | Christopher David Preston | Cambridge University | 24/7/1988 | E |
| Potamogeton gramineus | GB, VC106 East Ross & Cromarty, Loch Ussie | Christopher David Preston | Cambridge University | 24/7/1988 | E |
| Potamogeton gramineus | GB, VC29 Cambridgeshire, Block Fen, Chatteris | B A Adams Christopher David Preston | Cambridge University | 12/7/1988 | E |
| Potamogeton polygonifolius | GB, VC73 Kirkcudbrightshire, Duimhumphrey | Nicholas F Stewart Olga Margaret Stewart | | 3/7/1988 | E |
| Potamogeton lucens | GB, VC98 Argyllshire, Loch Fiart | B H Thompson | | 1/7/1988 | E |
| Potamogeton polygonifolius | GB, VC101 Kintyre, Island of Danna | Christopher David Preston M G B Hughes Nicholas F Stewart | Cambridge University | 20/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Loch Barnluasgan | Christopher David Preston M G B Hughes Nicholas F Stewart | Cambridge University | 20/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Loch Coille-Bharr | Christopher David Preston M G B Hughes Nicholas F Stewart | Cambridge University | 20/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Aucha Lochy | Christopher David Preston Nicholas F Stewart | Cambridge University | 19/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Aucha Lochy | Christopher David Preston Nicholas F Stewart | Cambridge University | 19/6/1988 | E |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC101 Kintyre, Aucha Lochy | Christopher David Preston Nicholas F Stewart | Cambridge University | 19/6/1988 | E |
| Potamogeton polygonifolius | GB, VC101 Kintyre, Tangy Loch | Christopher David Preston Nicholas F Stewart | Cambridge University | 19/6/1988 | E |
| Potamogeton lucens | GB, VC98 Argyllshire, Loch Fiart | B H Thompson | | 17/5/1988 | E |
| Elodea nuttallii | GB, VC60 West Lancashire, Garstang Canal | Olga Margaret Stewart | | 15/9/1987 | E |
| Potamogeton coloratus x gramineus = P. x billupsii | GB, VC110 Outer Hebrides, Loch na Liana Mòire | Christopher David Preston Helen E Stace J H Bratton Nicholas F Stewart S D Webster | Cambridge University | 10/9/1987 | E |
| Potamogeton gramineus | GB, VC110 Outer Hebrides, An Lige Mor | Christopher David Preston Helen E Stace Nicholas F Stewart S Webster | Cambridge University | 8/9/1987 | E |