| Potamogeton gramineus | GB, VC95 Moray, Loch an t'Sidhien | Mary McCallum Webster | | 25/8/1973 | E |
| Potamogeton gramineus | GB, VC96 East Inverness-shire, Loch Ceo Glais | Mary McCallum Webster | | 8/8/1976 | E |
| Potamogeton gramineus | GB, VC96 East Inverness-shire, Loch Caulan | Mary McCallum Webster | | 26/10/1975 | E |
| Potamogeton gramineus | GB, VC96 East Inverness-shire, Nairn | Mary McCallum Webster | | 2/9/1975 | E |
| Potamogeton gramineus | GB, VC96 East Inverness-shire, Loch Loy | Mary McCallum Webster | | 2/8/1973 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC96 East Inverness-shire, Loch Bunacharan | Mary McCallum Webster | | 26/10/1975 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC96 East Inverness-shire, Drummossie Muir | Mary McCallum Webster | | 26/10/1975 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC95 Moray, Duthil | Mary McCallum Webster | | 3/8/1973 | E |
| Potamogeton natans | GB, VC95 Moray, Loch an t'Sidhien | Mary McCallum Webster | | 20/8/1973 | E |
| Potamogeton natans | GB, VC95 Moray, Lossiemouth | Mary McCallum Webster | | 21/6/1956 | E |
| Potamogeton natans | GB, VC96 East Inverness-shire, Blacktown | Mary McCallum Webster | | 22/9/1975 | E |
| Potamogeton natans | GB, VC95 Moray, Rafford | Mary McCallum Webster | | 19/9/1972 | E |
| Potamogeton polygonifolius | GB, VC96 East Inverness-shire, Dalwhinnie | Mary McCallum Webster | | 20/7/1923 | E |
| Potamogeton polygonifolius | GB, VC96 East Inverness-shire, Dalballoch | Mary McCallum Webster | | 16/7/1973 | E |
| Potamogeton polygonifolius | GB, VC96 East Inverness-shire, Ardclach | Mary McCallum Webster | | 12/7/1973 | E |
| Potamogeton polygonifolius | GB, VC95 Moray, Duthil | Mary McCallum Webster | | 3/8/1973 | E |
| Potamogeton polygonifolius | GB, VC96 East Inverness-shire, Nairn | Mary McCallum Webster | | 7/12/1973 | E |
| Potamogeton polygonifolius | GB, VC94,VC95, Bridge of Brown | Mary McCallum Webster | | 9/7/1973 | E |
| Carex divulsa | GB, VC11 South Hampshire, Sombourne | Mary McCallum Webster | | 25/5/1957 | E |
| Carex spicata | GB, VC106 East Ross & Cromarty, Rosemarkie | Mary McCallum Webster | | 27/7/1961 | E |
| Carex spicata | GB, VC86 Stirlingshire, Grangemouth | Mary McCallum Webster | | 4/9/1982 | E |
| Chloris truncata | GB, VC37 Worcestershire, Charlton | Christina Mayne Dony Job Edward Lousley Mary McCallum Webster N Saunders | Christina Mayne Dony | 28/8/1959 | BIRM |
| Eriochloa crebra | GB, VC37 Worcestershire, Charlton | Christina Mayne Dony Job Edward Lousley Mary McCallum Webster N Saunders | Christina Mayne Dony | 28/8/1959 | BIRM |
| Schkuhria pinnata | GB, VC37 Worcestershire, Charlton | Christina Mayne Dony Job Edward Lousley Mary McCallum Webster N Saunders | Christina Mayne Dony | 28/8/1959 | BIRM |
| Carex vulpina | GB, VC13 West Sussex, Amberley Wild Brooks | Mary McCallum Webster | | 11/6/1961 | E |
| Mentha aquatica | IE, VCH13 Co. Carlow, Tullow | Mary McCallum Webster | | 6/9/1957 | K |
| Mentha aquatica x spicata = M. x piperita | IE, VCH13 Co. Carlow, Borris | Mary McCallum Webster | | 6/9/1957 | K |
| Mentha aquatica x spicata = M. x piperita | IE, VCH12 Co. Wexford, Rathnure | Mary McCallum Webster | | 4/9/1957 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC96 East Inverness-shire, Loch Loy | | Mary McCallum Webster | 26/8/1952 | K |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH13 Co. Carlow, Leighlinbridge | Mary McCallum Webster | | 7/9/1957 | K |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH13 Co. Carlow, Milford | Mary McCallum Webster | | 5/9/1957 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC96 East Inverness-shire, Moy Burn | | Mary McCallum Webster | 26/8/1962 | K |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH13 Co. Carlow, Milltown | Mary McCallum Webster | | 5/9/1957 | K |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH12 Co. Wexford, Rathnure | Mary McCallum Webster | | 4/9/1957 | K |
| Mentha spicata | GB, VC96 East Inverness-shire, Moy Burn | | Mary McCallum Webster | 26/8/1962 | K |
| Mentha spicata | GB, VC113 Channel Islands, Jersey, Saint Peters | Mary McCallum Webster | | 26/8/1957 | K |
| Mentha spicata | GB, VC95 Moray, Moy | Mary McCallum Webster | | 5/8/1957 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC113 Channel Islands, Jersey, Mourier Valley | Mary McCallum Webster | | 21/8/1957 | K |
| Mentha suaveolens | IE, VCH12 Co. Wexford, Wilton Castle | Mary McCallum Webster | | 5/8/1957 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC95 Moray, Orton | Mary McCallum Webster | | 24/8/1973 | CGE |