| Scrophularia nodosa | IE, VCH33 Fermanagh, Castle Archdale | Robert Desmond Meikle | | 17/7/1953 | K |
| Teucrium scorodonia | GB, VC88 Mid Perthshire, Lawers | Robert Desmond Meikle | | 20/7/1953 | K |
| Mentha spicata x longifolia = M. x villosonervata | GB, VC16 West Kent, Seal Cultivated | Robert Desmond Meikle Sydney Gerald Harrison | | 31/7/1953 | K |
| Mentha villosa var. brevifolia | GB, VC16 West Kent, Seal Cultivated | Robert Desmond Meikle Sydney Gerald Harrison | | 31/7/1953 | K |
| Mentha pulegium | GB, VC16 West Kent, Seal Cultivated | Robert Desmond Meikle Sydney Gerald Harrison | | 31/7/1953 | K |
| Mentha piperita var. piperita | IE, VCH38 Co. Down, Portaferry | Robert Desmond Meikle | | 22/8/1953 | K |
| Mentha aquatica | IE, VCH38 Co. Down, Portaferry | Robert Desmond Meikle | | 22/8/1953 | K |
| Mentha suaveolens | IE, VCH38 Co. Down, Portaferry | Robert Desmond Meikle | | 22/8/1953 | K |
| Festuca arundinacea | IE, VCH33 Fermanagh, Enniskillen | Robert Desmond Meikle | | 11/7/1954 | K |
| Carex lasiocarpa | IE, VCH33 Fermanagh, Belleek | Robert Desmond Meikle | | 12/7/1954 | E |
| Callitriche intermedia | IE, VCH33 Fermanagh, Ross Lough | Robert Desmond Meikle | | 13/7/1954 | K |
| Mentha arvensis | IE, VCH33 Fermanagh, Lough Erne | Robert Desmond Meikle | | 15/7/1954 | K |
| Primula vulgaris x veris = P. x polyantha | IE, VCH33 Fermanagh, Drumcose | Robert Desmond Meikle | | 26/5/1955 | K |
| Callitriche platycarpa | IE, VCH33 Fermanagh, Inishrook | Robert Desmond Meikle | | 31/8/1955 | K |
| Mentha piperita var. piperita | IE, VCH33 Fermanagh, Lisnaskea | Robert Desmond Meikle | | 31/8/1955 | K |
| Mentha spicata | IE, VCH33 Fermanagh, Lisnaskea | Robert Desmond Meikle | | 31/8/1955 | K |
| Habenaria albida | IE, VCH29 Co. Leitrim, Kinlough | Robert Desmond Meikle | | 31/5/1956 | K |
| Digitalis purpurea | GB, VC17 Surrey, Farley | Robert Desmond Meikle | | 1/7/1956 | K |
| Digitalis purpurea | GB, VC17 Surrey, Farley Green | Robert Desmond Meikle | | 1/7/1956 | K |
| Callitriche intermedia | IE, VCH33 Fermanagh, Kesh | Robert Desmond Meikle | | 9/7/1956 | K |
| Galeopsis tetrahit | IE, VCH33 Fermanagh, Carrick Lough | Robert Desmond Meikle | | 10/7/1956 | K |
| Callitriche intermedia | IE, VCH33 Fermanagh | Robert Desmond Meikle | | 11/7/1956 | K |
| Callitriche intermedia | IE, VCH33 Fermanagh, Lisnaskea | Robert Desmond Meikle | | 13/7/1956 | K |
| Callitriche obtusangula | IE, VCH33 Fermanagh, Lough Inver | Robert Desmond Meikle | | 13/7/1956 | K |
| Origanum vulgare | IE, VCH33 Fermanagh, Kinglass | Robert Desmond Meikle | | 7/1957 | K |
| Mentha aquatica | IE, VCH33 Fermanagh | Robert Desmond Meikle | | 13/7/1957 | K |
| Mentha aquatica | IE, VCH33 Fermanagh, Rossmore Point | Robert Desmond Meikle | | 13/7/1957 | K |
| Limosella aquatica | IE, VCH33 Fermanagh | Robert Desmond Meikle | | 19/7/1957 | K |
| Limosella aquatica | IE, VCH33 Fermanagh, Corraslough Point | Robert Desmond Meikle | | 19/7/1957 | K |
| Stellaria palustris | IE, VCH38 Co. Down | Robert Desmond Meikle | | 8/1957 | K |
| Stellaria palustris | IE, VCH38 Co. Down | Robert Desmond Meikle | | 8/1957 | K |
| Lamium purpureum var. hybridum | IE, VCH38 Co. Down | Robert Desmond Meikle | | 8/1957 | K |
| Lamium purpureum var. hybridum | IE, VCH38 Co. Down, Benderg Bay | Robert Desmond Meikle | | 8/1957 | K |
| Thymus praecox subsp. arcticus | IE, VCH38 Co. Down, Benderg Bay | Robert Desmond Meikle | | 8/1957 | K |
| Stachys arvensis | IE, VCH38 Co. Down, Benderg Bay | Robert Desmond Meikle | | 8/1957 | K |
| Stellaria palustris | IE, VCH38 Co. Down, Downpatrick | Robert Desmond Meikle | | 8/1957 | K |
| Veronica polita | IE, VCH38 Co. Down, Saint Johns Point | Robert Desmond Meikle | | 8/1957 | K |
| Callitriche | IE, VCH33,VCH34, Beleek | Robert Desmond Meikle | | 16/7/1959 | K |
| Melittis melissophyllum | GB, VC5 South Somerset, Timberscombe | Robert Desmond Meikle | | 4/6/1961 | K |
| Cuscuta epithymum | GB, VC1 West Cornwall, Constantine Bay | Robert Desmond Meikle | | 9/1961 | K |
| Mentha suaveolens | GB, VC16 West Kent, Seal Cultivated | Robert Desmond Meikle Sydney Gerald Harrison | | 31/7/1963 | K |
| Callitriche stagnalis | GB, VC70 Cumberland, Whitehaven (E of),Kirkland | Robert Desmond Meikle | | 27/9/1966 | K |
| Silene conica | GB, VC5 South Somerset, Minehead Warren | Robert Desmond Meikle | | 24/7/1967 | K |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC14 East Sussex, Haywards Heath | Clifford Charles Townsend Robert Desmond Meikle | | 10/7/1968 | K |
| Lamium purpureum var. incisum | GB, VC17 Surrey, Epsom | Robert Desmond Meikle | | 2/5/1973 | K |
| Lamium purpureum var. incisum | GB, VC17 Surrey, Epsom | Robert Desmond Meikle | | 2/5/1973 | K |
| Carex muricata subsp. lamprocarpa | GB, VC5 South Somerset, Wootton Courtenay | Robert Desmond Meikle | | 3/7/1987 | BM |