| Cuscuta epithymum | GB, VC15 East Kent, Dungeness | John Patrick Micklethwait Brenan Noel Yvri Sandwith | | 20/9/1936 | K |
| Hypochaeris glabra | GB, VC15 East Kent, Dungeness | John Patrick Micklethwait Brenan | | 20/9/1936 | K |
| Linaria repens | GB, VC15 East Kent, Richborough Port | John Patrick Micklethwait Brenan | | 27/8/1936 | K |
| Glechoma hederacea | GB, VC15 East Kent, Sellindge | John Patrick Micklethwait Brenan | | 17/4/1936 | K |
| Callitriche truncata | GB, VC16 West Kent, Chipstead | John Patrick Micklethwait Brenan | | 10/7/1935 | K |
| Veronica persica var. kochiana | GB, VC16 West Kent, Halling | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 31/8/1939 | K |
| Lamium purpureum var. hybridum | GB, VC16 West Kent, Hildenborough | John Patrick Micklethwait Brenan | | 28/3/1936 | K |
| Glebionis segetum | GB, VC16 West Kent, Sevenoaks | John Patrick Micklethwait Brenan | | 19/7/1936 | K |
| Glebionis segetum | GB, VC16 West Kent, Sevenoaks | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 12/9/1937 | K |
| Callitriche intermedia subsp. hamulata | GB, VC16 West Kent, Snodland | John Patrick Micklethwait Brenan | | 28/5/1936 | K |
| Dactylis glomerata | GB, VC16 West Kent, Snodland | John Patrick Micklethwait Brenan | | 28/5/1936 | K |
| Glechoma hederacea | GB, VC16 West Kent, Tonbridge | John Patrick Micklethwait Brenan | | 5/4/1935 | K |
| Lamium album | GB, VC16 West Kent, Tonbridge | John Patrick Micklethwait Brenan | | 9/5/1936 | K |
| Phalaris arundinacea | GB, VC16 West Kent, Tonbridge | John Patrick Micklethwait Brenan | | 28/6/1936 | K |
| Melissa officinalis | GB, VC16 West Kent, Tonbridge | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 23/8/1939 | K |
| Glebionis segetum | GB, VC16 West Kent, Tunbridge | John Patrick Micklethwait Brenan | | 28/6/1936 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC14,VC15,VC16, Hawkhurst | John Patrick Micklethwait Brenan | | 3/8/1935 | K |
| Callitriche stagnalis | GB, VC17 Surrey, Godalming | John Patrick Micklethwait Brenan | | 25/5/1935 | K |
| Linaria supina | GB, VC17 Surrey, Kew Cultivated GB, VC2 East Cornwall, Par | John Patrick Micklethwait Brenan | | 1949 | K |
| Linaria supina | GB, VC17 Surrey, Kew Cultivated GB, VC2 East Cornwall, Par | John Patrick Micklethwait Brenan | | 1949 | K |
| Plantago arenaria | GB, VC17 Surrey, Kew | John Patrick Micklethwait Brenan | | 12/8/1955 | K |
| Veronica filiformis | GB, VC17 Surrey, Ripley | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 3/5/1949 | K |
| Fallopia dumetorum | GB, VC17 Surrey, Wimbledon Common | John Patrick Micklethwait Brenan Noel Yvri Sandwith | John Patrick Micklethwait Brenan | 10/1948 | K |
| Glechoma hederacea | GB, VC17 Surrey, Wisley | John Patrick Micklethwait Brenan Noel Yvri Sandwith | John Patrick Micklethwait Brenan | 6/4/1946 | K |
| Glebionis segetum | GB, VC18 South Essex, Dagenham | John Patrick Micklethwait Brenan | | 30/8/1936 | K |
| Bupleurum tenuissimum | GB, VC18 South Essex, Tilbury | John Patrick Micklethwait Brenan | | 2/9/1944 | K |
| Bupleurum tenuissimum | GB, VC18 South Essex, Tilbury | John Norton Mills John Patrick Micklethwait Brenan | | 2/9/1944 | K |
| Blysmus compressus | GB, VC20 Hertfordshire, Oughtonhead Common | John Patrick Micklethwait Brenan | | 26/6/1955 | K |
| Hypochaeris glabra | GB, VC22 Berkshire, Cothill | John Patrick Micklethwait Brenan | | 5/8/1944 | K |
| Hypochaeris glabra | GB, VC22 Berkshire, Cothill | Alan Philip Dalby Jones John Patrick Micklethwait Brenan | | 5/8/1944 | K |
| Plantago lanceolata var. bakeri | GB, VC22 Berkshire, Cumnor | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 3/6/1940 | K |
| Plantago lanceolata var. bakeri | GB, VC22 Berkshire, Cumnor | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 3/6/1940 | K |
| Hypochaeris glabra | GB, VC22 Berkshire, Cumnor | E W Jones John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 26/7/1948 | K |
| Stellaria palustris | GB, VC22 Berkshire, Wytham | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 30/5/1945 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Freeland | Alan Philip Dalby Jones John Patrick Micklethwait Brenan | | 3/9/1944 | K |
| Monotropa hypopitys | GB, VC23 Oxfordshire, Nettlebed | Herbert Kenneth Airy Shaw J S Hughes John Patrick Micklethwait Brenan | | 24/10/1937 | K |
| Leonurus cardiaca | GB, VC23 Oxfordshire, Oxford | John Patrick Micklethwait Brenan | John Patrick Micklethwait Brenan | 21/6/1939 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC23 Oxfordshire, Oxford,Port Meadow | John Patrick Micklethwait Brenan Noel Yvri Sandwith | | 30/8/1941 | K |
| Festuca arundinacea | GB, VC23 Oxfordshire, South Leigh | John Patrick Micklethwait Brenan Ronald Burn | John Patrick Micklethwait Brenan | 30/5/1943 | K |
| Dactylis glomerata | GB, VC28 West Norfolk, Appleton | Charles Edward Hubbard | John Patrick Micklethwait Brenan | 12/7/1935 | K |