| Ligustrum vulgare | Cultivated | | Benjamin Thompson Lowne jnr | 30/4/1944 17/5/1944 20/6/1944 8/6/1945 11/7/1945 | K |
| Lamium amplexicaule | GB, VC28 West Norfolk, Weeting | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 29/4/1944 | K |
| Teucrium scorodonia | | | Benjamin Thompson Lowne jnr | 27/4/1944 | K |
| Digitalis purpurea | Cultivated | | Benjamin Thompson Lowne jnr | 9/9/1943 7/10/1943 | K |
| Stellaria palustris | Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 25/4/1943 to 16/5/1943 | K |
| Stellaria palustris | Cultivated | | Benjamin Thompson Lowne jnr | 25/4/1943 16/5/1943 | K |
| Mentha suaveolens | GB, VC13 West Sussex, Racton GB, VC13 West Sussex, Worthing Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 25/8/1941 | K |
| Linaria purpurea | GB, VC28 West Norfolk, Thetford | Henry Dixon Hewitt | Benjamin Thompson Lowne jnr | 17/7/1941 | K |
| Ajuga chamaepitys | | | Benjamin Thompson Lowne jnr | 11/6/1940 | K |
| Ajuga chamaepitys | | | Benjamin Thompson Lowne jnr | 29/5/1940 | K |
| Ajuga chamaepitys | | | Benjamin Thompson Lowne jnr | 21/5/1940 | K |
| Veronica alpina | GB, VC92 South Aberdeenshire, Cairngorm Mountains | J Johnstone | Benjamin Thompson Lowne jnr | 2/8/1939 | K |
| Linaria vulgaris | GB, VC14 East Sussex, Bishopstone | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 30/7/1939 | K |
| Ajuga chamaepitys | GB, VC13 West Sussex, Worthing Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 28/7/1939 | K |
| Ajuga chamaepitys | | | Benjamin Thompson Lowne jnr | 11/7/1939 | K |
| Mentha spicata | GB, VC13 West Sussex, Henfield | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 30/8/1938 | K |
| Sibthorpia europaea | GB, VC14 East Sussex, Herstmonceux | Benjamin Thompson Lowne jnr | | 27/7/1938 | K |
| Campanula patula | GB Cultivated | Benjamin Thompson Lowne jnr | | 4/3/1938 5/5/1938 to 22/5/1938 | K |
| Stachys annua | GB, VC13 West Sussex, Worthing | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 31/10/1937 | K |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC13 West Sussex, South Stoke | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 23/9/1937 | K |
| Mentha spicata x suaveolens = M. x villosa | GB, VC13 West Sussex, North Stoke | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 23/9/1937 | K |
| Limosella aquatica | GB, Hampshire, New Forest Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 3/9/1937 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC14 East Sussex, Bexhill | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 22/8/1937 | K |
| Stachys alpina | GB, VC13 West Sussex, Worthing Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 11/7/1937 | K |
| Limosella aquatica | GB, Hampshire, New Forest Cultivated | | Benjamin Thompson Lowne jnr | 11/9/1936 | K |
| Torilis arvensis | GB, VC13 West Sussex, Sompting | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 6/9/1936 | K |
| Gnaphalium sylvaticum | GB, VC13 West Sussex, West Chiltington | Benjamin Thompson Lowne jnr | | 4/9/1936 | K |
| Stachys germanica | GB, VC13 West Sussex, Worthing Cultivated | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 3/8/1936 | K |
| Lamium maculatum | GB, VC13 West Sussex, Henfield | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 25/6/1936 | K |
| Veronica crista-galli | GB, VC13 West Sussex, Worthing | Benjamin Thompson Lowne jnr | | 6/1936 | SLBI |
| Viola lactea | GB, VC14 East Sussex, Chailey Common | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 17/5/1936 | K |
| Limosella aquatica | Cultivated | | Benjamin Thompson Lowne jnr | 1936 | K |
| Carthamus tinctorius | GB, Ambiguous locality (GB), Worthing | Benjamin Thompson Lowne jnr | | 8/1935 | SLBI |
| Euphorbia hyberna | GB, VC10 Isle of Wight, Cowes Cultivated | Benjamin Thompson Lowne jnr | | 8/1935 | SLBI |
| Spinacia oleracea | GB, Ambiguous locality (GB), Worthing | Benjamin Thompson Lowne jnr | | 8/1935 | SLBI |
| Lamium maculatum | GB, VC13 West Sussex, Henfield | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 5/6/1935 | K |
| Stellaria palustris | GB, VC13 West Sussex, Amberley Wild Brooks | Benjamin Thompson Lowne jnr | | 1/7/1934 | K |
| Ballota nigra | GB, VC18 South Essex, Dagenham | R S Vine | Benjamin Thompson Lowne jnr | 8/1933 | K |
| Plantago major subsp. major | GB, VC18 South Essex, Dagenham Dock | R S Vine | Benjamin Thompson Lowne jnr | 7/1933 | K |
| Plantago major subsp. major | GB, VC18 South Essex, Dagenham Dock Cultivated | R S Vine | Benjamin Thompson Lowne jnr | 6/1933 | K |