| Hypericum perforatum | GB, VC17 Surrey, Westcott | Edward Benedict Bangerter | Edward Benedict Bangerter | 5/7/1936 | SLBI |
| Hypericum tetrapterum | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 9/9/1951 | SLBI |
| Impatiens biflora | GB, VC17 Surrey, Mortlake | Edward Benedict Bangerter | London Natural History Society | 20/9/1947 | SLBI |
+ | Impatiens glandulifera | GB, VC17 Surrey, Towpath between Kew and Richmond | Edward Benedict Bangerter | | 12/7/1947 | BM |
+ | Impatiens glandulifera | GB, VC17 Surrey, Towpath Kew to Richmond | Edward Benedict Bangerter | | 24/8/1937 | BM |
| Inula conyzae | GB, VC17 Surrey, Box Hill | Edward Benedict Bangerter | Edward Benedict Bangerter | 30/8/1937 | SLBI |
| Isolepis setacea | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 7/7/1950 | SLBI |
| Juncus bulbosus | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 11/7/1948 | SLBI |
| Knautia arvensis | GB, VC17 Surrey, White Downs | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/6/1937 | SLBI |
| Lactuca serriola | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 21/8/1938 | SLBI |
| Lamiastrum galeobdolon | GB, VC17 Surrey, Tandridge | Edward Benedict Bangerter | Edward Benedict Bangerter | 10/6/1939 | SLBI |
| Lamium album | GB, VC17 Surrey, Oxted | Edward Benedict Bangerter | Edward Benedict Bangerter | 23/4/1939 | SLBI |
| Lapsana communis | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 10/7/1949 | SLBI |
| Lapsana communis | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 7/8/1936 | SLBI |
| Lathraea squamaria | GB, VC17 Surrey, Barrow Green | Edward Benedict Bangerter | Edward Benedict Bangerter | 8/5/1938 | SLBI |
| Lathyrus linifolius | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 6/7/1948 12/6/1949 | SLBI |
| Lathyrus pratensis | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 18/8/1950 | SLBI |
| Lathyrus pratensis | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 9/7/1950 | SLBI |
| Lathyrus tuberosus | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 11/7/1937 4/11/1937 | SLBI |
| Lemna trisulca | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 22/4/1950 | SLBI |
| Lepidium draba | GB, VC21 Middlesex, Chiswick, Duke's Meadows | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/5/1939 | SLBI |
| Lepidium ruderale | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | | 20/6/1939 | SLBI |
| Lepidium ruderale | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 31/7/1937 | SLBI |
| Lepidium ruderale | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 21/8/1938 | SLBI |
| Leucanthemum vulgare | GB, VC17 Surrey, Morden Park | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/6/1937 | SLBI |
| Linaria vulgaris | GB, VC24 Buckinghamshire, Chenies | Edward Benedict Bangerter | Edward Benedict Bangerter | 8/8/1937 | SLBI |
| Linum catharticum | GB, VC17 Surrey, Westcott | Edward Benedict Bangerter | Edward Benedict Bangerter | 5/7/1936 | SLBI |
| Listera ovata | GB, VC17 Surrey, White Downs | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/6/1937 | SLBI |
| Lonicera periclymenum | GB, VC17 Surrey, Tandridge | Edward Benedict Bangerter | Edward Benedict Bangerter | 10/6/1939 | SLBI |
| Lotus corniculatus | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 18/8/1950 | SLBI |
| Lotus corniculatus | GB, VC17 Surrey, Box Hill | Edward Benedict Bangerter | London Natural History Society | 2/6/1949 | SLBI |
| Lotus corniculatus | GB, VC17 Surrey, Ham Common | Edward Benedict Bangerter | Edward Benedict Bangerter | 23/8/1938 | SLBI |
| Lotus pedunculatus | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | London Natural History Society | 29/6/1948 | SLBI |
| Luzula campestris | GB, VC17 Surrey, Ockham | Edward Benedict Bangerter | Edward Benedict Bangerter | 2/4/1936 | SLBI |
| Luzula forsteri | GB, VC17 Surrey, Tandridge | Edward Benedict Bangerter | Edward Benedict Bangerter | 23/4/1939 | SLBI |
| Lychnis flos-cuculi | GB, VC17 Surrey, Oxted | Edward Benedict Bangerter | Edward Benedict Bangerter | 10/6/1939 | SLBI |
| Lysimachia nummularia | GB, VC17 Surrey, Barrow Green | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/6/1937 | SLBI |
| Lysimachia vulgaris | GB, VC17 Surrey, Richmond | Edward Benedict Bangerter | Edward Benedict Bangerter | 4/8/1936 | SLBI |
| Lythrum salicaria | GB, VC21 Middlesex, Chiswick | Edward Benedict Bangerter | Edward Benedict Bangerter | 28/6/1939 | SLBI |
| Malus sylvestris | GB, VC17 Surrey, Bookham Common | Edward Benedict Bangerter | | 10/9/1950 | SLBI |