| Habenaria viride | GB, VC11 South Hampshire, Upham | Victor Samuel Summerhayes | | 27/8/1957 | K |
| Mentha arvensis | GB, VC6 North Somerset, Glastonbury | Victor Samuel Summerhayes | | 13/8/1957 | K |
| Torilis arvensis | GB, VC6 North Somerset, Walton | Victor Samuel Summerhayes | | 12/7/1957 | K |
| Habenaria viride | GB, VC24 Buckinghamshire, Princes Risborough | Victor Samuel Summerhayes | | 27/6/1957 | K |
| Cephalanthera longifolia | GB, VC8 South Wiltshire, Winterbourne | Victor Samuel Summerhayes | | 19/5/1957 | K |
| Habenaria viride | GB, VC12 North Hampshire, Broughton Down | Victor Samuel Summerhayes | | 28/7/1956 | K |
| Herminium monorchis | GB, VC9 Dorset, Cerne Abbas | Victor Samuel Summerhayes | | 21/7/1956 | K |
| Torilis arvensis | GB, VC6 North Somerset, Somerton | Victor Samuel Summerhayes | | 19/7/1956 | K |
| Callitriche platycarpa | GB, VC6 North Somerset, Sharpham Park | Victor Samuel Summerhayes | | 18/7/1956 | K |
| Veronica catenata | GB, VC6 North Somerset, Sharpham Moor | Victor Samuel Summerhayes | | 18/7/1956 | K |
| Monotropa hypopitys | GB, VC27 East Norfolk, Holt | Victor Samuel Summerhayes | | 16/7/1956 | K |
| Veronica montana | GB, VC6 North Somerset, Pitney | Victor Samuel Summerhayes | | 6/6/1956 | K |
| Callitriche obtusangula | GB, VC6 North Somerset, Glastonbury | Victor Samuel Summerhayes | | 27/5/1956 | K |
| Ranunculus arvensis | GB, VC6 North Somerset, Somerton | Victor Samuel Summerhayes | | 27/5/1956 | K |
| Veronica montana | GB, Devon, Devon,Exe Valley | Victor Samuel Summerhayes | | 26/5/1956 | K |
| Oenanthe fistulosa | GB, VC6 North Somerset, King's Sedgemoor | Victor Samuel Summerhayes | | 25/5/1956 | K |
| Cephalanthera longifolia | GB, VC8 South Wiltshire, Winterbourne | Victor Samuel Summerhayes | | 23/5/1956 | K |
| Callitriche platycarpa | GB, VC47 Montgomeryshire, Waen-y-pant | Victor Samuel Summerhayes | | 5/7/1955 | K |
| Melissa officinalis | GB, VC47 Montgomeryshire, Abermule, Dolforwyn Castle | Victor Samuel Summerhayes | | 3/7/1955 | K |
| Thymus praecox subsp. arcticus | GB, VC47 Montgomeryshire, Abermule | Victor Samuel Summerhayes | | 3/7/1955 | K |
| Aceras anthropophorum | GB, VC11 South Hampshire, Stephens Castle Down | Victor Samuel Summerhayes | | 5/6/1955 | K |
| Aceras anthropophorum | GB, VC11 South Hampshire, Telegraph Hill, Winchester | Victor Samuel Summerhayes | | 5/6/1955 | K |
| Cephalanthera longifolia | GB, VC11 South Hampshire, West Meon | Victor Samuel Summerhayes | | 5/6/1955 | K |
| Orchis morio | GB, VC11 South Hampshire, Stephen's Castle Down | Victor Samuel Summerhayes | | 5/6/1955 | K |
| Veronica serpyllifolia | GB, VC15 East Kent, West Farleigh | Victor Samuel Summerhayes | | 29/5/1955 | K |
| Thymus chamaedrys | GB, VC35 Monmouthshire, Duffryn | Victor Samuel Summerhayes | | 5/9/1954 | K |
| Torilis arvensis | GB, VC24 Buckinghamshire, Stokenchurch | Victor Samuel Summerhayes | | 1/8/1954 | K |
| Habenaria viride | GB, VC6 North Somerset, Shapwick | Victor Samuel Summerhayes | | 3/6/1954 | K |
| Orchis morio | GB, VC6 North Somerset, Walton Heath | Victor Samuel Summerhayes | | 30/5/1954 | K |
| Monotropa hypopitys | GB, VC33 East Gloucestershire, Whitcombe Wood | Victor Samuel Summerhayes | | 28/7/1953 | K |
| Astragalus danicus | GB, VC71 Isle of Man, Scarlet Point | Victor Samuel Summerhayes | | 4/7/1953 | K |
| Cuscuta epithymum | GB, VC71 Isle of Man, Scarlet Point | Victor Samuel Summerhayes | | 4/7/1953 | K |
| Cymbalaria muralis | GB, VC71 Isle of Man, Port Erin | Victor Samuel Summerhayes | | 4/7/1953 | K |
| Stachys arvensis | GB, VC71 Isle of Man, Port Erin | Victor Samuel Summerhayes | | 29/6/1953 | K |
| Aceras anthropophorum | GB, VC23 Oxfordshire, Ipsden | Victor Samuel Summerhayes | | 7/6/1953 | K |
| Ophrys insectifera | GB, VC24 Buckinghamshire, Homefield Wood | Victor Samuel Summerhayes | | 7/6/1953 | K |
| Galeopsis angustifolia | GB, VC11 South Hampshire, Petersfield | Victor Samuel Summerhayes | | 25/7/1952 | K |
| Aceras anthropophorum | GB, VC15 East Kent, Queendown Warren | Victor Samuel Summerhayes | | 25/5/1952 | K |
| Veronica montana | GB, VC15 East Kent, Wormshill | Victor Samuel Summerhayes | | 25/5/1952 | K |
| Habenaria viride | GB, VC33 East Gloucestershire, Painswick | Victor Samuel Summerhayes | | 26/7/1951 | K |