| * | abbreviations used on CNHS card index. |
| < | less than |
| > | more than |
| ab. | abundant |
| BP | Bridle path |
| BECR | Botanical Exchange Club Report |
| BRC | Biological Records Centre, Monks Wood |
| CAMBIENT | Cambridgeshire and Isle of Ely Naturalists' Trust |
| CCHSB | Cambridge County High School (Boys) |
| CCHSB notes | Cambridge County High School (Boys) note book 1905-6. |
| CCB | CC Babington |
| CFG | Cambridgeshire Flora Group |
| CHSB | Cambridge High School for Boys |
| CNHS | Cambridge Natural History Society Card Index of Flowering Plants and Ferns. (In the Herbarium, Dept. Plant Sciences (Botany School), Cambridge |
| CNT | Cambridgeshire Naturalists' Trust |
| CNT exc. | Cambridgeshire Naturalists' Trust's Excursion Reports published in Nature in Cambridgeshire |
| CP | colour print |
| CRO | Cambridge Record Office, Cambridge |
| CS | colour slide |
| Cttee | Devil's Ditch Committee |
| CTW | Clapham, Tutin and Warburg, Flora of the British Isles |
| CUB | Library, Dept. Plant Sciences (Botany School), Cambridge |
| CUBG | Cambridge University Botanic Garden (Entry Books) |
| CUL | Cambridge University Library |
| CUP | Cambridge University Press |
| CWT | Cambridgeshire Wildlife Trust (formerly Cambridgeshire and Isle of Ely Naturalists' Trust, then Cambridgeshire Naturalists' Trust) |
| exc. | excursion |
| FE | Flora Europaea vols 1-5. |
| f., fide | personal communication |
| LJ | L Jenyns |
| JD | J Downes |
| MS. | manuscript |
| NBG | The New Botanist's Guide, 1835 |
| NCC | Nature Conservancy Council, now English Nature |
| NCM | Institute of Terrestrial Ecology, (now Centre of Ecology and Hydrology), Monks Wood. |
| n.c. | no collector |
| n.d. | no date |
| nr | near |
| N D | nondum descripta |
| n.l. | no locality |
| Pop. map | Population map |
| [R] | Recorder database, NP Millar, Cambridge Flora Group. |
| RSV | roadside verge |
| SRO | Suffolk Record Office, Ipswich |
| TNNNS | Transactions Norfolk and Norwich Naturalists' Society |
| TSNS | Transactions Suffolk Naturalists' Society |
| U3A | Botany Group, University of the Third Age, Cambridge |
| US | United States National Museum, Washington |
| WFS | Wild Flower Society |
| WLPG | WLP Garnons |
| WS | W Skrimshire |
| WSRO | West Suffolk Record Office, Bury St Edmunds |