| Author | OPAL |
| Year | 6 |
| Title | The OPAL guide to epiphytic lichens in orchards in the East of England |
| Type | Leaflet |
| Illustrations | Line drawings and colour photographs |
| Review (by Malcolm Storey) | An introduction to lichens of orchards in eastern England. This part of England has the lowest rainfall combined with generally not the best air quality, so has low lichen diversity. |
| Examine |  with x8 or x10 hand lens |
