| Author | Hyde, H.A., Wade, A.E. & Harrison, S.G. |
| Year | 1969 |
| Title | Welsh Ferns, Clubmosses, Quillworts and Horsetails |
| Type | Book/Report |
| How Complete | All the native British species known at the time, plus naturalised aliens and some hybrids |
| Source | 5th edition, 178pp, National Museum of Wales |
| Illustrations | Line drawings and half-tone photographs |
| Review (by Malcolm Storey) | Despite the title this book is useful for the whole of the British Isles. Indented key to genera followed by he species accounts with keys to species at the start of each genus. Most species and the major hybrids have full accounts, illustrated with one or more line drawings. The remaining species and hybrids have shorter entries. |
| Examine |  with x8 or x10 hand lens ( Compound Microscope is also useful) |
| Specimen Preparation | Spore or sporangial preps needed in some cases, esp. for hybrids. |
| Identification difficulty | Care needed. |
