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BioImages: The Virtual Field-Guide (UK)
Rich, T.C.G., 1991
Crucifers of Great Britain and Ireland
After a brief introduction, the identification section starts with a detailed review of the characters used, including useful hints on counting ovules. This is followed by the Key to Groups, then the individual Group Keys to genera. All the keys are of the indented form.
Each genus entry begins with a discussion on identification and including hints on when the requisite features are likely to be developed. This is followed by the key to species.
The final Keys are described as synoptic, but they are really just a condensed form of indented key. They don't require ripe fruit, so are less reliable than the main keys.
A list of rare characters provides a short cut to identifying distinctive species.
The major portion of the book consists of detailed species accounts facing line-drawings of the plant, leaf/leaves, flower, fruit, seeds etc.
10km distribution maps are presented two to a page, but these are now superceded by the later BSBI Atlas.
| Publisher |
Botanical Society of the British Isles (BSBI) |
| Volume |
No 6 |
| Pages |
336 |
| ISBN |
0 901158 20 8 |
| Coverage |
All the British species known at the time, and aliens with more than 5 records beween 1950 and the time of writing. |
| Illustrations |
Line drawings facing the species descriptions, plus a few more interspersed in text and keys. |
| Identify |
With x8 or x10 hand lens (also useful to examine with x15 or x20 hand lens). |
| Specimen Prep. |
Fresh or pressed, but ideally with ripe fruits. |
| Difficulty |
Some quite difficult. Several genera of Brassicaceae are challenging and for these ripe fruits are a must. |
Malcolm Storey
Taxonomic Scope
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