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Distribution Database
> Pteris tremula R.Br. distribution map (BSBI)
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Grid reference lookup
Taxon list for a grid-square
Data validation
Taxon name lookup and validation
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Grid-reference validation
Date validation
Taxon distribution validator
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Where's the path
Ordnance Survey GB
Ordnance Survey Ireland
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Vice-county census catalogue
Herbarium@home
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BSBI Database (Leicester)
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