Plants
Botanical Society of the British Isles (BSBI) Eden Project
Plantlife
Postcode Plant Database Woodland Trust
Ferns
Fern World WW (British Pteridological Society)
Lichens
British Lichen Society
Mosses & Liverworts
British Bryological Society
Fungi
Association of British Fungus Groups
British Mycological Society Fungi to be with Hampshire Fungus Recording Group Mycology at Kew
Northern Ireland Fungus Group
Other Links
Birds & Ornithology
General Wildlife plus Geology & History
Insects & Spiders
Lepidoptera
Biodiversity & Natural History Organisations
Plants & Fungi Organisations