|Red Data Book category 1 (RDB 1) - Endangered
|Red Data Book category 2 (RDB 2) - Vulnerable
|Red Data Book category 3 (RDB 3) - Rare
|Red Data Book category I (RDB I) - Indeterminate
|Red Data Book category K (RDB K) - Insufficiently Known
|Extinct in Great Britain
|Extinct in Europe
|Fungal rot that does not destroy lignin, leaving a crumbly red-brown material.
|reed-fen & pools
|This assemblage type is mainly restricted to topogenous mires and fens.
|Reported condition (favourable or unfavourable) of the assemblage, with level of confidence determined by ISIS compliance
|The third level of the Pantheon hierarchy, showing resources (such as structural features and food sources) considered important for species to complete their life cycles.
|rich flower resource
|This is a resource-based assemblage type that is expressed across a large range of habitats.
|The assemblage type is found on soft, bare or sparsely vegetated exposed riverine sediments ranging from fine sand mixed with silt to coarse sand mixed with cobbles.
|Soft, bare or sparsely vegetated exposed riverine sediments ranging from fine sand mixed with silt to coarse sand mixed with cobbles.
|Exposed coarse-grained riverine sediments ranging from gravel to cobbles and small boulders.
|Associated with rocky ground under trees.
|A habitat defined as the solid mineral interface between the land and the sea. It includes rock pools, crevices, vertical cliffs and barnacles under tidal influence and is subject to severe weathering by the sea.
|roots & underground wood
|Associated with decaying roots and in the bases of decaying trunks or stumps, or with up-ended root plates.
|rot hole detritus
|Species associated with decaying organic matter within rot holes.
|Cavities within the heartwood, often created where lateral branches have died and broken off.
|Habitats along stretches of rivers, streams and stronger spring-fed seepages where water action removes or retards vegetation, scours sediment to reveal bedrock or boulders or deposits fresh shingle, sand or silt.