Collema crispum
Description
Small thallus of greenish brown to black overlapping lobes, slightly swollen when moist. Lobe margins may be ascending, wavy, entire or crenate, never swollen.
Identification difficulty
Habitat
On damp, calcareous substrates; walls, crumbling mortar, rocks.
When to see it
All year round.
UK Status
Most records seem to come from the southern half of Britain.
VC55 Status
Status in Leicestershire and Rutland not known.
David Nicholls
Dimminsdale
15 March 2014
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015