Collema crispum


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

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.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map