Nigel Cattlin / Crescent-cup liverwort (Lunularia cruciata), close up. Berkshire, England, UK. January.

Nigel Cattlin / Crescent-cup liverwort (Lunularia cruciata). Berkshire, England, UK. January.

Chris Mattison / Crescent-cup liverwort (Lunularia cruciata), Bargain Wood, Wye Valley, Monmouthshire, Wales, UK. November.

Simon Colmer / Crescent cup liverwort (Lunularia cruciata) Eridge Rocks SSSi, Sussex, UK

Philippe Clement / Crescent Cup Liverwort (Lunularia cruciata) Belgium