Lecidea
Lecidea is a genus of crustose lichens with a carbon black ring or outer margin around the fruiting body disc, usually found growing on or in rock. Lichens that have such a black exciple are called lecideine, meaning "like Lecidea, even if they are not in this genus. Members of the genus are commonly called disk lichens or tile lichens.According to the Dictionary of the Fungi, the widespread genus contains an estimated 427 species.
- L. atrobrunnea
- L. Brodoana
- L. fuscoatra
- Lecidea hassei
- L. laboriosa
- L. plana
- L. tessellata
