Just by way of a change from Cladonia its a Collema queries thread:
1. Collema fasciculare? On limestone. Or is it Collema tenax var. ceranoides?
2. In full sun on the top of a harbour wall - Collema fuscovirens?
3. Collema subnigrescens? On limestone roadside wall
4. Collema tenax?
4a on coastal wall, 4b on boulder at the edge of a turlough
a)
b)
5. Not a clue, unless its a scrappy bit of something similar to 3. On limestone roadside wall
6. Fungus of some sort? On limestone
