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Rusty Railings

Observed: 10th January 2010 By: sh8747
S159 Neighbourhood Nature - course complete
sh8747’s reputation in Fungi and Lichens
wall6
wall 6b
Description:
Identifications

Caution: Do NOT use iSpot to identify fungi to eat!

Some fungi are very poisonous so a mistaken ID could have serious consequences.

Species interactions

No interactions present.

Comments

gardener's picture

With these small, yellow

With these small, yellow crustose ones you need to check for the K+ (Caloplaca sp.) or K- (Candelariella sp.) reaction to be certain of species.
If you've established it is a Candelariella there are several that can be found in similar situations.

It seems quite fertile so Candelariella vitellina is a possibility - Frank Dobson in 'Lichens' states for C. reflexa that apothecia are 'very rare'.