sp8937's picture

Yellow Lichen on Wall

Observed: 22nd January 2012 By: sp8937
S159 Neighbourhood Nature - current student
9. Caloplaca microthallina

Yellow lichen found on stone wall, made up of lots of small "dots"


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.


JoC's picture

Yellow crustose lichen

Caloplaca microthallina is a maritime species growing on sheltered coastal rocks. Your given location doesn't look very coastal, so you could consider some other Caloplaca or a Candelariella. Look at the crustose species in Jenny's lichens Jenny's.   http://www.irishlichens.ie/index.html
And check the descriptions in Alan's site, http://www.lichens.lastdragon.org/
However, without close examination, and some chemical tests, this may have to remain a 'yellow crustose lichen'.