Yellow Lichen

A yellow lichen, probably Xanthoria parietina, on a tree.

Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2011-03-26.

Lichen

Two lichens on competing for space on the branch of a young tree.  The brown and white one is probably Lecanora chlarotera; I am not sure of the identity of the black and grey one [Note added 2011-03-31: it is possibly Lecidella elaeochroma.].  According to The Observer's Book of Lichens (Kenneth L. Alvin, 1977), L. chlarotera is similar to L. campestris but the former grows on trees while the latter grows on calcareous walls and rocks.

Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2011-03-26.

Lichen

Lichen encrusting a fallen twig.

Photo taken in Whiteknights Park, Reading University grounds, Reading, UK, on 2010-03-23.

Update on Sat 2011-03-26 by Tristram Brelstaff

Probably Xanthoria parietina.

A Lichen and a Moss

It has been a while since I posted any photos, so here a couple I took in the summer.  Above is a lichen, probably of the genus Cladonia.  The red structures are called astrocarps which contain asci which are small bags of spores.

And this is the sporophyte (fruiting structure) of a moss, probably of the genus Sphagnum.