Ginny B's picture

Cladonia spp

Observed: 18th August 2012 By: Ginny B
S159 Neighbourhood Nature - course complete
Ginny B’s reputation in Fungi and LichensGinny B’s reputation in Fungi and LichensGinny B’s reputation in Fungi and Lichens
Cladonia spp
P1030836_Cladonia sp crop sml

Growing on an east-facing sandy bank at the edge of a spruce plantation. I think these are two different Cladonia species. The thicker and whiter looking one with the red fruiting bodies on the right of the picture I believe to be Cladonia polydactyla.
I think the one in the foreground could perhaps be Cladonia furcata. It is fairly dry in this photo but when wet is a greener grey with a little brown towards the tips. With a hand lens it is possible to see that where it branches, mostly into two, there appears to be a hollow in the fork and that the extreme tips are very dark brown, possibly pycnidia, but too small for me to see.
Picture 2 shows it growing lower down the bank on the path edge – almost invisible in the moss and needles.


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Species interactions

No interactions present.


AlanS's picture

I also agree

that the red-fruited one is C. polydactyla. (Very grey, finely sorediate, forming small cups.)


Ginny B's picture

Thanks for the confirmation

Thanks for the confirmation on both lichens, Alan. It is rather nice to get it right on occasion and I've been a bit stumped by a few very small lichens on rocks recently, so this has given my morale a bit of a boost!