Cladonia pyxidata?

[LunarSea]

Hi, I'm new here and would be grateful for help with an ID. I studied lichens at Uni, many, many years ago but since then I'm afraid my ID interests went in other directions so I'm a bit rusty.

I took these shots on Sunday, near Macclesfield in Cheshire. I'm pretty sure it's Cladonia and am tempted to say pyxidata but one of my shots shows waxy brown protruberances which are throwing me somewhat. I do recall seeing something similar on a website but maybe not so large or well-developed.

Thankyou for your help

[LunarSea]

Sorry, I should have mentioned that it was growing on a drystone wall in an open sunny position.

I have since found out that the brown structures belong to the pelt lichen beneath.

[GERAULT]

Chemical tests are necessary to study Cladonia but in my opinion it is not Cladonia pyxidata (absence of peltate granules) we must stick to Cladonia chlorophaea group.

AG

[LunarSea]

Thanks for replying @GERAULT

[Neil Sanderson]

Agree with @GERAULT, Cladonia chlorophaea s. lat., just possibly Cladonia chlorophaea in the strict sense given the generally greenish colours, but not doable from photos.

The

waxy brown protuberances

, threw me for a bit, but are actually the apothecia of a Dogtooth Lichen, Peltigera species, growing beside the Cladonia.

Neil