Teloschistaceae Polycauliona candelaria s. lat (Xanthoria candelaria s. lat) Growth type foliose. Chemical results: K+ red Found on the top of nutrient-rich fence posts and gravestones, also on bark, walls, rocks and occasionally twigs. Aggregate includes Polycauliona candelaria, P. ucrainica, Xanthomendoza fulva, X. oregana, X. ulophyllodes Compact, ascending, small yellowish-orange lobes, rhizines usually absent. Marginal finely-granular soralia (blastidia) extends to under surface of lobes. Apothecia are occasional on lobe tips, margins contorted. Asci 8-spored, spores 11.5-14.5 x 4.5-6.5 µm. Micro photo below. Similar: Candelaria concolor is K-, X. polycarpa has wider spores

Microscope photograph

Polycauliona candelaria s.lat (Xanthoria candelarias.lat)
Studland and Broadstone, Dorset. April 2013 and February 2016