Cladonia coccifera grp. forma C+ jaune.
This form of the Cladonia coccifera group is distinguished by its chemical reactions: C+ yellow, K+/- yellow, KC +/- yellow-orange, P-. In the debris of a slate quarry.
N.B. Due to the arrangement of the apothecia and the microsquamules and granules of its scyphae, this chemoform seems close to Cladonia diversa.