Cladonia rei Schaer.

    Primary thallus limited in size made of a few incised squamules. Secondary thallus corresponding to podetia, 1-4 cm tall, erected, slender, sometimes twisted, rarely branched at the top, farinose to granulose throughout, with soredia and sometimes small squamules from the base to the middle, pale dull green-brownish, sometimes ended by small spines around an atrophied cup (not a true scyphus). Photobiont : trebouxioide. C-, K-, KC-, Pd- or Pd+ yellow-orange, UV+/- white. Rare species variously interpreted by Eropean authors, occuring on the ground especially in the mountains.   

_ Very close to Cladonia ochrochlora that more often bears scyphi with extensions and is rusty  P+.

N.B. Presently it is considered that this species could be a chemotype of Cladonia subulata but recent biomolecular studies do not seem to support this hypothesis. 

_ See Cladonia rei ss. auct. am. which seems to be the reference for this northern and boreal species.