Schaereria fuscocinerea forme gris-bleu

      This form differs from the type by its grey-blue colorations, sometimes (but quite rarely) with purplish tones. It is characteristic of the top of very lighted and very exposed siliceous rocks of the aerohaline zone. Almost always, parasitic? or associated? with crustose lichens, in particular yellow rhizocarpons, growing on these rocks.

N.B. This grey-blue form seems to correspond, at least p.p., to Schaereria endocyanea (Stirt.) Hertel & Gotth. Schneid. today considered as a simple form of Schaereria fuscocinerea morph. fuscocinerea.