Français English

Caloplaca aurantia  (Pers.) J. Steiner

Synonyms:

Family: TELOSCHISTACEAE

Habitat: Ubiquitous

Description

   Thallus placodioid, rosette shaped, 5-10 cm diam., composed of long, flat lobes, closely appressed, partially or entirely rounded (margins seem to have been ironed), 1-3 mm wide, ; lobe-ends rounded and flat, sligthly furrowed, bright yellow, yellow,-orange, cocklade-like with an outer pale cream ring and a central darker area cracked-areolate, in part brown-orange due to the presence of apothecia. Apothecia, confined to the central area, usually abundant and crowded, to 1-1.5 mm diam., discs flat to slightly convex, brown-orange, with a distinct thin orange-yellow thalline margin. Ascospores polarilocular, typically lemon-shaped, 10-13 x 8-10 µm. Photobiont : trebouxioide. Thallus and apothecia K + purple. On well-lit limestone or calcareous stone walls. See Caloplaca flavescens much more frequent on nutrient-rich habitats and notably on mortar of walls, thallus with tight, convex lobes without furrows. See also taxa of Caloplaca saxicola complex.*







Caloplaca aurantia Ile d'Aix 2
Joël QUERELLOU



Caloplaca aurantia Ardennes 2
Jacques HAINE



Caloplaca aurantia Ile d'Aix 1
Joël QUERELLOU



Caloplaca aurantia Caen 1
Alain GERAULT



Caloplaca aurantia Caen 2
Alain GERAULT



Caloplaca aurantia Pointe d'Armorique
Alain GERAULT



Caloplaca aurantia Ile d'Aix 3
Joël QUERELLOU



Caloplaca aurantia Serignan-du-Comtat 1
Jacques HAINE



Caloplaca aurantia Serignan-du-Comtat 2
Jacques HAINE



Caloplaca aurantia Coupe apothecie eau Serignan-du-Comtat 3
Jacques HAINE



Caloplaca aurantia Asques & paraphyses Serignan-du-Comtat 4
Jacques HAINE



Caloplaca aurantia Asque Eau Serignan-du-Comtat 5
Jacques HAINE



Caloplaca aurantia Asque Bleu Coton Serignan-du-Comtat 6
Jacques HAINE



Caloplaca aurantia Spores Eau Serignan-du-Comtat 8
Jacques HAINE



Caloplaca aurantia Spores Lugol & Bleu Coton Serignan-du-Comtat 8
Jacques HAINE



Return
Content : Alain Gérault - Website development : Sylvain Ard - Hosting : Online.net