Caloplaca inconnexa (Nyl.) Zahlbr. var. inconnexa
Parasitic species. Thallus markedly crustose, incrusted within the host thallus and forming a distinct islet, composed of minute squamulose to granulose lobules, yellow, brown-yellow, turning necrotic dark brown to blackish towards the center. Apothecia usually numerous, sessile, disc flat, yellow-orange, orange, thalline exciple thick, persistent, yellow. Ascospores polarilocular, colourless, broadly ellipsoid, equatorial septum to the third of ascospore total length, 10-14 x 6-8 µm. Photobiont: chlorococcoid. Thallus and apothecia: K+ purple. Thermophilic species, strong Mediterranean trends, mainly in lowland well lit areas on Aspicilia thalli and notably on Aspicilia calcarea. See Caloplaca necator also parasitic of the same genus but restricted to apothecia and without distinct thallus; Caloplaca oasis is a parasite of Verrucaria (mainly Bagliettoa calciseda). N.B. This species is very similar to Candelariella vitellina which is K-.