Xanthoparmelia flindersiana (Elix & Armstrong) Elix & Johnston

in Elix, Johnston & Armstrong, Bull. Br. Mus. nat. Hist., Bot. 15, 3: 253 (1986).

Basionym: Parmelia flindersiana Elix & P.M. Armstr., Aust. J. Bot. 31, 5: 474 (1983).

 

Thallus: tightly adnate to adnate, 2-8 cm broad, dark yellowish green; lobes sublinear, 1-2 mm wide, continuous to subimbricate; upper surface continuous, emaculate, shiny, transversely cracked, moderately isidiate, the isidia globose, somewhat bloated, 0.10-0.15 mm in diameter, 0.1-0.2 mm high, the tips epicorticate, bursting open and becoming postulate, unbranched; medulla white; lower surface plane, brown, moderately rhizinate, the rhizines pale brown, simple, 0.2-0.3 mm long. Pycnidia lacking. Apothecia rare, adnate, ~ 1.0 mm in diameter; spores absent.

Photobiont: Trebouxia.

Chemistry: Norstictic acid, connorstictic acid, salazinic acid (trace), hypostictic acid (trace), hypoconstictic acid (trace), hyposalazinic acid (trace), usnic acid (det. J. Johnston).

Ecology: On silicious rock.