Irish lichens

Solenopsora candicans

Order:       Family: Catillariaceae

Species: Solenopsora candicans

Growth type placodioid
Photos: On limestone. The Burren, Co. Clare, Ireland

Rosette-forming white to whitish-grey thallus, thickly pruinose with a blue-black prothallus. Lobes are slightly convex, widening towards tips. Apothecia have black, usually pruinose discs, margins becoming excluded. Asci 8-spored, spores 1-septate, 10-18 x 3-4 Ám

On sunny, hard calcareous rocks and often found on limestone monuments. Chemical results: K-, C-, KC-, P+ orange, UV+ grey

Similar: Diploicia canescens is sorediate. K+ yellow, P-

Solenopsora candicans

Solenopsora candicans
Solenopsora candicans. April 2009

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