Caloplaca teicholyta Teloschistaceae
Caloplaca teicholyta

Growth type crustose, margins +/- placodioid
Chemical results: Thallus K-, C-. Apothecia K+ crimson

Found on calcareous stones and mortar, usually on buildings, walls and church monuments.
Host to the lichenicolous Diplotomma murorum, photograph below.

Thick or thin, whitish-grey thallus, margins +/- placodioid. Forms rounded patches, centre +/- sorediate and scurfy, lobe ends forming +/- complete zone round the edge. Rarely fertile, apothecia initially inate, orange-brown. Spores 14-18 x 8-10 um, type 1C.

Similar: C. albolutescens; lobed margins, Lecanora pruinosa; C+ orange.


Caloplaca teicholyta

Caloplaca teicholyta

Caloplaca teicholyta

Caloplaca teicholyta, Diplotomma murorum
Caloplaca teicholyta
Corfe Mullen and Kimmeridge, Dorset. January and March 2014

All images used are copyright. Please contact me if you find errors.