Previous page Next page
 
lastdragon.org

Images of British Lichenicolous Fungi



Marchandiomyces corallinus (Roberge) Diederich & D. Hawksw.
 
(= Illosporium corallinum Roberge)


Basidiomycota, Ceratobasidiales: bright pink coralloid sclerotia (formerly believed to be sporodochia) on dead and dying areas of the host thallus. Widespread and often common on a number of different lichen hosts, especially Parmelia and Physcia species, frequently causing extensive die-back of Parmelia saxatilis on walls and boulders.

Refs: Hawksworth (1983), 31 (as I. corallinum).

Note that the superficially similar ascomycete, Illosporiopsis christiansenii, is also an aggressive parasite of lichens, including Physcia species, and may be passed over as M. corallinus. It forms paler pink sporodichia releasing a powder of somewhat spiralled ('helicoid') conidia.

 
Marchandiomyces corallinus on Parmelia sulcata
Parasitising and killing thallus of Parmelia sulcata, Lochwinnoch, Renfrewshire, October 2008
 
Marchandiomyces corallinus on Physcia aipolia
Marchandiomyces corallinus on Physcia aipolia
Marchandiomyces corallinus on Physcia aipolia
On Physcia aipolia, Fairlie Glen, Ayrshire (coll. Craig & Tracey Macdonald), October 2008.


Previous page   Next page



Index of Lichenicolous Fungi | Index of Lichens | Lichens HOME PAGE | Conditions of Use & e-mail contact | References | Site Home Page


© A.J. Silverside
Uploaded March 2009, last modified March 2013.