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Images of British Lichenicolous Fungi



Xanthoriicola physciae (Kalchbr.) D.Hawksw.


Ascomycota, incertae sedis (anamorph): dark conidiophores set in the host apothecial tissue, producing brown, globose, minutely echinulate conidia, 3.5 – 6 µm in diameter, parasitising Xanthoria species, principally Xanthoria parietina, and turning apothecia and surrounding dead thallus into a black, sooty mass. Widespread and locally common.

Refs: Hawksworth & Punithalingam (1973), Trans. British Mycological Society 61: 57-69 (line illustrations); Ellis (1976), 457 (line illus.); Hawksworth (1979), 267 (photomicrographs); Hawksworth (1983), 32.

FGBI: http://fungi.myspecies.info/all-fungi/xanthoriicola-physciae

 
Xanthoriicola physciae on Xanthoria parietina
Xanthoriicola physciae on Xanthoria parietina
On Xanthoria parietina, on dead stems of Shrubby Seablight (Suaeda vera) at top of saltmarsh, Holme next the Sea, Norfolk, July 2009
 
Xanthoriicola physciae on Xanthoria parietina
On Xanthoria parietina, on bark of Ash (Fraxinus excelsior), Shewalton Sand Pits, Ayrshire, May 2009


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Uploaded August 2010, last modified or updated April 2014