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Images of British Lichenicolous Fungi



Nesolechia oxyspora (Tul.) A. Massal.
 
(= Phacopsis oxyspora (Tul.) Triebel & Rambold)


Ascomycota, Lecanorales: small, red-brown, convex apothecia are formed on contorted and bleached, malformed thalli, most often of Parmelia species but recorded on a number of related foliose genera, from which the fungus itself is evidently a non-lichenised, parasitic derivative. Ascospores fusiform, >14µm in length. Distribution northern and western, evidently not rare in western Scotland.

Refs: Hawksworth (1983), 24; Peršoh & Kainz in Nash et al. (2004) 679 (as Phacopsis oxyspora).

Nesolechia_oxyspora on Parmelia omphalodes
Nesolechia_oxyspora on Parmelia omphalodes
Nesolechia_oxyspora on Parmelia omphalodes
Nesolechia_oxyspora on Parmelia omphalodes
Parasitising and taking over thallus of Parmelia omphalodes, on coastal boulder, Rispond, West Sutherland, August 2012. Material rather wet.


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Uploaded March 2013.