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Issue: Vol. 768 No. 2: 30 Jul. 2026
Type: Article
Published: 2026-07-30
DOI: 10.11646/phytotaxa.768.2.4
Page range: 88-92
Abstract views: 58
PDF downloaded: 4

Cecidonia protoblasteniae (Lecideales), a new lichenicolous discomycete on Protoblastenia terricola from the Russian Arctic

Laboratory of Systematics and Geography of Fungi; Komarov Botanical Institute of the Russian Academy of Sciences; Professor Popov Street 2B; St. Petersburg; 197022; Russia
Fungi Lichens lichen parasites Siberia taxonomy

Abstract

A new lichenicolous discomycete, Cecidonia protoblasteniae, is described as new to science from the Russian Arctic. The new species is characterized by dark, superficial lecideine apothecia with a prominent margin; a cupular, dark brown exciple that is K−, N+ reddish brown; a greyish brown epihymenium; branched, anastomosing, coherent paraphyses that are apically hardly enlarged; 8-spored asci resembling the Porpidia-type; hyaline, broadly ellipsoid to subglobose, aseptate ascospores; and by its growing on Protoblastenia terricola.

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How to Cite

Zhurbenko, M.P. (2026) Cecidonia protoblasteniae (Lecideales), a new lichenicolous discomycete on Protoblastenia terricola from the Russian Arctic. Phytotaxa 768 (2): 88–92. https://doi.org/10.11646/phytotaxa.768.2.4