The lichenicolous Opegrapha species (Roccellaceae, Ascomycota) with 3-septate ascospores on Pertusaria and Ochrolechia

Authors: ERTZ, DAMIEN¹; DIEDERICH, PAUL²; MIADLIKOWSKA, JOLANTA³

Source: Botanical Journal of the Linnean Society, Volume 144, Number 2, February 2004 , pp. 235-241(7)

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Abstract:

The Opegrapha species with 3-septate ascospores growing on Pertusaria and Ochrolechia are revised. Two species are recognized: Opegrapha anomea (of which O. pertusariae, O. quaternella, O. wetmorei and possibly Leciographa weissii are considered to be synonyms), and O. blakii Ertz & Diederich sp. nov. described from a sterile lichen with an Ochrolechia-like thallus, known from Ecuador and Venezuela. Opegrapha anomea and several related lichenicolous species with roundish or irregular, often multilocular ascomata are morphologically intermediate between Opegrapha and Plectocarpon, and might represent a distinct genus. © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society, 2004, 144, 235−241.

Keywords: Arthoniales; Opegraphoidea; Plectocarpon; taxonomy

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1095-8339.2003.00239.x

Affiliations: 1: National Botanic Garden of Belgium, Department of Bryophytes-Thallophytes, Domaine de Bouchout, B-1860 Meise, Belgium 2: Musée national d'histoire naturelle, 25 rue Munster, L-2160 Luxembourg, Luxembourg 3: Department of Biology, Duke University, Durham, NC 27708-0338, USA and Department of Plant Taxonomy and Nature Conservation, Gdansk University, Al. Legionow 9, 80-441 Gdansk, Poland

Publication date: 2004-02-01