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Bacidia rosellizans, a new lichen species from the taiga belt
Uppsala University, Music and Museums, Museum of Evolution.
2009 (English)In: The Lichenologist, ISSN 0024-2829, E-ISSN 1096-1135, Vol. 41, no Part 5, 481-487 p.Article in journal (Refereed) Published
Abstract [en]

Bacidia rosellizans S. Ekman is described as new to science. Morphologically, the newspecies is similar to the type species of the genus, B. rosella (Pers.) De Not., particularly in the pale pinkand pigment-deficient apothecia and in having the proper exciple and upper part of the hymeniuminspersed with minute crystals that consist at least partly of atranorin. Bacidia rosellizans, however,differs in having a thin whitish thallus, smaller apothecia and a thinner apothecial margin, a dense layerof crystals along the excipular rim, shorter and narrower ascospores with fewer septa, and septateconidia. Whereas B. rosella is a species occurring in the nemoral zone of Europe and possiblynorthernmost Africa and parts of Asia (but not North America), B. rosellizans is found mainly onPopulus and Salix in taiga. This species is currently known from Sweden, Russia, Canada and the USA.It was erroneously treated as Bacidia rosella in a monograph of North American corticolous species ofBacidia and Bacidina by Ekman (in Opera Botanica 127, 1996).

Place, publisher, year, edition, pages
2009. Vol. 41, no Part 5, 481-487 p.
Keyword [en]
taxonomy, Ramalinaceae, Bacidia rosella, Lichen anceps, Lecidea alabastrina, Bacidia sparsa
National Category
Biological Systematics
Research subject
Biology with specialization in Systematics
URN: urn:nbn:se:uu:diva-113395DOI: 10.1017/S0024282909990144ISI: 000269686500004OAI: oai:DiVA.org:uu-113395DiVA: diva2:290742
Available from: 2010-01-28 Created: 2010-01-28 Last updated: 2016-03-08

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