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1 March 2009 Gowardia (Parmeliaceae)—a new alectorioid lichen genus with two species
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Abstract

In recent years, Alectoria in the Acharian sense has been shown to contain several discordant elements, now recognized as separate genera, including Bryoria, Nodobryoria, Pseudephebe and Sulcaria. Here we describe a new segregate genus Gowardia. At present, Gowardia contains two species: G. arctica sp. nov. and G. nigricans (Ach.) comb. nov. (syn. Alectoria nigricans). In addition to several morphological and chemical characters, our decision to recognize Gowardia as distinct from Alectoria is supported by phylogenetic analysis based on combined ITS and GAPDH data. Gowardia arctica is known from Arctic regions of Canada and Russia, while G. nigricans has a wider range. Alectoria vancouverensis is documented from Finland, which is the first report of the species outside the Pacific coast of North America.

Pekka Halonen, Leena Myllys, Saara Velmala, and Heini Hyvärinen "Gowardia (Parmeliaceae)—a new alectorioid lichen genus with two species," The Bryologist 112(1), 138-146, (1 March 2009). https://doi.org/10.1639/0007-2745-112.1.138
Received: 23 April 2007; Accepted: 1 February 2008; Published: 1 March 2009
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