Two rare Peltigera species new to the Canadian Arctic, P. islandica and P. lyngei
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Research and Collections, Canadian Museum of Nature, PO Box 3443, Station D, Ottawa, Ontario, K1P 6P4, Canada
Department of Biology, Duke University, Durham, North Carolina, 27708-0338, USA
Online publication date: 2022-07-20
Publication date: 2022-07-20
Plant and Fungal Systematics 2022; 67(1): 17–23
Peltigera islandica and P. lyngei are rarely reported lichens. Previously, P. islandica was known from British Columbia, Estonia, and Iceland, and P. lyngei from Amchitka Island (Alaska), Gough Island (South Atlantic), Iceland, Siberia and Svalbard. Both species are reported here for the first time from the Canadian Arctic and from the second localities in North America. Peltigera lyngei is also reported for the first time from Canada. The identities of these species are confirmed morphologically, chemically, and with molecular data. Phylogenetic relationships are inferred using the ITS region. The widespread, but scattered, distribution of both species suggests that they may be underreported throughout their range.
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