Journal
LICHENOLOGIST
Volume 39, Issue -, Pages 61-67Publisher
ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
DOI: 10.1017/S002428290700655X
Keywords
ascomycetes; classification; Lecanorales; lichens; new taxa; Peltigerates; phylogeny; systematics; taxonomy
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In this investigation we utilized parsimony and Bayesian analyses of mtSSU and nuLSU rDNA sequence datasets to show that the lichenized ascomycete genera Leptochidiunz and Polychidium (formerly classified in Placynthiaceae) form a well-supported monophyletic group with Massalongia (Peltigerales, Lecanoroniycetes, Asconiycota). This group is also supported by morphological characteristics (ascus type, ascoma ontogeny and anatomy), but does not have a formal name on any level. We describe it here as the family Massalongiaceae. Massalongiaceae is related to a group consisting of Peltigeraceae-Nephroinataceae, and Lobariaceae, but the detailed relationships within this group are not resolved with convincing support.
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