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22 October 2019 A new species of Lecanora (Ascomycota: Lecanoraceae) from mangrove in northeast Brazil identified using DNA barcoding and phenotypical characters
Janice Gomes Cavalcante, Lidiane Alves dos Santos, André Aptroot, Robert Lücking, Marcela Eugenia da Silva Cáceres
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Abstract

Molecular phylogenetic analyses revealed a high diversity of unrecognized species of Lecanora s.l. in Brazil, with many near-cryptic species that require a combined analysis of morphology, secondary metabolites and molecular sequences for accurate delimitation. In this study, a new species of Lecanora is described which is morphologically close to L. achroa and L. helva. The new species was collected in the Guadalupe environmental protection area, located in the municipality of Barra de Sirinhaém, a mangrove region in the state of Pernambuco in the Brazilian Northeast. Lecanora parachroa sp. nov. agrees with L. achroa in morphological and anatomical features but differs in secondary chemistry, lacking usnic acid and 2′-O-methylperlatolic acid. Molecular data using the ITS barcoding marker suggest that commonly identified species in this group, including L. helva and L. leprosa, are collective taxa, each including several lineages.

Copyright ©2019 by The American Bryological and Lichenological Society, Inc.
Janice Gomes Cavalcante, Lidiane Alves dos Santos, André Aptroot, Robert Lücking, and Marcela Eugenia da Silva Cáceres "A new species of Lecanora (Ascomycota: Lecanoraceae) from mangrove in northeast Brazil identified using DNA barcoding and phenotypical characters," The Bryologist 122(4), 553-558, (22 October 2019). https://doi.org/10.1639/0007-2745-122.4.553
Received: 1 July 2019; Accepted: 29 August 2019; Published: 22 October 2019
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KEYWORDS
Australia
Cuba
Lecanora achroella
Lecanora albellaria
Lecanora chlaroterodes
Lecanora subflavicans
Parmelia varia var. cinereocarnea
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