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New species of Arthoniales from NE Brazil

Published online by Cambridge University Press:  23 August 2013

Aline Anjos MENEZES ,
Edvaneide Leandro de LIMA ,
Amanda Barreto XAVIER-LEITE ,
Leonor Costa MAIA ,
André APTROOT  and
Marcela Eugenia da Silva CÁCERES
Aline Anjos MENEZES
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal de Sergipe, CEP: 49100-000, São Cristóvão, Sergipe, Brazil
Edvaneide Leandro de LIMA
Affiliation:
Departamento de Micologia, Universidade Federal de Pernambuco, CEP: 50670-901, Recife, Pernambuco, Brazil
Amanda Barreto XAVIER-LEITE
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal de Sergipe, CEP: 49100-000, São Cristóvão, Sergipe, Brazil
Leonor Costa MAIA
Affiliation:
Departamento de Micologia, Universidade Federal de Pernambuco, CEP: 50670-901, Recife, Pernambuco, Brazil
André APTROOT*
Affiliation:
ABL Herbarium, G.v.d.Veenstraat 107, NL-3762 XK Soest, The Netherlands. Email: [email protected]
Marcela Eugenia da Silva CÁCERES
Affiliation:
Departamento de Biociências, Universidade Federal de Sergipe, CEP: 49500-000, Itabaiana, Sergipe, Brazil
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Abstract

The new species Coniarthonia aurata E. L. Lima, M. Cáceres & Aptroot, Cresponea endosulphurea A. A. Menezes, M. Cáceres & Aptroot, Cryptothecia macrocephala E. L. Lima, M. Cáceres & Aptroot, and Synarthonia sarcographoides Aptroot, A. A. Menezes, E. L. Lima & M. Cáceres are described from Caatinga vegetation in NE Brazil. They were found in the Chapada do Araripe in the state of Ceará and/or the Vale do Catimbau National Park in Pernambuco. Coniarthonia aurata has weakly organized, semiglobose apothecia with golden crystals, and on first impression looks like the anamorph of a Tylophoron. Cresponea endosulphurea has a pigment of the group of xantholepinones in the thallus. It is the first time that a substance from this group is reported from the Arthoniales. Cryptothecia macrocephala has strongly macrocephalic ascospores and contains psoromic acid in the thallus. Synarthonia sarcographoides is only the third species in this rarely found genus. It is characterized within the genus by muriform, brown ascospores, but it is assigned with hesitation to the genus. It is locally quite common.

Keywords

CaatingaCearáConiarthoniaCresponeaCryptothecialichensPernambucoSynarthoniaxantholepinone
Type
Articles
Information
The Lichenologist , Volume 45 , Issue 5 , September 2013 , pp. 611 - 617
Copyright
Copyright © British Lichen Society 2013 

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