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Revision of the corticolous Mazosia species, with a key to Mazosia species with 3-septate ascospores

Published online by Cambridge University Press:  09 July 2014

André APTROOT ,
Aline Anjos MENEZES ,
Amanda Barreto XAVIER-LEITE ,
Viviane Monique dos SANTOS ,
Marilia Muryel Estevam ALVES  and
Marcela Eugenia da Silva CÁCERES
André APTROOT
Affiliation:
ABL Herbarium, G.v.d.Veenstraat 107, NL-3762 XK Soest, The Netherlands. Email: andreaptroot@gmail.com
Aline Anjos MENEZES
Affiliation:
Programa de Pós-Graduação em Ecologia e Conservação, Universidade Federal de Sergipe, CEP: 49100-000, São Cristóvão, Sergipe, 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
Viviane Monique dos SANTOS
Affiliation:
Departamento de Biociências, Universidade Federal de Sergipe, CEP: 49500-000, Itabaiana, Sergipe, Brazil
Marilia Muryel Estevam ALVES
Affiliation:
Laboratório de Botânica, Universidade Regional do Cariri, Crato, Ceará, Brazil
Marcela Eugenia da Silva CÁCERES
Affiliation:
Departamento de Biociências, Universidade Federal de Sergipe, CEP: 49500-000, Itabaiana, Sergipe, Brazil
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Abstract

A revision of corticolous Mazosia specimens showed that four species are present, all differing from the foliicolous taxa in the genus. One of them is widely distributed in the tropics and the others are, as far as is known, neotropical. Three species are co-occurring in NE Brazil. They can be distinguished as follows: M. leptosticta (Nyl.) Sparrius has longer ascospores (22–35×4–7 µm) than the other species, M. endonigra A. A. Menezes, M. Cáceres & Aptroot sp. nov. has sessile apothecia on a smooth thallus and occasionally also sessile pycnidia, M. carnea (Eckfeldt) Aptroot & M. Cáceres comb. nov. has immersed apothecia and a smooth thallus, and M. viridescens (Fée) Aptroot & M. Cáceres comb. nov. has distinct verrucae on the thallus. Descriptions are given and an identification key is presented to all Mazosia species with 3-septate ascospores, which includes all corticolous species known so far.

Keywords

BrazilCearálichensPiauiRoccellaceaeSergipe
Type
Articles
Information
The Lichenologist , Volume 46 , Issue 4 , July 2014 , pp. 563 - 572
Copyright
Copyright © British Lichen Society 2014 

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References

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