Molecular support for the recognition of theMycoblastus fucatusgroup as the new genusViolella(Tephromelataceae,Lecanorales)

Abstract

The crustose lichen genus Mycoblastus in the Northern Hemisphere includes eight recognized species sharing large, simple ascospores produced 1-2 per ascus in strongly pigmented biatorine apothecia. The monophyly of Mycoblastus and the relationship of its various species to Tephromelataceae have never been studied in detail. Data from ITS rDNA and the genes coding for translation elongation factor 1-α and DNA replication licensing factor mini-chromosome maintenance complex 7 support the distinctness of Mycoblastus s. str. from the core of the Tephromelataceae, but recover M. fucatus and an undescribed Asian species as strongly supported within the latter group. We propose accommodating these two species in a new genus, Violella, which is characterized by its brownish inner ascospore walls, Fucatus-violet hymenial pigment granules and secondary chemistry, and discuss the position of Violella relative to Calvitimela and Tephromela. We describe the new species Violella wangii T. Sprib. & Goffinet to accommodate a new species with roccellic acid from Bhutan, China, India and the Russian Far East.

Palicella, a new genus of lichenized fungi and its phylogenetic position withinLecanoraceae

“…In order to improve this study, future work should be based on a broader taxon sampling to clarify the relationships between these genera, as well as Adelolecia, Frutidella, Haematomma, Miriquidica, Ramboldia and the Tephromelataceae (Spribille et al 2011). Likewise, the correlation between Palicella and lecideoid species groups within Lecanora, such as L. fuscescens (Sommerf.)…”

Three new lichen species from Nicaragua, with keys to the known species of Eugeniella and Malmidea

“…Since the introduction of the genus, many additional species have been newly described or transferred to Malmidea (Kalb et al 2011, 2012; Spribille et al . 2011; Cáceres et al 2012, 2013 b ; Kalb et al 2012; Schumm & Aptroot 2012; Weerakoon & Aptroot 2013, 2014).…”

New records and a key to the species ofMalmidea(lichenized Ascomycota) from India

“…() to accommodate the Lecidea piperis ‐ and Lecanora granifera groups into their corresponding phylogenetic position. At present, the family Malmideaceae includes five genera, and the genus Malmidea comprises actually 55 species (Kalb, ; Spribille et al ., ; Kalb et al ., ; Schumm and Aptroot, ; Cáceres et al ., , ; Weerakoon and Aptroot, , ; Singh and Pinokiyo, ; Breuss and Lücking, ; Weerakoon et al ., ; Cáceres et al ., ). Breuss and Lücking () keyed out all known species of Malmidea in the world.…”

“…Sinha et al ., and M. psychotrioides (Kalb & Lücking) Kalb et al . (Spribille et al ., ; Singh and Pinokiyo, ; Sinha et al ., ; Gupta and Sinha, ; Sinha and Gupta, ). During the examinations of the specimens earlier identified as Lecidea granifera deposited in the herbarium LWG and fresh collections from Goa, the authors came across with some interesting specimens which resulted in six new records for India.…”