Rhagadodidymellopsis endocarpi gen. et sp. nov. and Arthopyrenia symbiotica ( Dothideomyceta ), two lichenicolous fungi growing on Endocarpon species

Plant and Fungal Systematics

article

Samantha Fernández-Brime¹  Ester Gaya²  Xavier Llimona³  Mats Wedin¹  Pere Navarro-Rosinés³ 

[1] Department of Botany;Jodrell Laboratory, Royal Botanic Gardens;Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals ,(BEECA), Secció de Botànica i Micologia, Institut de Recerca de la Biodiversitat ,(IRBio), Facultat de Biologia, Universitat de Barcelona

关键词: Australia;    new species;    lichenicolous;    Ascomycota;    Spain;    taxonomy;   

DOI  :  10.35535/pfsyst-2020-0012

来源: Walter de Gruyter GmbH

【 摘 要 】

The lichenicolous fungus Rhagadodidymellopsis endocarpi (Dothideomyceta) growing on the thallus of the terricolous lichen Endocarpon pusillum is described from Spain and Australia as new to science. The new genus and species is compared with other taxa from the genera Didymellopsis and Zwackhiomyces (Xanthopyreniaceae, Collemopsidiales, Dothideomyceta), in particular with D. perigena, a species also having hyaline didymospores and also growing on Endocarpon. Rhagadodidymellopsis endocarpi is characterized by its almost completely superficial stromatic ascomata with a coarse and irregular surface, and an ascomatal wall of very irregular thickness, and ascospores smaller than those of D. perigena. We also compare the new species with other Endocarpon parasites, including Arthopyrenia symbiotica. This is a misunderstood species, originally described as Verrucaria symbiotica, which we also discuss in detail in this study.

【 授权许可】

Unknown