Trypetheliaceae is currently one of the largest families of lichenized fungi, only distributed in the tropical area, with approximately 430 species known worldwide, allocated in 15 genera. Species of Trypethelium vary in thallus color (green, grayish, yellow or brownish) and chemistry (anthraquinones and lichexanthone are often present), also in combination, and in different parts of the thallus and/or fruiting bodies, but all have internally black and globose fruiting bodies that are usually fused, and long multiseptated thick-walled ascospores with oval lumina. Several taxa have been described in this genus; however, phylogenetic studies for the family (Nelsen et al. 2014; Lücking et al. 2016) showed that many described species belonged to other groups, such as the genus Astrothelium. The aim of the present work is to survey the genus Trypethelium from Brazil. The data were generated through a systematic revisions of bibliographies and databases such as Index Fungorum and Species Link. According to the analysis, eleven species were registered to Brazil, being more expressive T. eluteriae Spreng. with 243 records, highly assigned to Sergipe state, followed by T. subeluteriae Makhija & Patw. (67); T. platystomum Mont (30); T. ornatum Müll. Arg. (4); T. foveolatum Müll. Arg. (3); and T. krempelhuberi Makhija & Patw. (2). T. luteolucidum Aptroot, Mendonça & M. Cáceres; T. regnellii Malme, T. xanthostiolornatum Aptroot; T. aureornatum Aptroot; T. endoflavum Aptroot with only one record. From this work, it becomes evident that Trypethelium is very well represented in Brazil, reinforcing the need for greater attention to species identification, based on the assumption that it is a little studied genus and with high potential for a large number of species, especially for open areas such as Caatinga. This study is part of a bigger and ongoing project aiming to clarify the phylogenetic relationship based on morphological, molecular and chemical analysis.
Complete tool for submission, evaluation and publication of proceedings for scientific events.
