Banca de DEFESA: JEFFERSON DOS SANTOS GOIS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JEFFERSON DOS SANTOS GOIS
DATE: 27/08/2021
TIME: 14:00
LOCAL: Google Meet
TITLE:

Review of the species of the genus Cyathus Haller (Nidulariaceae, Basidiomycota) from Brazil

KEY WORDS:

Bird’s nest fungi, Biological collections, Neotropics, Systematics, Taxonomy

PAGES: 152
BIG AREA: Ciências Biológicas
AREA: Botânica
SUBÁREA: Taxonomia Vegetal
SPECIALTY: Taxonomia de Criptógamos
SUMMARY:

Nidulariaceae are small size fungi that have a cosmopolitan distribution, occurring on various types of substrates. Among its members, the genus Cyathus Haller is the most representative, with about 84 published species. The genus is characterized by a fruitbody vase or cone-shaped, besides having internal structures that resemble small eggs inside a bird’s nest. Due to this feature, these organisms are popularly known as “bird’s nest fungi”. In Brazil, there are records of distribution of these organisms in all biomes, but with major concentration in the Amazon and Atlantic rainforest. Most of the studies involving Cyathus are focused in publish new species, formulating a large database that has accumulated over the years. In addition, lack of standardization of morphological characteristics has resulted in numerous misidentifications, and after analyses performed with type specimens, it was observed that there were significant differences between these and the Brazilian samples. Thus, this work aimed to perform an extensive taxonomic revision of Cyathus, reevaluating previously published material for the genus, to identify them correctly. For this, loans from Brazilian fungi collections were made, and surveys were performed in areas of Atlantic Forest in Rio Grande do Norte state. A total of 145 samples from institutional collections were analyzed from materials of several biomes, with exception of the Pantanal, totalizing 31 species occurring in Brazil. All species were listed and discussed in this review. In addition, updated descriptions, photo plates, distribution maps and a dichotomous key for all taxa occurring for Brazil are presented. The distribution of Cyathus was extended to 12 new unexplored areas and two samples were considered as potential taxonomic novelties for the genus. The results obtained in this review allowed the elucidation of existing taxonomic problems and provided an updated database for further works with the genus.

BANKING MEMBERS:
Presidente - 1452763 - IURI GOULART BASEIA
Externa à Instituição - JULIETH DE OLIVEIRA SOUSA - UFRN
Externo à Instituição - RENATO JUCIANO FERREIRA