In: Sydowia 78, (2025): 123-133; ISSN 0082-0598, DOI 10.12905/0380.sydowia78-2026-0123, Published online on August 28th, 2025

Crassisporus amazonicus, sp. nov., (Polyporales) and the report of the genus as new to Africa and South America

Virton Rodrigo Targino de Oliveira, Paulo Roberto de Assis Alves, Nelson Correia de Lima-Júnior, Tiara Sousa Cabral, Dheanny Karyne Braz Silva, Adriene Mayra da Silva Soares & Tatiana Baptista Gibertoni

1 Departamento de Micologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
2 Centro Acadêmico de Vitória, Universidade Federal de Pernambuco, Vitória de Santo Antão, Brazil
3 Departamento de Parasitologia, Universidade Federal do Amazonas, Manaus, Brazil
4 Coordenação de Botânica, Campus de Pesquisa Museu Paraense Emílio Goeldi, Belém, Pará, Brazil
5 Laboratório de Botânica e Micologia, Centro de Ciências Biológicas, Universidade Federal Rural da Amazônia, Tomé-Açu, Pará, Brazil
e-mail: virton.rodrigo@ufpe.br

Targino de Oliveira V.R., de Assis Alves P.R., Correia de Lima N.Jr., Cabral T.S., Braz Silva D.K., da Silva Soares A.M. & Gibertoni T.B. (2025) Crassisporus amazonicus, sp. nov., (Polyporales) and the report of the genus as new to Africa and South America. – Sydowia 78: 123–133.

Crassisporus is a recently described genus in the polyporoid core clade, currently comprising C. imbricatus, C. leucoporus, C. macroporus, C. microporus, C. minutus and C. molissimus, with distribution in Asia, North America and Oceania. Based on morphological and molecular analysis of the ITS, LSU and TEF1 regions of rDNA, material collected in Brazil was placed in Crassisporus, representing C. amazonicus, a new species, and C. byrsinus, a newly proposed combination. In addition, the genus is reported for the first time from Africa and South America, and a table with the characteristics of the species of Crassisporus is presented.

Keywords: Amazonian, Coriolopsis byrsina, Polyporaceae, taxonomy. – 1 new species.