Contribution to the knowledge of Polypores (Agaricomycetes) in the Amazonian Forest, with 16 new records for the state of Pará, Brazil

Abstract

We present an inventory of polypore fungi (Basidiomycota; Hymenochaetales and Polyporales) with the aim of knowing the diversity of an area of 8 km2 of Brazilian Amazon rainforest, in the surroundings of HPP Sílvio Braga, in the west of Pará, where 91 species were collected (545 specimens), with 16 of these new records for the state of Pará, and 1 for America. These numbers tend to increase, given the projected occurrence of 118 species for the area. 87 species were considered occasional or rare, with only four considered frequent and none abundant. The richness observed in the study area was similar to other conservation units in the Amazon, for example, Caxiuanã National Forest (74 species). This observation, added to the potential increase in the number of species, the number of species with low representativeness (relative frequency) and the number of new records for the state, demonstrate the need to expand studies on polypore fungi in the region to learn about their biodiversity and the need for conservation of that area.

Taxonomic study of Hymenochaetaceae species (Agaricomycetes, Basidiomycota) in the municipalities of Tomé-Açu and Bujaru, Pará, Brazil

“…In this study, all species are registered for the first time in the municipalities of Bujaru and Tomé-Açu; four species are new records for the state of Pará, and two of them are new records for the Brazilian Amazonia. The Flora do Brasil database (2020) presented 43 species of Hymenochaetaceae registered for the Brazilian Amazonia and recent taxonomical studies, including this family, also expanded the knowledge of the distribution of the species (Soares et al 2014, Silva et al 2021, Couceiro et al 2022. However, the new records found demonstrated the importance of fungal inventories in different areas of the Amazonia, to understand the true diversity.…”

“…Fuscoporia callimorpha showed the largest number of specimens (3) and the only one collected in more than one study area, sítio Kenichi (2 occurrences) and sítio Corrêa (1 occurrence), but no host preference was found. Studies on Fuscoporia callimorpha demonstrated that species could be classified as rare or occasional (Xavier et al 2018, Couceiro et al 2022. The great representation of Fuscoporia species in forest areas is cited by Pires & Gugliotta (2016).…”

“…The occurrence of Hymenochaetaceae in the Brazilian Amazonia region has been reported in taxonomic reviews (Gomes-Silva & Gibertoni 2009ab, Júnior et al 2011, Soares et al 2014, Silva et al 2021, showing frequent new records and new taxa for science (Gomes-Silva et al 2009, 2012a, 2013, Alves-Silva et al 2020Silva et al 2021, Couceiro et al 2022, Lima et al 2022, Oliveira et al 2022. According to Flora do Brasil (2020), approximately 40 species distributed in 13 genera of Hymenochaetaceae are currently known to occur in the region.…”