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Morphological and phylogenetic analyses reveal two new species of Rhodoveronaea (Rhamphoriaceae, Rhamphoriales) from China

Summary

Scientists discovered two new fungal species living in freshwater habitats in China. These fungi, named Rhodoveronaea aquisubtropica and R. guizhouensis, were found in decaying wood in the Chishui River. By comparing their DNA and physical characteristics with known species, researchers confirmed they were previously unknown to science. These discoveries add to our understanding of fungal diversity in freshwater ecosystems.

Background

Freshwater fungi play a crucial role in decomposition of organic matter and nutrient cycling within freshwater ecosystems. Rhodoveronaea was established in 2007 with R. varioseptata as the type species and currently comprises eight accepted species found in both freshwater and terrestrial habitats.

Objective

To identify and describe two novel species of Rhodoveronaea obtained from decaying wood in Chishui City, Guizhou Province, China. The study aims to establish taxonomic placement through phylogenetic analyses and morphological comparisons while enriching knowledge of subtropical freshwater fungi diversity.

Results

Two novel species, Rhodoveronaea aquisubtropica and R. guizhouensis, were identified and formally described. Phylogenetic analysis showed R. aquisubtropica grouped with R. aquatica while R. guizhouensis was sister to R. lignicola. These represent the first records of Rhodoveronaea in the Chishui River Basin.

Conclusion

Multi-gene phylogenetic analyses and morphological comparisons support the recognition of two new Rhodoveronaea species from freshwater habitats in China. The study highlights the importance of molecular data for accurate species delimitation and demonstrates the potential for discovering novel fungal taxa in riverine ecosystems.
  • Published in:MycoKeys,
  • Study Type:Taxonomic Description Study,
  • Source: 10.3897/mycokeys.123.167930
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