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A newly named crust fungus turns up in Chinese forests

Fungal Diversity

The thin, leathery fungal crusts you might overlook on a fallen log in a forest are part of a huge, poorly cataloged group that quietly breaks down wood and recycles nutrients back into the soil.

Researchers found a fungus growing in Yunnan Province, China, that didn't match any known species, so they gave it a name: Vararia subtropica. It forms a tough, crust-like layer on wood, with a cream to buff colored surface and tiny curved spores, and DNA testing confirmed it's a close cousin of another Vararia species found nearby. Discoveries like this fill in gaps in the fungal family tree, showing there's still a lot of hidden diversity in forests we think we already know well.

Key Findings

1

New species Vararia subtropica described from Yunnan Province, SW China, based on morphology and DNA sequencing

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Distinguished by cream to buff hymenial surface and cylindrical to allantoid basidiospores measuring 7.1–11.3 x 2.7–5.2 µm

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Phylogenetic analysis (ITS and nLSU sequences, Maximum Likelihood and Bayesian methods) places it as sister species to Vararia daweishanensis

chevron_right Technical Summary

Scientists discovered a new species of fungus in the mountain forests of Yunnan Province, China, adding a previously unknown branch to the fungal tree of life and helping researchers understand how forest-decay fungi are related to one another.

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Abstract Preview

Original paper

Vararia subtropica sp. nov. (Peniophoraceae, Russulales), a coriaceous fungus from Yunnan Province, SW China

A new species, Vararia subtropica, from Yunnan Province, SW China, is described and illustrated based on morphological characters and phylogenetic analyses. Vararia subtropica is characterized by t...

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Abstract copyright held by the original publisher.

hub This connects to 9 other discoveries — fungal-diversity, phylogenetics, biodiversity-discovery +1 more 5 related articles

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Topic
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Phylogenetics is the study of evolutionary relationships among organisms using DNA sequences, protein data, and physical traits to reconstruct their shared ancestry. In plant science, it provides a framework for understanding how major lineages diverged over hundreds of millions of years, revealing

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