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Updated: Jun 8, 2026

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Published on: February 4, 2022
Two new unusual Leucoagaricus species (Agaricaceae) from tropical China with blue-green staining reactions
Jun F Liang1, Zhu L Yang, Jianping Xu
1Key Laboratory of Biodiversity and Biogeography, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China.
Abstract:
Most species of the genus Leucoagaricus have been described from temperate regions in North America and Europe, but little is known about the genus from tropical areas. In this report we describe two new species of Leucoagaricus, namely La. flavovirens and La. atroazureus, from tropical China. The two species are characterized by turning blue-green or dark blue where bruised and by unique phylogenetic placement. Two new combinations, namely La. viriditinctus and La. caerulescens, are proposed. A collection examined and cited under the name of La. viridiflavus by Kumar & Manimohan (2009b), who designated the neotype of the species, (Petch) TKA Kumar & Manimohan, was found to differ from La. flavovirens based on morphology and ITS sequence comparison. [corrected] A monophyletic group of four bluing species from Old World tropics is recovered but with poor measures of branch
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