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Inocybe hopeae sp. nov. and first record of Pseudosperma keralense (Inocybaceae) from Thailand

Bhavesh RAGHOONUNDON, Santhiti VADTHANARAT, Yuwei HU & Olivier RASPÉ

en European Journal of Taxonomy 870 (30) - Pages 30-45

Publié le 09 mai 2023

Inocybe hopeae sp. nov. and first record of Pseudosperma keralense (Inocybaceae) from Thailand

Based on genetic studies, supported further by morphological and ecological differences, we present a taxonomic novelty (Inocybe hopeae Raghoonundon & Raspé sp. nov.) and a new geographical record (Pseudosperma keralense) from forests of Northern Thailand. Inocybe hopeae is characterized by medium-sized basidiomes, brownish orange to brown pileus that is darker towards the margin, off-white to pale brown context, light brown to dark brown stipe with off-white basal mycelium and pale brown to grayish brown lamellae. A three-gene phylogeny (LSU, tef1, rpb2) coupled with macroscopic / microscopic descriptions and illustrations are provided confirming the species’ positions in their respective generic clades. Inocybe hopeae was sister to I. thailandica with strong support (BS = 100%, PP = 1.0). Our Thai collections of OR1629 had similar morphological characters and 100% identical sequences with the holotype of Pseudosperma keralense from India.


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