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Issue: Vol. 768 No. 4: 5 Aug. 2026
Type: Article
Published: 2026-08-05
DOI: 10.11646/phytotaxa.768.4.2
Page range: 219-231
Abstract views: 63
PDF downloaded: 1

Russula griseopurpurata, a novel taxon of Russula subsect. Cyanoxanthinae (Russulaceae) from India

Department of Botany; Gauhati University; Gopinath Bordoloi Nagar; Jalukbari; Guwahati; Assam 781014; India; Department of Botany; Moridhal College; Dhemaji; Assam 787057; India
Department of Botany; Gauhati University; Gopinath Bordoloi Nagar; Jalukbari; Guwahati; Assam 781014; India
Department of Botany; Gauhati University; Gopinath Bordoloi Nagar; Jalukbari; Guwahati; Assam 781014; India
Department of Botany; Gauhati University; Gopinath Bordoloi Nagar; Jalukbari; Guwahati; Assam 781014; India
ITS new species phylogeny Russulales taxonomy Fungi

Abstract

A new species of Russula subsect. Cyanoxanthinae within subg. Heterophyllidiae, growing under the Shorea robusta tree in West Bengal and Meghalaya, India, is described based on macro- and micromorphological characteristics and molecular phylogeny. The taxon is distinguished macroscopically by having a medium-sized pileus coloured greyish to purple that cracks at maturity; the presence of lamellae furcations near the stipe; and microscopically by fusiform to lanceolate hymenial cystidia on the sides of the lamellae with a long appendage, globose to subglobose basidiospores with subreticulate ornamentation, and habitat in association with the Shorea robusta plant. A comprehensive morphological description, phylogenetic tree, illustrations of microstructures, and photographs of the novel taxon are provided.

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How to Cite

Roy, N., Chattopadhyay, P., Dutta, A.K. & Tanti, B. (2026) Russula griseopurpurata, a novel taxon of Russula subsect. Cyanoxanthinae (Russulaceae) from India. Phytotaxa 768 (4): 219–231. https://doi.org/10.11646/phytotaxa.768.4.2