Two new polyporoid species of Fomitopsidaceae (Polyporales, Basidiomycota) from India

  • Rituparna Saha Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata, West Bengal 700019, India
  • Arun Kumar Dutta Molecular & Applied Mycology Laboratory, Department of Botany, Gauhati University, Gopinath Bordoloi Nagar, Jalukbari, Guwahati, Assam 781014, India
  • Anirban Roy West Bengal Biodiversity Board, Prani Sampad Bhawan, 5th Floor, LB - 2, Sector - III, Salt Lake City, Kolkata, West Bengal 700106, India
  • Krishnendu Acharya Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata, West Bengal 700019, India
Keywords: Fomitopsidaceae, India, ITS nrDNA, Polyporales, taxonomy


Two new species of Fomitopsidaceae, Pseudofomitopsis fusca R.Saha, A.K.Dutta & K.Acharya sp. nov. and Fomitopsis benghalensis R.Saha, A.K.Dutta & K.Acharya sp. nov., are described from West Bengal, India, based on morphological and molecular phylogenetic analyses (nuclear ITS sequence). Pseudofomitopsis fusca sp. nov. possesses perennial, triquetrous to ungulate, sessile basidiocarps with a shiny, glabrous, azonate, dark brown upper surface, a yellowish grey pore surface with angular pores (3–5 per mm), a dimitic type of hyphal system with clamped generative hyphae, fusoid cystidioles; ellipsoid, cotton blue positive, and basidiospores 3–5 × 1.5–3.5 µm. Fomitopsis benghalensis sp. nov. is characterized by its annual, resupinate basidiocarp with pilose, bluish white to orange-grey, warty, woody upper surface, bluish-white pore surface, circular to angular pores (5–7 per mm), a trimitic type of hyphal system with clamped generative hyphae, fusoid cystidioles, and cylindrical to elongate basidiospores (5.5–8 × 2.5–3.5 µm). The new taxa are compared to closely related taxa. Photomicrographs of the basidiocarps, along with detailed morphological descriptions and a molecular sequence-based phylogenetic tree, are provided.


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How to Cite
Saha, R., Dutta, A. K., Roy, A., & Acharya, K. (2024). Two new polyporoid species of Fomitopsidaceae (Polyporales, Basidiomycota) from India. European Journal of Taxonomy, 935(1), 122-136.
Research article