<i>Pteris madhusoodananii</i> (Pteridaceae), a new fern species from India

Pteris madhusoodananii sp. nov. (Pteridaceae), from the Kolli hills of Eastern Ghats, India, is described. The new taxon is morphologically distinct, characterized by a unique lamina texture and coloration, specific pinna‐pinnule architecture and distinct spore micromorphology. We provide a comprehensive taxonomic treatment with gross morphology, scanning electron microscopy (SEM) images of spores and molecular phylogeny to establish its affinities. To further support the taxonomic status of P. madhusoodananii , a phenetic study using multivariate analysis of 20 quantitative variables, resulting in principal component analysis (PCA) biplot that demonstrates clear separation from allied species. Given its narrow endemicity and restricted area of occupancy (AOO), the species is preliminarily assessed as ‘Critically Endangered' (CR) according to the IUCN Red List Category. This discovery emphasizes the high conservation value of the Eastern Ghats and underscores the necessity for continued floristic exploration in this understudied region.

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Publication Details

Journal
Nordic Journal of Botany
Published
2026-07-30
DOI
https://doi.org/10.1002/njb.05099
Primary Topic
Fern and Epiphyte Biology
Type
article
Field-Weighted Citation Impact
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article

Pteris madhusoodananii (Pteridaceae), a new fern species from India

Alex Philip Alen, Lakshmanan Leeja, Damaris Zurell, Kalathil Sethumadhavan Abhilash et al.
Nordic Journal of Botany
Fern and Epiphyte Biology
article

Pteris madhusoodananii (Pteridaceae), a new fern species from India

Alex Philip Alen, Lakshmanan Leeja, Damaris Zurell, Kalathil Sethumadhavan Abhilash, Thekkekara Suresh Gayathri, Sreenivas V.K., Jose Sojan
article en

Abstract

Pteris madhusoodananii sp. nov. (Pteridaceae), from the Kolli hills of Eastern Ghats, India, is described. The new taxon is morphologically distinct, characterized by a unique lamina texture and coloration, specific pinna‐pinnule architecture and distinct spore micromorphology. We provide a comprehensive taxonomic treatment with gross morphology, scanning electron microscopy (SEM) images of spores and molecular phylogeny to establish its affinities. To further support the taxonomic status of P. madhusoodananii , a phenetic study using multivariate analysis of 20 quantitative variables, resulting in principal component analysis (PCA) biplot that demonstrates clear separation from allied species. Given its narrow endemicity and restricted area of occupancy (AOO), the species is preliminarily assessed as ‘Critically Endangered' (CR) according to the IUCN Red List Category. This discovery emphasizes the high conservation value of the Eastern Ghats and underscores the necessity for continued floristic exploration in this understudied region.

Nordic Journal of Botany
University of Calicut (IN), Sree Sankaracharya University of Sanskrit (IN)
Life in Land
Openalex Percentile: Top 5%
Fern and Epiphyte Biology
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