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Issue: Vol. 756 No. 3: 15 May 2026
Type: Article
Published: 2026-05-15
DOI: 10.11646/phytotaxa.756.3.2
Page range: 229-239
Abstract views: 0
PDF downloaded: 0

A new subspecies of Geranium donianum (Geraniaceae) from Sikkim, India

Plant Diversity; Systematics and Herbarium Division; CSIR-National Botanical Research Institute; Lucknow; Uttar Pradesh; India
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MAIRAJ AHMAD

Plant Diversity, Systematics and Herbarium Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India

Research Scholar

Plant Diversity; Systematics and Herbarium Division; CSIR-National Botanical Research Institute; Lucknow; Uttar Pradesh; India; Academy of Scientific and Innovative Research (AcSIR); Ghaziabad; Uttar Pradesh; India
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IMTIYAZ AHMAD HURRAH

Plant Diversity, Systematics and Herbarium Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India 

Research Scholar

Plant Diversity; Systematics and Herbarium Division; CSIR-National Botanical Research Institute; Lucknow; Uttar Pradesh; India; Academy of Scientific and Innovative Research (AcSIR); Ghaziabad; Uttar Pradesh; India
Eudicots cranesbills morphology Geranium taxonomy

Abstract

A new subspecies, Geranium donianum subsp. glandulosum is described here from Thangu village, Mangan district of Sikkim, India. The new subspecies is readily distinguished from Geranium donianum by its monochasial inflorescence; dense glandular hairs ca. 2.5 mm long on stem, petiole, and peduncle; leaves deeply palmatipartite; petal nerves adaxially hairy, staminal filaments hairy up to the middle or above, and nectaries glabrous. A detailed description, photographs, microscopic photoplates, illustrations and distribution map are provided for the new subspecies.

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How to Cite

Ahmad, M., Hurrah, I.A. & Wagh, V.V. (2026) A new subspecies of Geranium donianum (Geraniaceae) from Sikkim, India. Phytotaxa 756 (3): 229–239. https://doi.org/10.11646/phytotaxa.756.3.2