Research Paper

Two new species of Henckelia Spreng. (Gesneriaceae) from Arunachal Pradesh, India

Shivam Kishwan, Tejas U. Thackeray, Navendu V. Page

Published on: 22 April 2026

Page: 394 - 402

DOI: 10.6165/tai.2026.71.394

Abstract

Two new species of Henckelia (Gesneriaceae), namely Henckelia flaviflora and H. siyomensis are described here. Detailed color plates, notes on their distribution and habitat, provisional IUCN conservation assessment are provided, along with tabular differentiation from morphologically similar species. Both these species inhabit shaded habitats along streams flowing through moist evergreen forests and are presently known only from the Eastern Himalayan Region of Arunachal Pradesh, India. H. flaviflora is described from Kamle district, whereas H. siyomensis is described from Shi-Yomi district.

Keyword: Conservation, Eastern Himalaya, Flora, Henckelia flaviflora, Henckelia siyomensis, North East India, Taxonomy

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