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| Henckelia multiflora N.V.Page, in Kishwan, Thackeray et Page, 2025. |
Abstract
Henckelia multiflora, a robust, caulescent herb, is described from the Upper Siang District of Arunachal Pradesh, India. The species is morphologically similar to Henckelia khasiana and H. oblongifolia but differs in having up to 30 (occasionally more) flowers per inflorescence, and a longer calyx with caudate-acuminate lobes. The species is presently known from only the Upper Siang District of Arunachal Pradesh.
Keywords: Caulescent, Endemic, Erect, Upper Siang District
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| Henckelia multiflora N.V.Page, sp. nov. A, Terminal leaves; B, habit; C, abaxial side of leaf. Photographs: Navendu Page. |
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| Henckelia multiflora N.V.Page, sp. nov. A and B, Inflorescence; C, close-up of inflorescence, with white arrows indicating the position of bracts; D, corolla split between upper and lower lip. Photographs: Navendu Page. |
Henckelia multiflora N.V.Page, sp. nov.
Henckelia multiflora is morphologically most similar to Henckelia khasiana Nampy & M.K.Akhil and Henckelia oblongifolia (Roxb.) D.J.Middleton & Mich.Möller in its caulescent habit and many-flowered cymose inflorescence. However, Henckelia multiflora differs from H. khasiana in having up to 30 (occasionally more) flowers per inflorescence (vs up to 12 in H. khasiana and up to 25 in H. oblongifolia), a longer calyx which is up to 4.2 cm long (vs 1.4–1.6 cm in H. khasiana and 0.6–2.2 cm in H. oblongifolia), caudate-acuminate calyx lobes (vs lanceolate in H. khasiana and triangular to triangular-acuminate in H. oblongifolia) and emarginate or shallowly bilobed stigma (vs chiritoid, distinctly forked in H. khasiana and truncate to obscurely emarginate in H. oblongifolia).
Etymology. The specific epithet refers to its many-flowered inflorescence, which is one of the diagnostic features of this species.
S. Kishwan, T. U. Thackeray, N. V. Page. 2025. Henckelia multiflora (Gesneriaceae), A New Species from the eastern Himalayan region of Arunachal Pradesh, India. Edinburgh Journal of Botany. 82; 1-11. DOI: doi.org/10.24823/ejb.2025.2095 [18 December 2025]
