Research Paper

Aeschynanthus luteoflorus (Gesneriaceae), a new species from Kalimantan, Indonesia

Zainudin, Abdul Rahim Idris, Yuda Rehata Yudistira

Published on: 24 May 2026

Page: 477 - 482

DOI: 10.6165/tai.2026.71.477

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    Abstract

    Aeschynanthus luteoflorus (Gesneriaceae) is here described as a new species from Kalimantan, Indonesia, adding to the diversity of Aeschynanthus in Borneo. The species is morphologically similar in its inflorescence to A. dasycalyx Hallier f. but distinguished by elliptic, sometimes oblong leaves, ovate-elliptic bracteoles, and a tubular-cupuliform calyx that is brown to bright greenish-yellow. It further differs in having a bright greenish-yellow and longer corolla. The new species is also distinct from A. flavidus Mendum & P. Woods by its elliptic, sometimes oblong leaves, tubular-cupuliform calyx, and markedly shorter corolla, which is approximately 1.5 times the calyx length. Notes on distribution, ecology, conservation status, and comparative illustrations are provided.

    Keyword: Aeschynanthus dasycalyx, Aeschynanthus flavidus, Borneo, Gesneriaceae, Lipstick flower, Xanthanthos

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