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Type: Article
Published: 2014-02-04
Page range: 291–296
Abstract views: 14
PDF downloaded: 1

Gynura tambuyukonensis (Asteraceae), an obligate ultramafic species endemic to Mount Tambuyukon (Kinabalu Park, Sabah, Malaysia)

Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD, 4072 Australia
Faculty of Science and Technology, Phranakhon Rajabhat University, 10220, Bangkok, Thailand.
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Ongkarn Vanijajiva

Faculty of Science and Technology, Phranakhon Rajabhat University
Gynura Senecioneae Asteraceae Mount Tambuyukon Malaysia

Abstract

A new endemic species of Gynura is described and illustrated. Gynura tambuyukonensis is found exclusively (‘obligate’) on ultramafic soils between bare peridotite bedrock at 2450–2550 m above sea level on Mount Tambuyukon (Kinabalu Park) in Sabah (Malaysia) on Borneo Island. On the basis of the morphological features, this new taxon appears to be related to G. sundaiaca F.G. Davies of the Lesser Sunda Islands and Timor. The diagnostic morphological characters are discussed and information about its habitat, ecology and distribution is provided.