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FLORA OF NAM KADING NATIONAL PROTECTED AREA VI: DIDYMOCARPUS MIDDLETONII (GESNERIACEAE), A NEW SPECIES FROM LIMESTONE

Published online by Cambridge University Press:  12 November 2018

K. Souvannakhoummane
Affiliation:
The Agro-Biodiversity Initiative, National Agriculture and Forestry Research Institute, Nongviengkham, PO Box 7170, Vientiane, Laos. E-mail: [email protected]
P. Souladeth
Affiliation:
Forest Management Department, Faculty of Forest Science, National University of Laos, Dongdok Campus, PO Box 7322, Vientiane, Laos.
S. Tagane
Affiliation:
Center for Asian Conservation Ecology, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan. Kagoshima University Museum, Kagoshima University, 1-21-30 Korimoto, Kagoshima 890-0065, Japan.
C.-J. Yang
Affiliation:
Institute of Ecology and Evolutionary Biology, National Taiwan University, No. 1 Section 4, Roosevelt Road, Taipei 106, Taiwan.
T. Yahara
Affiliation:
Center for Asian Conservation Ecology, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan.
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Abstract

Didymocarpus middletonii Souvann., Soulad. & Tagane, a new species of Gesneriaceae from Nam Kading National Protected Area, is described and illustrated. The new species is morphologically similar to Didymocarpus brevicalyx, D. formosus and D. puhoatensis but distinguished from the three by its fewer-flowered inflorescence, longer pedicel, and urceolate and multicellular eglandular hairy calyx. Based on the latest IUCN criteria, Didymocarpus middletonii is proposed to be Critically Endangered (CR). Our record of Didymocarpus represents a new genus record for the flora of Laos.

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Articles
Copyright
Copyright © Trustees of the Royal Botanic Garden Edinburgh (2018) 

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