Corresponding author: Sahut Chantanaorrapint (
Academic editor: Yasen Mutafchiev
A new species,
Inuthai J, Chantanaorrapint S, Poopath M, Tetsana N, Kiewbang W, Suddee S (2021)
During a recent visit to Khao Luang Mountain, Khao Luang National Park, by staff of BKF herbarium, an interesting taxon of the genus
This study is based on material collected during July 2018 from Khao Luang National Park, Nakhon Si Thammarat province, southern Thailand. Specimens were preserved in alcohol (70% ethanol) and deposited in BKF herbarium. Morphological characters were studied using a stereo microscope Olympus SZX7 and the distinctive characters of the species were illustrated with the aid of an Olympus drawing tube. Measurements were taken from spirit material. The specimen details were compared in detail with original drawings and descriptions given in the protologues of
Similar to
Thailand. Nakhon Si Thammarat province, Khao Luang National Park, near summit of Khao Luang Mt.,
Small terrestrial herb with underground tubers.
Flowering and fruiting observed in July.
The new species was found growing amongst bryophytes (Fig.
The specific epithet ‘
We consider it likely that if a formal assessment were performed, this species would be categorized as Critically Endangered (
Type locality of
Together with the recent discovery of a new species and new records of orchids from peninsular Thailand, especially in the Nakorn Si Thammarat mountain range (e.g.
There are now three species of
1 | Lateral sepals and petals free at base; spurs inconspicuous, broad and poorly developed |
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– | Lateral sepals adnate laterally to the connate petals at base; spurs well-developed, conical, slightly oblique to divergent |
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2 | Flowers pink, dorsal sepal as long as the lateral sepals, acute at apex; central portion of labellum bearing a callus |
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– | Flowers purplish, dorsal sepal shorter than the lateral sepals, rounded at apex; central portion of labellum hairy without a callus |
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We would like to thank the staff of BKF, C. Hemrat and S. Jirakorn for their help in the field; and A. Schuiteman (K) for his useful comments relating to this new species. We would also like to thank anonymous reviewers for their valuable comments and suggestions to improve the manuscript. This work was supported by the Prince of Songkla University annual government expenditure under the Plant Genetic Conservation Project Year 2018 (no. SCI600107S) under the Royal initiative of Her Royal Highness Princess Maha Chakri Sirindhorn.