Taxonomic revision of some taxa in Kaempferia subgenus Protanthium (Zingiberaceae) revealing a new species from Thailand and two new synonyms
Issued Date
2024-01-01
Resource Type
ISSN
00065196
Scopus ID
2-s2.0-85194370368
Journal Title
Blumea: Journal of Plant Taxonomy and Plant Geography
Volume
69
Issue
1
Start Page
16
End Page
26
Rights Holder(s)
SCOPUS
Bibliographic Citation
Blumea: Journal of Plant Taxonomy and Plant Geography Vol.69 No.1 (2024) , 16-26
Suggested Citation
Nopporncharoenkul N., Jenjittikul T. Taxonomic revision of some taxa in Kaempferia subgenus Protanthium (Zingiberaceae) revealing a new species from Thailand and two new synonyms. Blumea: Journal of Plant Taxonomy and Plant Geography Vol.69 No.1 (2024) , 16-26. 26. doi:10.3767/blumea.2024.69.01.03 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/101161
Title
Taxonomic revision of some taxa in Kaempferia subgenus Protanthium (Zingiberaceae) revealing a new species from Thailand and two new synonyms
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Author's Affiliation
Corresponding Author(s)
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Abstract
Kaempferia subglobosa (Zingiberaceae) is described and illustrated as a new species of Kaempferia subg. Protanthium from Tak Province, northern Thailand. It can easily be distinguished from all other species of subg. Protanthium by having branched storage roots with numerous, tiny, lateral and terminal subglobose to ovoid tubers. The diagnostic characters of this taxon are discussed and compared with those of the morphologically most similar species K. rotunda. Detailed photographs of plants and dissected flowers, and information on phenology, distribution and ecology, are provided. Interestingly, a red dwarf honeybee, Apis florea, is likely a pollinator. The IUCN conservation status of Vulnerable is assigned for K. subglobosa. In addition, the names K. uttaraditensis and K. kamthornii are synonymized with K. albiflora and K. takensis, respectively. As a result of this taxonomic revision, the Flora of Thailand currently harbours 14 species of the subgenus of which 9 strictly endemic. Two alternative updated identification keys for Kaempferia subg. Protanthium are also presented.
