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All Journal Biodiversitas Journal of Biological Diversity
PIYAPORN SAENSOUK
Diversity of Family Zingiberaceae and Vascular Plant for Its Applications Research Unit, Department of Biology, Faculty of Science, Mahasarakham University. Kantarawichai District, Maha Sarakham, 44150, Thailand
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Two new species of Curcuma subgenus Ecomata (Zingiberaceae: Zingibereae), from Central and Southwestern Thailand PIYAPORN SAENSOUK; THAWATPHONG BOONMA; SARAYUT RAKARCHA; CHARAN MAKNOI; MATHEE WONGNAK; SURAPON SAENSOUK
Biodiversitas Journal of Biological Diversity Vol. 23 No. 9 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230925

Abstract

Abstract. Saensouk P, Boonma T, Rakarcha S, Maknoi C, Wongnak M, Saensouk S. 2022. Two new species of Curcuma subgenus Ecomata (Zingiberaceae: Zingibereae), from Central and Southwestern Thailand. Biodiversitas 23: 4578-4588. Two new species of Curcuma L. are described. The first species, Curcuma suphanensis P. Saensouk, Boonma, Rakarcha, Maknoi, Wongnak & S. Saensouk sp. nov. was found in Suphan Buri province, Central Thailand, and the second species namely C. rosea P. Saensouk, S. Saensouk & Boonma sp. nov. was found in Uthai Thani province, Southwestern Thailand. Both species fall into the subgenus Ecomata because of the lack of conspicuous coma bract, and the presence of epigynous glands. This brings the number of species in this subgenus worldwide to 37 species. Living specimens and spirit specimens of both new species were collected from their natural habitats, morphological attributes measured, and compared to all existing species. Neither species match any previously-described species, therefore, both of them are new species to science. The first was named Curcuma suphanensis based on its province of origin (Suphan Buri Province), and the second species was named Curcuma rosea, on account of its pinkish bracts. Morphological descriptions along with their illustrations, notes on their ecology, etymology, and distributions, are presented along with a revised key to species of Curcuma subgenus Ecomata worldwide to facilitate identification.
Curcuma nakhonphanomensis (Zingiberaceae), a new species from the lower Mekong River basin, northeastern Thailand PIYAPORN SAENSOUK; THAWATPHONG BOONMA; SURAPON SAENSOUK
Biodiversitas Journal of Biological Diversity Vol. 23 No. 11 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d231159

Abstract

Abstract. Saensouk P, Boonma T, Saensouk S. 2022. Curcuma nakhonphanomensis (Zingiberaceae), a new species from the lower Mekong River basin, northeastern Thailand. Biodiversitas 23: 6040-6048. Curcuma nakhonphanomensis Boonma, Saensouk & P. Saensouk sp. nov. (Zingiberaceae: Zingibereae) was distributed in Nakhon Phanom Province, northeastern Thailand. The morphological characteristic of this species makes it fall into Curcuma subgenus Ecomata, due to the presence of epigynous glands, lack of coma bracts and bracts fused only at the base, and production of open-form of flowers. This plant did not match any existing species after careful morphological examination and comparison of all allied species in the genus Curcuma, especially in subgenus Ecomata. Therefore, we described it here as a new species to science in the name of Curcuma nakhonphanomensis Boonma, Saensouk & P. Saensouk. The specific epithet is named according to the province's name of the type locality. The morphological characteristics description, illustrations, vernacular name, ecology, phenology, distribution, utilization, conservation status, and map of distribution are present. The comparison table of the new species and its allies species, including a revised key to 41 species of Curcuma subgenus Ecomata is provided.
Co-Authors CHARAN MAKNOI MATHEE WONGNAK SARAYUT RAKARCHA SURAPON SAENSOUK SURAPON SAENSOUK THAWATPHONG BOONMA Thawatphong Boonma