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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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Revision of the genus Cornukaempferia Mood & K. Larsen (Zingiberaceae), and a new species from 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/d231123

Abstract

Abstract. Saensouk P, Boonma T, Saensouk S. 2022. Revision of the genus Cornukaempferia Mood & K. Larsen (Zingiberaceae), and a new species from Thailand. Biodiversitas 23: 5718-5729. Cornukaempferia Mood & K. Larsen (Zingiberaceae) is revised. Seven species of Cornukaempferia have been recognized with their updated nomenclature including C. aurantiiflora Mood & K. Larsen, C. longipetiolata Mood & K. Larsen, C. larsenii P. Saensouk, C. chayanii Yupparach & Wongsuwan, C. kamolwaniae Picheans., Yupparach & Wongsuwan, C. argentifolia Boonma & Saensouk, and a new species, namely C. srisumoniae P. Saensouk, S. Saensouk & Boonma sp. nov. A new species is found during our exploration of the diversity of Zingiberaceae in Thailand. After comparison to all previously existing species in the genus, the morphological characteristics of a new species are the most similar to C. argentifolia, but different in certain morphological characteristics. Therefore, we claim it as a new species to science under the name C. srisumoniae P. Saensouk, Saensouk & Boonma sp. nov. This new species is described here along with its illustrations, photographs, ecology, etymology, and distribution are provided. Six species are endemic and native to Thailand, while one species, namely C. larsenii P. Saensouk is native to Thailand and Laos PDR. A revised key to 7 species and descriptions is also presented.
Curcuma pulcherrima (Zingiberaceae), a new rare species of Curcuma subgen. Ecomata from eastern Thailand PIYAPORN SAENSOUK; THAWATPHONG BOONMA; SURAPON SAENSOUK
Biodiversitas Journal of Biological Diversity Vol. 23 No. 12 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d231262

Abstract

Abstract. Saensouk P, Boonma T, Saensouk S. 2022. Curcuma pulcherrima (Zingiberaceae), a new rare species of Curcuma subgen. Ecomata from eastern Thailand. Biodiversitas 23: 6635-6644. Curcuma pulcherrima Boonma, Saensouk & P. Saensouk sp. nov. (Zingiberaceae: Zingibereae, belonging to Curcuma subgenus Ecomata) distributed in Ubon Ratchathani Province, the eastern part of Thailand. The morphological characteristic of this species causes it to fall into Curcuma subgenus Ecomata due to the presence of epigynous glands, lack of coma bracts, bracts fused only at the base, and production of open-form flowers. Furthermore, this species is similar to Curcuma pierreana Gagnep., due to its similar color flowers with a pink tinge, but lighter (vs. C. pierreana maroon tip), and similar to Curcuma siamensis Saensouk & Boonma due to its characteristics of the anther and spurs. Nevertheless, after careful morphological examination and comparison of all allied species in the Curcuma genus, especially in subgenus Ecomata, it was found that this plant did not match any existing species. Therefore, we describe it here as a new species to science with the name of Curcuma pulcherrima, according to this species's very beautiful inflorescences and flowers. In contrast, its morphological characteristics description, illustrations, vernacular name, ecology, phenology, distribution, utilization, conservation status, map of distribution, and comparison table of the new species and its ally species, including a revised key to the species of Curcuma subgenus Ecomata are provided.
Chromosome number of three Bambusa species (Poaceae) in northeastern communities of Thailand PIYAPORN SAENSOUK; SURAPON SAENSOUK; SUMRUAY SUDCHALEAW; SARAWOOD SUNGKAEW
Biodiversitas Journal of Biological Diversity Vol. 24 No. 8 (2023)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d240857

Abstract

Abstract. Saensouk P, Saensouk S, Sudchaleaw S, Sungkaew S. 2023. Chromosome number of three Bambusa species (Poaceae) in northeastern communities of Thailand. Biodiversitas 24: 4544-4547. Bambusa is a genus within subfamily Bambusoideae, family Poaceae. This study aimed to conduct the chromosome numbers of three Bambusa species in the northeastern Communities of Thailand. All three Bambusa species were studied with somatic chromosome numbers from root tips by squash methods. The somatic chromosome numbers, ploidy, and chromosome size in length from the root tips of three Bambusa species are provided. The somatic chromosome numbers range from 2n = 56 to 2n = 72. Bambusa bambos (L.) Voss was reported as 2n = 56 with high ploidy (heptaploid or 7x), B. burmanica Gamble was reported to be 2n = 72 with high ploidy (nonaploid or 9x), and B. tuldoides Munro was investigated to be 2n = 64 with high ploidy (octaploid or 8x). The basic chromosome number of three Bambusa species studied was x=8. The chromosome numbers of B. burmanica was studied for the first time. The chromosome length of all species was very short between 0.80 µm in B. burmanica and 1.30 µm in B. bambos.
Co-Authors SARAWOOD SUNGKAEW SUMRUAY SUDCHALEAW SURAPON SAENSOUK SURAPON SAENSOUK SURAPON SAENSOUK Thawatphong Boonma THAWATPHONG BOONMA