Curcuma woodii (Zingiberaceae), a new species from Thailand

Chen, Juan; Lindström, Anders J.; Xia, Nian‐He

doi:10.11646/phytotaxa.227.1.8

Cited by 13 publications

(7 citation statements)

References 20 publications

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“…Products from rhizomes of C. comosa have been developed for use as an anti-inflammation remedy and for treatment of uterine abnormalities and ovarian hormone deficit [53,54]. [55]; b, Puangpairote [56]; c, Jenjittikul and Larsen [57]; d, Larsen [6]; e, Maknoi et al [49]; f, Boonma and Saensouk [48]; g, Chen et al [58]; and h, Puangpairote et al [59]. Chromosome/ploidy references: 1.…”

Section: The Genus Curcuma In Thailandmentioning

confidence: 99%

Polyploidy in the Ginger Family from Thailand

Anamthawat‐Jónsson¹,

Umpunjun²

2020

Chromosomal Abnormalities

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Polyploidy is common in the ginger family Zingiberaceae. The aims of the present paper are (1) to provide a general introduction on species diversity with emphasis on conservation; (2) to highlight the human-use significance of this family, focusing on the two major genera, Zingiber (ginger) and Curcuma (turmeric); (3) to present chromosome number data from 45 natural and cultivated Curcuma taxa from Thailand, of which polyploids are predominant; and (4) to describe our own work on cytotaxonomy of selected Thai Curcuma species. We obtained somatic chromosome numbers from root tips and analysed meiotic chromosome behaviour from flowers. We also used the molecular cytogenetic method of ribosomal gene mapping on chromosomes to infer mechanism of polyploidization and reveal genomic relationships among closely related species. The main results of our cytogenetic studies include the following. The most sought-after medicinal Curcuma cultivars growing on a large-scale basis are secondary triploids, so as taxa in natural habitats that are harvested for local utilisation. These triploids are sexually deficient, due to meiotic pairing abnormalities, but they are propagated asexually via rhizomes. The ribosomal mapping results indicate natural triploidization process via hybridisation, either within populations or across the species boundaries.

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Section: The Genus Curcuma In Thailandmentioning

confidence: 99%

Polyploidy in the Ginger Family from Thailand

Anamthawat‐Jónsson¹,

Umpunjun²

2020

Chromosomal Abnormalities

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“…The morphological characteristics of C. lampangensis are compared to type specimen from the digital image of herbarium specimen available online from AAU (M. Collins VH8077) and all existing published literature of C. rhomba J. Mood & K. Larsen (Souvannakhoummane and Maknoi 2014;Tanaka and Aung 2019;Chen et al 2015) and C. sabhasrii is compared to type specimen from QBG (P. Srisanga, M. Norsaengsri, W. La-ongsri, S. Suk-ieam, K. Phoutthavong & K. Souvannakhoummane L2-294) and all existing published literature of C. peramoena Souvann. & Maknoi (Souvannakhoummane and Maknoi 2014).…”

Section: Methodsmentioning

confidence: 99%

Curcuma lampangensis and C. sabhasrii, two new species of the family Zingiberaceae from northern Thailand

RAKARCHA¹,

Saensouk

MAKNOI

et al. 2022

Biodiversitas

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Abstract. Rakarcha S, Saensouk S, Maknoi C, Wongnak M, Thammarong W, Saensouk P. 2022. Curcuma lampangensis and C. sabhasrii, two new species of the family Zingiberaceae from northern Thailand. Biodiversitas 23: 4448-4459. Curcuma lampangensis Saensouk, Maknoi & Rakarcha and C. sabhasrii Saensouk, Maknoi, Wongnak & Rakarcha, two new species of ginger family (Zingiberaceae) from northern Thailand, are described, illustrated and photographed. Additionally, the authors provide their detailed morphological descriptions, as well as illustrations, color photographs, distributions, ecology, etymology, phenology, vernacular, conservation status and its closely related species. The two new species are assignable to the Curcuma subgenus Ecomatae. Curcuma lampangensis and C. sabhasrii are endemic to Lampang and Phitsanulok provinces of northern Thailand, respectively. The morphological characteristics of C. lampangensis are compared to C. rhomba J. Mood & K. Larsen while C. sabhasrii is compared to C. peramoena Souvann. & Maknoi. Curcuma lampangensis is recognized by its glabrous on nearly all parts of the plant, creeping rhizome and the inflorescence usually arises from a new rhizome branch next to the existing pseudostem, flowers that are white to pale pink and white to pale yellow labellum with 2 dark yellow bands at the center and reddish tinge at the base. Curcuma sabhasrii is recognized by having 8-15 greenish to reddish-purple bracts, reddish-purple corolla lobes, white with reddish-purple mottling to reddish-purple staminodes and labellum which is reddish-purple with an embossed yellow path along the midrib from base to apex and reddish-purple mottling on yellow mid-band of lower half. A key to 24 species of Curcuma subgenus Ecomatae in Thailand is presented.

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“…Measurements were recorded from living, dry specimens and spirit specimens. Type specimens from both new species of morphologically similar species were compared, and verified, including using digital images available online, and all the published literature of Curcuma especially in subgenus Ecomata (Maknoi 2006;Maknoi et al 2006;Sirirugsaet al 2007;Chen et al 2015;Maknoi et al 2019;Leong-Škorničková et al 2020;Saensouk et al 2021a)with the living dry specimens and spirit specimens under a stereoscopic microscope. A preliminary conservation assessment was prepared based on the IUCN Red List categories.…”

Section: Plant Materials and Photographs Of Curcuma Arunamentioning

confidence: 99%

Two new species of Curcuma L. (Zingiberaceae) from Thailand

Maknoi

Saensouk

et al. 2021

Biodiversitas

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Abstract. Maknoi C, Saensouk S, Saensouk P, Rakarcha S, Thammarong W. 2021. Two new species of Curcuma L. (Zingiberaceae) from Thailand. Biodiversitas 22: 3910-3921. Curcuma aruna and C. pitukii, two new species from northern Thailand, are described, illustrated, and photographed. They are endemic to Sukhothai and Lampang Provinces, northern Thailand, and the morphological characteristics of two new species are compared with their closest species, C. flaviflora, C. eburnea, and C. pierreana. Two new species, C. aruna and C. pitukii are assignable to Curcuma subgenus Ecomata. C. aruna is recognized by leaves ovate with thin chartaceous, fertile bracts 6–12, it’s glabrous on nearly all parts of the plant, flowers yellow and labellum yellow with 2 darker yellow bands in the center. C. pitukii is recognized by bracts 20–40 with purplish white to purple, corolla lobes purplish white to pale purple, staminodes white, and labellum white with an embossed yellow path along the midrib from base to apex. A detailed description, distribution, ecology, etymology, preliminary conservation status, and photographs of two new species are provided. A key to 20 species of Curcuma subgenus Ecomata in Thailand is presented.

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Curcuma woodii (Zingiberaceae), a new species from Thailand

Cited by 13 publications

References 20 publications

Polyploidy in the Ginger Family from Thailand

Polyploidy in the Ginger Family from Thailand

Curcuma lampangensis and C. sabhasrii, two new species of the family Zingiberaceae from northern Thailand

Two new species of Curcuma L. (Zingiberaceae) from Thailand

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