(Rubiaceae) Diplospora dubia (Lindl.) Masam.
Local name(s): ກົກ ແສນ ໄຊ (kohk sehn xai) ; ຕັງ ເບີ ນ້ອຍ (tang beu noy)
Medicinal use(s): treat rheumatism (stem), stomach ache (leaves)
Part(s) used: stem, leaf
Field Characters: Treelet, fruits green, turning reddish red, then blackish red, glossy, set in small, extra-axillary cymes, stipule accular-subulate.
Locality: Oudomxay Province, Muang Xay District, Donxay Village, Medicinal Biodiversity Preserve, about 3 km south of city.
Habitat: Forested slope in a broadleaved, mixed evergreen lowland tropical rainforest on a mountain slope.
Altitude: 950-970 m asl
Collector(s): D.D. Soejarto, K. Sydara, M. Xayvue
Collection number(s): DDS 15109
Collection Date: September 26, 2014
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Local name(s): ກົກ ແສນ ໄຊ (kohk sehn xai) ; ຕັງ ເບີ ນ້ອຍ (tang beu noy)
Medicinal use(s): treat rheumatism, stomach ache
Part(s) used: root
Field Characters: Shrub, fruits red.
Locality: Oudomxay, Muang Xay District, Donxay Village, Medicinal Biodiversity Preserve, about 3 km south of city.
Habitat: Forest at bottom of slope in a broadleaved, mixed evergreen lowland tropical rainforest on a mountain slope.
Altitude: 740 m asl
Collector(s): D.D. Soejarto, K. Sydara, M. Xayvue
Collection number(s): DDS 15130
Collection Date: September 27, 2014
Additional information:
Voucher specimen is in deposit at the Field Museum (F) Herbarium, Chicago, USA under accession no. 2314139, 2314140Synonyms, images, taxonomic description:
Plants of the World onlineFlora of China Vol. 19 Page 99GBIF | Global Biodiversity Information Facility
Medicinal properties:
Awouafack MD, Tane P, Morita H. Tricalycoside, a New Cerebroside from Tricalysia coriacea (Rubiaceae). Chemistry & Biodiversity 2018, volume15, Issue1. First published: 08 November 2017. https://doi.org/10.1002/cbdv.201700472
He D-H, Matsunami K, Otsuka H, et al. Tricalysiosides H–O: Ent-kaurane glucosides from the leaves of Tricalysia dubia. Phytochemistry 2005, volume 66, issue 24, pages 2857-2864. ISSN 0031-9422. https://doi.org/10.1016/j.phytochem.2005.09.014. (https://www.sciencedirect.com/science/article/pii/S0031942205004644)
Nishimura K, Hitotsuyanagi Y, Sugeta N, et al. Tricalysiamides A-D, diterpenoid alkaloids from Tricalysia dubia. J Nat Prod 2007,70(5):758-62. doi: 10.1021/np0680681. Epub 2007 Apr 6. PMID: 17411093.