Research Paper
Begonia andariasii (Begoniaceae), a new species from Mamasa, Sulawesi
Wendy A. Mustaqim, Wisnu H. Ardi
Published on: 11 August 2026
Page: 638 - 942
DOI: 10.6165/tai.2026.71.638
Abstract
Begonia andariasii (Begoniaceae) is described as a new species endemic to Mamasa Regency, Sulawesi Barat Province, Indonesia. The species is provisionally assigned as Critically Endangered (CR). Detailed descriptions, distribution, photographs, and discussions are given.
Keyword: Begonia ranoposoensis, Cucurbitales, herbs, Indonesia, taxonomy, Wallacea
Literature Cited
Ardi, W.H., Chikmawati, T., Witono, J.R., Thomas, D.C. 2018 A synopsis of Begonia (Begoniaceae) of Southeastern Sulawesi including four new species. Phytotaxa 381(1): 27–50.
DOI: 10.11646/phytotaxa.381.1.7View Article
Google Scholar
Ardi, W.H., Girmansyah, D., Zulfadli, Thomas, D.C. 2021 Begonia willemii, a new species of Begonia from Sulawesi, Indonesia. Taiwania 66(3): 374–377.
DOI: 10.6165/tai.2021.66.374View Article
Google Scholar
Ardi, W.H., Made Ardaka, I., Siregar Hartutiningsih, M., Nyoman Lugrayasa, I., Thomas, D.C. 2014 Two new species of Begonia (Begoniaceae) from Sulawesi, Indonesia. Edinb. J. Bot. 71(2): 259–268.
DOI: 10.1017/S0960428614000092View Article
Google Scholar
Ardi, W.H., Thomas, D.C. 2019 A new species of Begonia (Begoniaceae) from South Sulawesi, Indonesia, and an augmented description of Begonia bonthainensis. Reinwardtia 18(1): 19–26.
DOI: 10.14203/reinwardtia.v18i1.3691View Article
Google Scholar
Ardi, W.H., Thomas, D.C. 2020 Begonia tjiasmantoi, a new species from West Sulawesi. Reinwardtia 19(1): 61–65.
DOI: 10.14203/reinwardtia.v19i1.3848View Article
Google Scholar
Ardi, W.H., Thomas, D.C. 2022 Synopsis of Begonia (Begoniaceae) from the northern arm of Sulawesi and Sangihe Island, Indonesia, including three new species. Edinb. J. Bot. 79(2022): 1–50.
DOI: 10.24823/ejb.2022.405View Article
Google Scholar
Ardi, W.H., Zubair, M.S., Ramadanil, Thomas, D.C. 2019 Begonia medicinalis (Begoniaceae), a new species from Sulawesi, Indonesia. Phytotaxa 423(1): 41–45.
DOI: 10.11646/phytotaxa.423.1.5View Article
Google Scholar
Bachman, S., Moat, J., Hill, A.W., De La Torre, J., Scott, B. 2011 Supporting Red List threat assessments with GeoCAT: Geospatial conservation assessment tool. ZooKeys 150: 117–126.
DOI: 10.3897/zookeys.150.2109View Article
Google Scholar
Bramley, G. 2020 Begoniaceae. In: Utteridge, T.M.A., Bramley, G. (eds). The Kew Tropical Plant Families Identification Handbook. Richmond: Kew Publishing, pp. 86–87.
Davies, N., Drinkell, C., Utteridge, T.M.A. 2023 The Herbarium Handbook. Richmond: Royal Botanic Gardens Kew.
Dayanti, E.P., Pitopang, R., Ardi, W.H., Thomas, D.C. 2020 Two new species of Begonia (Begoniaceae, section Petermannia) from Mount Sidole, Central Sulawesi, Indonesia. Phytotaxa 439(2): 136–142.
DOI: 10.11646/phytotaxa.439.2.4View Article
Google Scholar
de Wilde, J.J.F.E. 2011 Begoniaceae. In: Kubitzki, K. (ed.). The Families and Genera of Vascular Plants 10. Berlin: Springer-Verlag, pp. 56–71.
Girmansyah, D., Wiriadinata, H., Thomas, D.C., Hoover, W.S. 2009 Two new species and one new subspecies of Begonia (Begoniaceae) from Southeast Sulawesi, Indonesia. Reinwardtia 13(1): 69–74.
Hughes, M. 2006 Four new species of Begonia (Begoniaceae) from Sulawesi. Edinb. J. Bot. 63(2–3): 191–199.
DOI: 10.1017/S0960428606000588View Article
Google Scholar
Hughes, M., Moonlight, P.W., Jara-Mu?oz, A., Tebbitt, M.C., Wilson, H.P., Zhong, K., Mills, T., Pullan, M. 2015–onwards Begonia Resource Centre. Online database available from http://padme.rbge.org.uk/begonia/ (accessed 8 February 2026)
IUCN 2012 IUCN Red List Categories and Criteria: Version 3.1. Gland/Cambridge: IUCN.
IUCN Standards and Petitions Committee 2024 Guidelines for using the IUCN Red List Categories and Criteria. Version 16. Standards and Petitions Subcommittee: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 8 February 2026)
Lin, C.W., Thomas, D.C., Ardi, W.H., Peng, C.I. 2017 Begonia ignita (sect. Petermannia, Begoniaceae), a new species with orange flowers from Sulawesi, Indonesia. Gard. Bull. Singapore 69(1): 89–95.
DOI: 10.26492/gbs69(1).2017-06View Article
Google Scholar
Linnaeus, C. 1753 Species Plantarum. Laurentii Salvii. Holmiae. 1200 pp.
Moonlight, P.W., Ardi, W.H., Padilla, L.A., Chung, K., Fuller, D., Girmansyah, D., Hollands, R., Jara-Mu?oz, A., Kiew, R., Leong, W., Liu, Y., Mahardika, A., Marasinghe, L.D.K., O’Connor, M., Peng, C., P?rez, ?.J., Phutthai, T., Pullan, M., Rajbhandary, S., Reynel, C., Rubite, R.R., Sang, J., Scherberich, D., Shui, Y., Tebbitt, M.C., Thomas, D.C., Wilson, H.P., Zaini, N.H. and Hughes, M. 2018 Dividing and conquering the fastest–growing genus: Towards a natural sectional classification of the mega–diverse genus Begonia (Begoniaceae). Taxon 67(2): 267–323.
DOI: 10.12705/672.3.S1View Article
Google Scholar
QGIS.org 2026 QGIS Geographic Information System. QGIS Association. http://www.qgis.org (accessed 22 April 2026)
Saleh, M.F.R.M., Bandjolu, K.P., Ardi, W.H., Thomas, D.C. 2023 Begonia ranoposoensis (Begoniaceae), a new species from Sulawesi, Indonesia. Taiwania 68(2): 180–184.
DOI: 10.6165/tai.2023.68.180View Article
Google Scholar
Thomas, D.C., Ardi, W.H. 2019 Begonia mabberleyana (Begoniaceae), a new species from Central Sulawesi, Indonesia. Gard. Bull. Singapore 71(Suppl. 2): 217–223.
DOI: 10.26492/gbs71(suppl.2).2019-16View Article
Google Scholar
Thomas, D.C., Ardi, W.H. 2020 Synopsis of Begonia (Begoniaceae) of southwest Sulawesi and the Selayar Islands, Indonesia, including one new species. Phytotaxa 437(2): 73–96.
DOI: 10.11646/phytotaxa.437.2.4View Article
Google Scholar
Thomas, D.C., Ardi, W.H., Girmansyah, D., Hughes, M. 2013–onwards Sulawesi Begonia Data Portal. http://portal.cybertaxonomy.org/flora-malesiana-prospective/ (accessed 10 January 2026)
Thomas, D.C., Ardi, W.H., Hughes, M. 2009a Two new species of Begonia (Begoniaceae) from Central Sulawesi, Indonesia. Edinb. J. Bot. 66(1): 103–114.
DOI: 10.1017/S0960428609005320View Article
Google Scholar
Thomas, D.C., Ardi, W.H., Hughes, M. 2011 Nine new species of Begonia (Begoniaceae) from South and West Sulawesi, Indonesia. Edinb. J. Bot. 68(2): 225–255.
DOI: 10.1017/S0960428611000072View Article
Google Scholar
Thomas, D.C., Ardi, W.H., Siregar Hartutiningsih, M., Hughes, M. 2009b Two new species of Begonia (Begoniaceae) from South Sulawesi, Indonesia. Edinb. J. Bot. 66(2): 229–238.
DOI: 10.1017/S0960428609005484View Article
Google Scholar
Thomas, D.C., Bour, A., Ardi, W.H. 2018 Begonia of the Matarombeo karst, Southeast Sulawesi, Indonesia, including two new species. Gard. Bull. Singapore 70(1): 163–174.
DOI: 10.26492/gbs70(1).2018-15View Article
Google Scholar
Thomas, D.C., Hughes, M., Phutthai T, Ardi, W.H., Rajbhandary S., Rubite R.R., Twyford A.D., Richardson J.E. 2012 West to east dispersal and subsequent rapid diversification of the mega-diverse genus Begonia (Begoniaceae) in the Malesian Archipelago. J. Biogeogr. 39(1): 98–113.
DOI: 10.1111/j.1365-2699.2011.02596.xView Article
Google Scholar
Thomas, D.C., Hughes, M. 2008 Begonia varipeltata (Begoniaceae): a new peltate from Sulawesi, Indonesia. Edinb. J. Bot. 65(3): 369–374.
DOI: 10.1017/S096042860800509XView Article
Google Scholar
Thomas, D.C., Ardi, W.H., Chong, Y.H., Thomas, P., Hughes, M. 2024 Conservation status assessments of species-rich tropical taxa in the face of data availability limitations: insights from Sulawesi Begonia. Sci. Rep. 14: art. 14007.
DOI: 10.1038/s41598-024-64319-7View Article
Google Scholar
Wiriadinata, H. 2013 A new species of Begonia (Begoniaceae) from South Sulawesi, Indonesia. Reinwardtia 13: 445–448.

