Research Paper

Studies on the Araceae of Sulawesi II: Two new species of Alocasia (Araceae—Alocasieae) from South and Southeast Sulawesi

Ni Putu Sri Asih, Agung Kurniawan, Tri Warseno, Aninda Retno Utami Wibowo

Published on: 01 July 2026

Page: 559 - 565

DOI: 10.6165/tai.2026.71.559

Abstract

Two new Indonesian species of Alocasia (Araceae) are described from material cultivated in Bali Botanic Garden: Alocasia crispa Asih & Wibowo originally collected from Latimojong Regency, South Sulawesi and Alocasia kolakaensis Asih & Wibowo originally from Kolaka Regency, Southeast Sulawesi. The species are assigned respectively in the Alocasia Longiloba and Puber groups. A key to the species of Alocasia of Sulawesi is provided.

Keyword: Alocasia crispa, Alocasia kolakaensis, endemic, Kolaka Regency, Latimojong, Longiloba, Puber, Sulawesi

Literature Cited

Asih, N.P.S., Erlinawati, I., Yuzammi, Hadiah, J.T. 2024 The Araceae of Sumatra I: A new species of Alocasia from Aceh, Indonesia. PhytoKeys 249: 223–229.
DOI: 10.3897/phytokeys.249.133737View Article Google Scholar

Boyce, P.C. 2007 Studies on the Alocasia Schott (Araceae-Colocasieae) of Borneo: I Two new species from Sarawak, Malaysian Borneo. Gard. Bull. Singapore 58(2): 141–154.

Boyce, P.C. 2008 A review of Alocasia (Araceae: Colocasieae) for Thailand including a novel species and new species records from South-West Thailand. Thai For. Bull. (Bot.) 36: 1–17.

Hay, A. 1994 Alocasia simonsiana, a new species of Araceae from New Guinea. Blumea 38: 331–333

Hay, A. 1998 The genus Alocasia (Araceae-Colocasieae) in West Malesia & Sulawesi. Gard. Bull. Singapore 50(2): 221–334.

Hay, A. 1999 The genus Alocasia (Araceae-Colocasieae) in the Philippines. Gard. Bull. Singapore 51(1): 1–41.

Hay, A. 2000 Alocasia nebula. Curtis's Bot. Mag. 17(1): 14–18, Pl. 381.
DOI: 10.1111/1467-8748.00240View Article Google Scholar

Hay, A., Prameswara 2023 Alocasia tandurusa Prameswara & A.Hay, a new (bi)pinnatifid-leaved species from Sulawesi [Araceae, tribe Alocasieae (Schott) A.Hay], with notes on tribal classification for the paraphyletic grade of Old World Colocasioids. Aroideana 46(2): 388–405.

Hay, A., Wise, R. 1991 The genus Alocasia in Australasia. Blumea 35: 499–545.

IUCN Standards and Petitions Committee 2024 Guidelines for Using the IUCN Red List Categories and Criteria. Version 16. Prepared by the Standards and Petitions Committee. Accessed on 25 September 2025. https://www.iucnredlist.org/documents/RedListGuidelines.pdf

Khant, Z.H., Na?ve, M.A.K., Serebryanyi, M.M. 2022 Taxonomic studies of Araceae in Myanmar V: a new Alocasia species from Myanmar and Thailand. Nord. J. Bot. 2022(10): e03731.
DOI: 10.1111/njb.03731View Article Google Scholar

Krause, K., Engler, A. 1920 Additamentum ad Araceas-Philodendroideas, Araceae-Colocasioideae. In Engler, A. (ed.), Das Pflanzenreich 71(IV.23E): 3–132.

Kurniawan, A., Boyce, P.C. 2011 Studies on the Alocasia Schott (Araceae-Colocasieae) of Borneo II: Alocasia baginda, a new species from Eastern Kalimantan, Indonesian Borneo. Acta Phytotax. Geobot. 60(3): 123–126.

Medecilo, M.P., Yao, G.C., Madulid, D.A. 2007 A new species of Alocasia (Araceae: Colocasieae) from Panay Island, Philippines. J. Bot. Res. Inst. Texas 1(2): 815–818.

Medecilo, M.P., Madulid, D.A. 2013 A Review of the Taxonomy and Taxonomic Characters of Philippine Alocasia (Schott) G. Don (Araceae). Philipp. J. Sci. 142(Special Issue): 145–157.

Nguyen, V.D., Matthews, P.J. 2018 Rediscovery of Alocasia decumbens, a rare endemic species in northern Vietnam, and its conservation status. Aroideana 41(1): 127–138.

Nguyen, V.D., Croat, T.B., Luu, H.T., Lee, C.Y., Lee, J., de Kok, R. 2013 Two new species of Alocasia (Araceae, Colocasieae) from Vietnam. Willdenowia 43(2): 293–299.
DOI: 10.3372/wi.43.43209View Article Google Scholar

Nugroho, B.T.A., Santika, Y. 2008 Exploration and Inventory of Araceae Genera in Silui Mountain and Uluisimbone Forest, Kolaka Regency, South-East Sulawesi. Biodiversitas 9(4): 288–291.
DOI: 10.13057/biodiv/d090410View Article Google Scholar

Wong, K.M., Boyce, P.C. 2016 Novitates Bruneienses, 6. Alocasia azlanii (Araceae), a new species from Brunei. Acta Phytotax. Geobot. 67(3): 185–189.

Wong, S.Y., Boyce, P.C. 2020 Studies on the Alocasia Schott (Araceae) of Borneo III: Alocasia puncakborneensis, a new species belonging to the Princeps Complex. Webbia 75(1): 111–115.
DOI: 10.36253/jopt-7946View Article Google Scholar

Yuzammi, Hay, A. 1998 Alocasia suhirmaniana (Araceae-Colocasiae) a spectacular new aroid from Sulawesi, Indonesia. Telopea 7(4): 303–306.
DOI: 10.7751/telopea19982000View Article Google Scholar

Yuzammi, Hay, A. 2002 A new species of Alocasia (Araceae) from Sulawesi. Aroideana 25: 70–75.

Zulhazman, H., Norzielawati, S., Boyce, P.C. 2017 Studies on the Alocasia clade (Araceae) of Peninsular Malaysia I: Alocasia farisii sp. nov. from limestone in Kelantan. Nord. J. Bot. 35(3): 300–304.
DOI: 10.1111/njb.01436View Article Google Scholar