Trigonobalanus

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fagales

Familia: Fagaceae
Genus: Trigonobalanus
Species: T. doichangensis – T. excelsa – T. verticillata
Source(s) of checklist:
Name

Trigonobalanus Forman, Taxon 11: 140 (1962); et in Kew Bull. 17: 381 (1964), descr. emend.

Type species: Trigonobalanus verticillata Forman, Taxon 11: 140 (1962); et in Kew Bull. 17: 383 (1964)

Synonyms

Heterotypic
Colombobalanus Nixon & Crepet, Amer. J. Bot. 76: 840 (1989)
Formanodendron Nixon & Crepet, Amer. J. Bot. 76: 840 (1989)

Primary references
Primary references

Forman, L.L. 1962. A new genus in the Fagaceae. Taxon 11(4): 139–140. DOI: 10.1002/j.1996-8175.1962.tb00030.x Paywall JSTOR Paywall Reference page.
Forman, L.L. 1964. Trigonobalanus, a new genus of Fagaceae, with notes on the classification of the family. Kew Bulletin 17(3): 381-396. DOI: 10.2307/4113784 Hybrid open access journal Reference page.

Additional references

Chen, G., Sun, W.-B., Han, C.-Y. & Coombes, A. 2007. Karyomorphology of the endangered Trigonobalanus doichangensis (A.Camus) Forman (Fagaceae) and its taxonomic and biogeographical implications. Botanical Journal of the Linnean Society 154(3): 321–330. DOI: 10.1111/j.1095-8339.2007.00670.x Open access Reference page.
Ng, S.-C. & Lin, J.-Y. 2008. A new distribution record for Trigonobalanus verticillata (Fagaceae) from Hainan Island, South China. Kew Bulletin 63(2): 341–344. JSTOR Hybrid open access journal Reference page.

Links

Govaerts, R. et al. 2022. Trigonobalanus in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2022 Apr 03. Reference page.
Govaerts, R. et al. 2022. Trigonobalanus in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2022 Apr 03. Reference page.
Hassler, M. 2021. Trigonobalanus. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Jul 06. Reference page.
Hassler, M. 2021. World Plants. Synonymic Checklist and Distribution of the World Flora. . Trigonobalanus. Accessed: 06 Jul 2021.
International Plant Names Index. 2022. Trigonobalanus. Published online. Accessed: 03 Apr 2022.
Tropicos.org 2022. Trigonobalanus. Missouri Botanical Garden. Published online. Accessed: 03 Apr 2022.
USDA, ARS, Germplasm Resources Information Network. Trigonobalanus in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
日本語: カクミガシ属

Trigonobalanus is a genus of three species of evergreen trees in the family Fagaceae, related to oaks, beeches and chestnuts. The species are widely scattered, with one in northern South America and two in southeast Asia; some botanists treat the three species in separate genera. The three species, with their authors, major synonyms, and distribution, are:

Trigonobalanus doichangensis (A.Camus) Forman (syn. Formanodendron doichangensis (A.Camus) Nixon & Crepet) - subtropical Yunnan to northern Thailand
Trigonobalanus excelsa Lozano, Hern. Cam. & Henao (syn. Colombobalanus excelsa (Lozano, Hern. Cam. & Henao) Nixon & Crepet) - endemic to Colombia
Trigonobalanus verticillata Forman - tropical Indonesia and the Malay Peninsula