Research Paper

Begonia matahom (Section Petermannia, Begoniaceae), a new species from Tago, Surigao del Sur, Philippines

Freddie A. Blasco, Grecebio Jonathan D. Alejandro, Danilo N. Tandang, Rosario R. Rubite

Published on: 04 March 2024

Page: 62 - 66

DOI: 10.6165/tai.2024.69.62

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    Abstract

    In a recent field survey at Mt. Tingtingan, Badong, Tago, Surigao del Sur, an interesting Begonia with a robust habit was found. With the cane-like, erect and ascending or spreading suffrutescent stem, 2-tepaled staminate flowers and 5-tepaled pistillate flowers, this species belongs to section Petermannia. It's worth noting that the staminate and pistillate flowers of this species exhibit different tepal colors. This new Begonia resembles its Surigao ally B. benitotanii in having erect and glabrous stems, leaf adaxial surface with sparsely white spots between veins, obliquely cordate base, acuminate apex and serrated margin, but the new species named Begonia matahom is distinct in having larger stems that are woody and thick, ovate to triangular leaf shape, larger lamina, longer petioles, longer bracts, glabrous staminate tepals, yellowish-green pistillate flowers, stigmas in a curled spirally extended band with prominent cilia to conspicuously feathery, and smaller green ovary with glabrous and thick, unequal wings.

    Keyword: Argostemma, Begonia benitotanii, limestone forest, Mindanao, Mt. Tingtingan, taxonomy

    Literature Cited

    Amoroso, V.B., Lamparas, R.J.V., Lagunday N.E., Dapar, M.L.G., Rubite, R.R. 2023 Begonia fritschiana (Begoniaceae, Begonia section Baryandra) a new species from Quezon, Bukidnon, Philippines. Phytotaxa 587(1): 39–46.
    DOI: 10.11646/phytotaxa.587.1.5View Article Google Scholar

    Blasco, F.A., Tandang, D.N., Alejandro, G.J.D., Bucay, M.A.C., Cortes, J.C., Rubite, R.R. 2023 Begonia noraaunorae (section Petermannia, Begoniaceae) a new species endemic to Surigao del Sur, Mindanao Island, Philippines. Phytotaxa 620(2): 193–197.
    DOI: 10.11646/phytotaxa.620.2.8View Article Google Scholar

    de Candolle, A. 1859 Memoire Sur La Famille Des Begoniacees. Ann. Sci. Nat., Bot. 11: 122–134.

    Hughes, M., Moonlight, P.W., Jara-Mu?oz, A., Tebbitt, M.C., Wilson, H.P., Pullan, M. 2015– Begonia Resource Centre. Online database available from [http://padme.rbge.org.uk/begonia/]

    Ilagan, V.A.D., Alejandro, G.J.D., Paraguison, D.J.B., Perolina, S.M.W., Raterta, R., Blasco, F.A. 2022 Ethnopharmacological Documentation and Molecular Authentication of Medicinal Plants used by the Manobo and Mamanwa tribes of Surigao del Sur, Philippines. Biodiversitas 23(6): 3185–3202.
    DOI: 10.13057/biodiv/d230646View Article Google Scholar

    IUCN Standards & Petitions Committee 2022 Guidelines for Using the IUCN Red List Categories and Criteria. Version 15.1. Available from:https://www.iucnredlist.org/documents/RedListGuidelines.pdf

    Klotzsch, J.F. 1854 Begoniaceen-Gattungen und Arten. Abh. Konigl Akad. Wiss. Berlin, pp. 194–243.

    Mazo, K.R.F., Salatan N.L., Rubite, R.R. 2023 A new species of Begonia section Baryandra from Zamboanga Peninsula, Southwestern Philippines. Webbia 78(2): 87–92.

    Moonlight, P.W., Ardi, W.H., Padilla, L.A., Chung, K.-F., Fuller, D., Girmansyah, D., Hollands, R., Jara-Mu?oz, A., Kiew, R., Leong, W.-C., Liu, Y., Mahardika, A., Marasinghe, L.D.K., O’Connor, M., Peng, C.-I, Pei?rez, A.J., Phutthai, T., Pullan, M., Rajbhandary, S., Reynel, C., Rubite, R.R., Julia, S., Scherberich, D., Shui, Y.-M., Tebbitt, M.C., Thomas, D.C., Wilson, H.P., Zaini, N.H., 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

    Rubite, R.R. 2012 Delimitation of Begonia L. sections Diploclinium and Baryandra (Begoniaceae) in the Philippines. Asia Life Sci. 21: 363–373.

    Rubite, R.R., Brillantes, R.Y., Tandang, D.N., Moran, C.B., Rule, M.G.Q., Lin, C.W. 2021 Begonia benitotanii (section Petermannia, Begoniaceae) a new species endemic to the Philippine island of Bucas Grande. Phytotaxa 513(3): 257–264.
    DOI: 10.11646/phytotaxa.513.3.5View Article Google Scholar