Abstract
A subspecies new to science, Begonia bangsamoro subsp. bagasa Naive (section Petermannia) discovered in Zamboanga del Sur, Western Mindanao, Philippines is herewith described and illustrated. The new subspecies differs significantly from the type subspecies in having staminate and pistillate flowers with very narrow tepals. A colour plate, notes on its distribution, habitat, phenology, proposed conservation assessment based on IUCN criteria as well as a checklist of Begonia species present in Zamboanga Peninsula are provided. With this discovery, Zamboanga Peninsula now holds a total of 17 Begonia taxa, and the very first subspecies described for the Philippine archipelago.
References
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Naive, M.A.K., Mazo, K.R.F. & Hughes, M. (2022) Taxonomy of the genus Begonia (Begoniaceae) in Mindanao, Philippines II: Lectotypification of two Begonia section Petermannia species from Zamboanga Peninsula. Kew Bulletin 77: 139–146. https://doi.org/10.1007/s12225-022-10008-5
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Thiers, B.M. (2022) Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 14 February 2022)
Viernes-Enriquez, J. (1990) A legend of the Subanen “Buklog”. Asian Folklore Studies 49: 109–123. https://doi.org/10.2307/1177951
Yumul, G.P., Dimalanta, C.B., Tamayo, R.A., Maury, R.C., Bellon, H., Polve, M., Maglambayan, V.B., Querubin, C.L. & Cotten, J. (2004) Geology of the Zamboanga Peninsula, Mindanao, Philippines: an enigmatic South China continental fragment? Geological Society, London, Special Publications 226: 289–312. https://doi.org/10.1144/GSL.SP.2004.226.01.16
Beentje, H.J. (2010) The Kew plant glossary: an illustrated dictionary of plant terms. Royal Botanic Gardens, Kew, 184 pp.
Blume, C.L. (1827) Enumeratio Plantarum Javae et insularum adjacentium minus cognitarum vel novarum ex herbariis Reinwardtii, Kuhlii, Hasseltii et Blumii. Apud J.W. van Leeuwen, Lugduni Batavorum [Leiden]. https://doi.org/10.5962/bhl.title.44901
Buenavista, D.P., Ang, Y.P., Pranada, M.A.K., Salas, D.A., Mollee, E. & McDonald, M. (2021) Begonia bangsamoro (Begoniaceae, section Petermannia), a new species from Mindanao Island, the Philippines. Phytotaxa 497 (1): 39–48. https://doi.org/10.11646/phytotaxa.497.1.4
Cudal, M.G., Calimbo, L.G.L., Sumibay Jr., D., Salise, J., Gomez, J., Pagaling, M., Locson, J., Cahayagan, J., Seno, J. & Daculio, J.N. (2021) Diversity of Pteridophytes in Mount Timolan Protected Landscape, Zamboanga del Sur, Philippines. Journal of Tropical Life Science 11: 161–170. https://doi.org/10.11594/jtls.11.02.05
Hall, R. (1996) Reconstructing Cenozoic SE Asia. In: Hall, R. & Blundell, D. (eds.) Tectonic Evolution of Southeast Asia 1. Geological Society of London, London, pp. 153–184.
Hall, R. (1998) The plate tectonics of Cenozoic SE Asia and the distribution of land and sea. In: Hall, R. & Holloway, J.D. (eds.) Biogeography and Evolution of SE Asia. Backhuys Publisher, Leiden, pp. 99–131.
Hamilton, C.W. & Reichard, S.H. (1992) Current practice in the use of subspecies, variety, and forma in the classification of wild plants. Taxon 41: 485–498. https://doi.org/10.2307/1222819
Hughes, M., Moonlight, P.W., Jara-Muñoz, A., Tebbitt, M.C., Wilson, H.P. & Pullan, M. (2015–) Begonia Resource Centre. Available from: http://padme.rbge.org.uk/begonia/ (accessed 10 February 2022)
IUCN Standards and Petitions Subcommittee. (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 15 February 2022)
Klotzsch, J.F. (1854) 2. Marz. Gesammtsitzung der akademie. In: Bericht u?ber die zur Bekanntmachung geeigneten Verhandlungen der Königlich Preussischen Akademie der Wissenschaften zu Berlin. pp. 119–128.
Mazo, K.R., Aribal, L.G., Bustamante, R.A.A. & Ang, Y.P. (2021) Begonia tinuyopensis (sect. Petermannia, Begoniaceae), a new species from Zamboanga Del Norte, Philippines. Phytotaxa 516 (1): 101–107. https://doi.org/10.11646/phytotaxa.516.1.8
Mazo, K.R. & Rubite, R.R. (2022) Two new species of Begonia (section Petermannia, Begoniaceae) from the Zamboanga Peninsula, Philippines, and a redescription of Begonia parvilimba. Phytotaxa 538 (2): 163–171. https://doi.org/10.11646/phytotaxa.538.2.9
Merrill, E.D. (1912) New or noteworthy Plants, IX. The Philippine Journal of Science, section C, Botany 7 (5): 308. Available from: https://www.biodiversitylibrary.org/item/209654 (accessed 10 March 2022)
Merrill, E.D. (1925) Additions to our knowledge of Philippine flora, I. The Philippine Journal of Science 26 (4): 478–481.
Naive, M.A.K., Mazo, K.R.F. & Hughes, M. (2022) Taxonomy of the genus Begonia (Begoniaceae) in Mindanao, Philippines II: Lectotypification of two Begonia section Petermannia species from Zamboanga Peninsula. Kew Bulletin 77: 139–146. https://doi.org/10.1007/s12225-022-10008-5
Rubite, R.R.R. (2013) Begonia section Petermannia of Luzon Island, The Philippines. Philippine Journal of Science 142: 183–197.
Thiers, B.M. (2022) Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 14 February 2022)
Viernes-Enriquez, J. (1990) A legend of the Subanen “Buklog”. Asian Folklore Studies 49: 109–123. https://doi.org/10.2307/1177951
Yumul, G.P., Dimalanta, C.B., Tamayo, R.A., Maury, R.C., Bellon, H., Polve, M., Maglambayan, V.B., Querubin, C.L. & Cotten, J. (2004) Geology of the Zamboanga Peninsula, Mindanao, Philippines: an enigmatic South China continental fragment? Geological Society, London, Special Publications 226: 289–312. https://doi.org/10.1144/GSL.SP.2004.226.01.16