Abstract
Begonia tinuyopensis is described and illustrated as a new species from Zamboanga del Norte, Philippines. This new species resembles B. mearnsii by having a decumbent stem, scattered hairs over the entire plant, terminal inflorescence bearing 2 staminate tepals and 5 pistillate tepals. However, Begonia tinuyopensis is distinct by having sparse pilose (vs. matted with long brown hairs) stems, ovate (vs. suborbicular to subreniform) leaves and glabrous (vs. densely pubescent) ovary. We assign B. tinuyopensis as Endangered (EN) following IUCN Red List Criteria.
References
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<p>Hughes, M. & Coyle, C. (2009) <em>Begonia </em>section <em>Petermannia</em> (Begoniaceae) on Palawan (Philippines), including two new species. <em>Edinburgh Journal of Botany</em> 66: 205–211. https://doi.org/10.1017/S0960428609005307</p>
<p>Hughes, M., Moonlight, P., Jara, A., Tebbitt, M., Wilson, H. & Pullan, M. (2015 onwards) <em>Begonia Resource Centre Royal Botanic Garden Edinburgh</em>. Available from: https://padme.rbge.org.uk/begonia (accessed 22 March 2021)</p>
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<p>Lin, C.-W., Chung, S.-W. & Peng, C.-I (2014) Three new species of <em>Begonia</em> (sect. <em>Petermannia</em>, Begoniaceae) from Sarawak, Borneo. <em>Phytotaxa </em>191 (1): 129–140. https://doi.org/10.11646/phytotaxa.191.1.8</p>
<p>Liu, S.-H., Tseng, Y.-H., Zure, D., Rubite, R.R., Balongcod, T.D., Peng, C.-I. & Chung, K.-F. (2019) <em>Begonia balangcodiae</em> <em>sp. nov.</em> from northern Luzon, the Philippines and its natural hybrid with <em>B. crispipila, B. × kapangan nothosp. nov. Phytotaxa </em>407 (1): 5–21. https://doi.org/10.11646/phytotaxa.407.1.3</p>
<p>Linnaeus, C. (1753) Species Plantarum: <em>exhibentes plantas rite cognitas ad genera relatas, cum diferentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. </em>Vol. 1. Berlin. pp. 320. https://doi.org/10.5962/bhl.title.59734</p>
<p>Linnaeus, C. (1753) Species Plantarum. Vol. 2. <em>Laurentius Salvius</em>, Stockholm, pp. 561–1200.</p>
<p>Merrill, E.D. (1908) New or noteworthy Philippine plants VI. <em>The Philippine Journal of Science</em> 3C: 220.</p>
<p>Merrill, E.D. (1911) The Philippine species of <em>Begonia</em>. <em>The Philippine Journal of Science</em>, section C, Botany 6 (6): 369–399. Available from: https://www.biodiversitylibrary.org/item/1116. (accessed 4 April 2021)</p>
<p>Merrill, E.D. (1912) Begoniaceae. <em>The Philippine Journal of Science</em>, section C, Botany 7 (6): 308–312. Available from: https://www.biodiversitylibrary.org/item/1117 (accessed 4 April 2021)</p>
<p>Merrill, ED. (1922) New or noteworthy Philippine plants XVII. <em>The Philippine Journal of Science</em> 20: 407.</p>
<p> Merrill, E.D. (1925) Additions to our knowledge of Philippine flora, I. <em>The Philippine Journal of Science</em> 26 (4): 478–479. Available from: http://name.umdl.umich.edu/act3868.0026.001. (accessed 4 April 2021)</p>
<p>Moonlight, P.W., Ardi, W.H., Padilla, L.A., Chung, K.-F., Fuller, D., Girmansyah, D., Hollands, R., Jara-Muñoz, A., Kiew, R., Leong,W.C., Liu, Y., Mahardika, A., Marasinghe, L.D.K., O’Connor, M., Peng, C.-I., Pérez, Á.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 <em>Begonia </em>(Begoniaceae). <em>Taxon </em>67 (2): 267–323. https://doi.org/10.12705/672.3</p>
<p>Rule, M.G.Q., Ang, Y.P., Rubite, R.R., Docot, R.V.A., Bustamante, R.A.A., Robinson, A.S. (2020)<em> Begonia makuruyot</em> (<em>Begoniaceae</em>, section <em>Baryandra</em>), a new species from Surigao del Norte Province, Philippines. <em>Phytotaxa </em>470 (3): 226–234. https://doi.org/10.11646/phytotaxa.470.3.2</p>
<p>Pelser, P.B., Barcelona, J.F. & Nickrent, D.L. (Eds.) (2011 onwards) <em>Co’s Digital Flora of the Philippines</em>. Available from: www.philippineplants.org (accessed 6 January 2021)</p>
<p>Peng, C.-I, Rubite, R.R. & Lin, C.-W. (2017) <em>Begonia polyclada </em>(sect. <em>Petermannia</em>, Begoniaceae), a gracile new species from Luzon, Philippines. <em>Phytotaxa </em>296 (1): 93–97. https://doi.org/10.11646/phytotaxa.296.1.8</p>
<p>Reinwardt, C. (1851) Nederlandsch Kruidkundig Archief. <em>Verslangen en Mededelingen der Nederlandsche Botanische Vereeniging</em> 2 (2): 118–119.</p>
<p>Rubite, R.R. (2013) Begonia section <em>Petermannia </em>of Luzon Island, The Philippines. <em>Philippine Journal of Science </em>142: 183–197.</p>
<p>Tebbitt, M.C. (2005) <em>Begonias: cultivation, identification and natural history.</em> Timber Press, Portland, 336 pp.</p>
<p>Ang, Y.P., Tandang, D.N., Agcaoili, J.M.M. & Bustamante, R.A.A. (2020b) <em>Begonia cabanillasii</em> (section <em>Baryandra</em>, Begoniaceae), a new species from El Nido, Palawan, the Philippines. <em>Phytotaxa</em> 453 (3): 244–254. https://doi.org/10.11646/phytotaxa.453.3.6</p>
<p>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.<em> In: </em>Smith, V. & Penev, L. (Eds.) e-Infrastructures for data publishing in biodiversity science. <em>ZooKeys</em> 150: 117–126. (Version BETA). https://doi.org/10.3897/zookeys.150.2109</p>
<p>Blume, C.L. (1825) <em>Spathoglottis plicata</em>. <em>In:</em> <em>Bijdragen tot de flora van Nederlandsch Indie</em>. pp. 401<em>. </em>https://doi.org/10.5962/bhl.title.395</p>
<p>Buenavista, P.D., Ang, Y.P., Pranada, M.A.K., Salas, D.S., Mollee, E. & Mcdonald, M. (2021) <em>Begonia bangsamoro</em> (Begoniaceae, section <em>Petermannia</em>), a new species from Mindanao Island, the Philippines. <em>Phytotaxa </em>497 (1): 39–48. https://doi.org/10.11646/phytotaxa.497.1.4</p>
<p>Bustamante, R.A.A., Tandang, D.N., Pranada, M.A.K. & Ang, Y.P. (2020) <em>Begonia truncatifolia</em> (Begoniaceae, section <em>Baryandra</em>), a new species from Palawan Island, the Philippines. <em>Phytotaxa </em>458 (3): 215–222. https://doi.org/10.11646/phytotaxa.458.3.4</p>
<p>de Candolle, A. (1859) Mémoire Sur La Famille Des Bégoniacées. <em>Annales des Sciences Naturelles; Botanique</em> 11: 122–134. Available from: https://www.biodiversitylibrary.org/item/129892 (accessed 26 May 2021)</p>
<p>Hughes, M. & Coyle, C. (2009) <em>Begonia </em>section <em>Petermannia</em> (Begoniaceae) on Palawan (Philippines), including two new species. <em>Edinburgh Journal of Botany</em> 66: 205–211. https://doi.org/10.1017/S0960428609005307</p>
<p>Hughes, M., Moonlight, P., Jara, A., Tebbitt, M., Wilson, H. & Pullan, M. (2015 onwards) <em>Begonia Resource Centre Royal Botanic Garden Edinburgh</em>. Available from: https://padme.rbge.org.uk/begonia (accessed 22 March 2021)</p>
<p>IUCN Standards and Petitions Committee (2019) guidelines for Using the IUCN Red list Categories and Criteria. Version 14. Prepared by the <em>Standards and Petitions Committee.</em> Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 10 March 2021)</p>
<p>Klotzsch, J.F. (1854) Begoniaceen-Gattungen und Arten. <em>Abhandlungen der Königlichen Akademie der Wissenschaften zu Berlin</em> 194– 243. Available from: https://www.biodiversitylibrary.org/item/92694 (accessed 29 May 2021)</p>
<p>Lin, C.-W., Chung, S.-W. & Peng, C.-I (2014) Three new species of <em>Begonia</em> (sect. <em>Petermannia</em>, Begoniaceae) from Sarawak, Borneo. <em>Phytotaxa </em>191 (1): 129–140. https://doi.org/10.11646/phytotaxa.191.1.8</p>
<p>Liu, S.-H., Tseng, Y.-H., Zure, D., Rubite, R.R., Balongcod, T.D., Peng, C.-I. & Chung, K.-F. (2019) <em>Begonia balangcodiae</em> <em>sp. nov.</em> from northern Luzon, the Philippines and its natural hybrid with <em>B. crispipila, B. × kapangan nothosp. nov. Phytotaxa </em>407 (1): 5–21. https://doi.org/10.11646/phytotaxa.407.1.3</p>
<p>Linnaeus, C. (1753) Species Plantarum: <em>exhibentes plantas rite cognitas ad genera relatas, cum diferentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas. </em>Vol. 1. Berlin. pp. 320. https://doi.org/10.5962/bhl.title.59734</p>
<p>Linnaeus, C. (1753) Species Plantarum. Vol. 2. <em>Laurentius Salvius</em>, Stockholm, pp. 561–1200.</p>
<p>Merrill, E.D. (1908) New or noteworthy Philippine plants VI. <em>The Philippine Journal of Science</em> 3C: 220.</p>
<p>Merrill, E.D. (1911) The Philippine species of <em>Begonia</em>. <em>The Philippine Journal of Science</em>, section C, Botany 6 (6): 369–399. Available from: https://www.biodiversitylibrary.org/item/1116. (accessed 4 April 2021)</p>
<p>Merrill, E.D. (1912) Begoniaceae. <em>The Philippine Journal of Science</em>, section C, Botany 7 (6): 308–312. Available from: https://www.biodiversitylibrary.org/item/1117 (accessed 4 April 2021)</p>
<p>Merrill, ED. (1922) New or noteworthy Philippine plants XVII. <em>The Philippine Journal of Science</em> 20: 407.</p>
<p> Merrill, E.D. (1925) Additions to our knowledge of Philippine flora, I. <em>The Philippine Journal of Science</em> 26 (4): 478–479. Available from: http://name.umdl.umich.edu/act3868.0026.001. (accessed 4 April 2021)</p>
<p>Moonlight, P.W., Ardi, W.H., Padilla, L.A., Chung, K.-F., Fuller, D., Girmansyah, D., Hollands, R., Jara-Muñoz, A., Kiew, R., Leong,W.C., Liu, Y., Mahardika, A., Marasinghe, L.D.K., O’Connor, M., Peng, C.-I., Pérez, Á.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 <em>Begonia </em>(Begoniaceae). <em>Taxon </em>67 (2): 267–323. https://doi.org/10.12705/672.3</p>
<p>Rule, M.G.Q., Ang, Y.P., Rubite, R.R., Docot, R.V.A., Bustamante, R.A.A., Robinson, A.S. (2020)<em> Begonia makuruyot</em> (<em>Begoniaceae</em>, section <em>Baryandra</em>), a new species from Surigao del Norte Province, Philippines. <em>Phytotaxa </em>470 (3): 226–234. https://doi.org/10.11646/phytotaxa.470.3.2</p>
<p>Pelser, P.B., Barcelona, J.F. & Nickrent, D.L. (Eds.) (2011 onwards) <em>Co’s Digital Flora of the Philippines</em>. Available from: www.philippineplants.org (accessed 6 January 2021)</p>
<p>Peng, C.-I, Rubite, R.R. & Lin, C.-W. (2017) <em>Begonia polyclada </em>(sect. <em>Petermannia</em>, Begoniaceae), a gracile new species from Luzon, Philippines. <em>Phytotaxa </em>296 (1): 93–97. https://doi.org/10.11646/phytotaxa.296.1.8</p>
<p>Reinwardt, C. (1851) Nederlandsch Kruidkundig Archief. <em>Verslangen en Mededelingen der Nederlandsche Botanische Vereeniging</em> 2 (2): 118–119.</p>
<p>Rubite, R.R. (2013) Begonia section <em>Petermannia </em>of Luzon Island, The Philippines. <em>Philippine Journal of Science </em>142: 183–197.</p>
<p>Tebbitt, M.C. (2005) <em>Begonias: cultivation, identification and natural history.</em> Timber Press, Portland, 336 pp.</p>