Abstract
Begonia normaaguilariae, a new Philippine Begonia species from the section Baryandra is described and illustrated herewith. It bears a superficial resemblance to B. biliranensis with a repand leaf margin, and obovoid anther shape. However, the new species is unique in reference to its conduplicate stipule, longer capsule pedicel length, and completely glabrous rhizome, petioles, and leaves. Begonia normaaguilariae was only recorded from the limestone forests of Samar Island Natural Park, Samar Island, Philippines. Following the Red List criteria of the IUCN Standards and Petitions Subcommittee, B. normaaguilariae is hereby proposed as Critically Endangered.
References
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<p>Hughes, M., Moonlight, P.W., Jara, A. & Pullan, M. (2015) Begonia Resource Centre. Available from: http://padme.rbge.org.uk/begonia (Accessed 3 March 2022).</p>
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<p>Rubite, R.R. (2012) Delimitation of <em>Begonia</em> L. sections <em>Diploclinium</em> and <em>Baryandra</em> (Begoniaceae) in the Philippines. <em>Asia Life Sciences</em> 21: 363–373.</p>
<p>Rubite, R.R., Brillantes, R.Y., Tandang, D.N., Moran, C.B., Rule, M.G.Q. & Lin, C.W. (2021a) <em>Begonia benitotanii </em>(section <em>Petermannia</em>, Begoniaceae) a new species endemic to the Philippine Island of Bucas Grande. <em>Phytotaxa</em> 513 (3): 257–264. https://doi.org/10.11646/phytotaxa.513.3.5</p>
<p>Rubite, R.R., Justo, C.A.D., Villaseñor, P.C., delos Angeles, M.D., Tandang, D.N. & Lin, C.W. (2021b) Three new species of <em>Begonia </em>(section <em>Baryandra</em>, Begoniaceae) from Samar Island, the Philippines. <em>Phytotaxa </em>516 (3): 263–274. https://doi.org/10.11646/phytotaxa.516.3.5</p>
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<p>Thiers, B. (2021) <em>Index Herbariorum: A global directory of public herbaria and associated staff</em>. New York Botanical Garden’s Virtual Herbarium, New York. Available from:http://sweetgum.nybg.org/science/ih/ (accessed 5 July 2021).</p>
<p>Villanueva, E.L.C., Fernandez, D.A.P., delos Angeles, M.D., Tolentino, P.J.S., Obeña, R.D.R. & Buot, I.E. Jr. (2021) Biodiversity in Forests over Limestone in Paranas, Samar Island Natural Park (SINP), A UNESCO World Heritage Site Nominee. <em>Tropical Natural History</em> 21 (1): 119–145.</p>
<p>Hughes, M., Moonlight, P.W., Jara, A. & Pullan, M. (2015) Begonia Resource Centre. Available from: http://padme.rbge.org.uk/begonia (Accessed 3 March 2022).</p>
<p>IUCN Standards and Petitions Committee (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version<em>14</em>. Prepared by the Standards and Petitions Committee. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 5 August 2021)</p>
<p>Klotzsch, J.F. (1854) Begoniaceen-Gattungen und Arten. <em>Monatsberichte der Königlich preussischen Akademie der Wissenschaften zu Berlin </em>1854: 119–128.</p>
<p>Linnaeus, C. (1753) <em>Species plantarum, exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas</em>, vol. 1. Salvius, Stockholm, 1200 pp. https://doi.org/10.5962/bhl.title.59734</p>
<p>Madulid, D.A. (2000) <em>A Review and Assessment of the Floristic Knowledge of Samar Island: Based on Literature, PNH Records and Current Knowledge</em>. Samar Island Biodiversity Study (SAMBIO) Resources, Environment and Economics Center for Studies, Inc. (REECS)</p>
<p>Merrill, E.D. (1915) New or noteworthy Philippine plants. <em>The Philippine Journal of Science. </em>46 pp.</p>
<p>Obeña, R.D.R., Tolentino, P.J.S., Villanueva, E.L.C., Fernandez, D.A.P., delos Angeles, M.D. & Buot, I.E. Jr. (2021) Flora and Fauna Inventory of Limestone Forests in Taft, Eastern Samar, Philippines. <em>The Thailand Natural History Museum Journal </em>15 (1): 1–20.</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: http://www.philippineplants.org (accessed 30 August 2021).</p>
<p>Pinarok, N.A.A., De Guzman, G.Q. & Alejandro, G.J. (2015) Inventory and ethnobotanical study of medicinal plants at Samar Island Natural Park, Philippines. <em>International Journal Pure & Applied Bioscience [serial on the internet]</em> 3 (4): 101–108.</p>
<p>Republic Act No. 7586. (1992) <em>National Integrated Protected Areas System Act of 1992</em>. Available from: https://www.officialgazette/gov.ph/1992/06/01/republic-act-no-7586/ (accessed 6 July 2021).</p>
<p>Rubite, R.R. (2012) Delimitation of <em>Begonia</em> L. sections <em>Diploclinium</em> and <em>Baryandra</em> (Begoniaceae) in the Philippines. <em>Asia Life Sciences</em> 21: 363–373.</p>
<p>Rubite, R.R., Brillantes, R.Y., Tandang, D.N., Moran, C.B., Rule, M.G.Q. & Lin, C.W. (2021a) <em>Begonia benitotanii </em>(section <em>Petermannia</em>, Begoniaceae) a new species endemic to the Philippine Island of Bucas Grande. <em>Phytotaxa</em> 513 (3): 257–264. https://doi.org/10.11646/phytotaxa.513.3.5</p>
<p>Rubite, R.R., Justo, C.A.D., Villaseñor, P.C., delos Angeles, M.D., Tandang, D.N. & Lin, C.W. (2021b) Three new species of <em>Begonia </em>(section <em>Baryandra</em>, Begoniaceae) from Samar Island, the Philippines. <em>Phytotaxa </em>516 (3): 263–274. https://doi.org/10.11646/phytotaxa.516.3.5</p>
<p>Tebbitt, M.C. (2005) <em>Begonias: Cultivation, Identification, and Natural History</em>. Timber Press, Oregon.</p>
<p>Thiers, B. (2021) <em>Index Herbariorum: A global directory of public herbaria and associated staff</em>. New York Botanical Garden’s Virtual Herbarium, New York. Available from:http://sweetgum.nybg.org/science/ih/ (accessed 5 July 2021).</p>
<p>Villanueva, E.L.C., Fernandez, D.A.P., delos Angeles, M.D., Tolentino, P.J.S., Obeña, R.D.R. & Buot, I.E. Jr. (2021) Biodiversity in Forests over Limestone in Paranas, Samar Island Natural Park (SINP), A UNESCO World Heritage Site Nominee. <em>Tropical Natural History</em> 21 (1): 119–145.</p>