Abstract
Vaccinium carmesinum is described as a new species of Ericaceae from Mt. Tago Range, Mindanao Island, Philippines. It is similar to V. platyphyllum Merrill and V. luzoniense S.Vidal but is distinct from the former by longer and wider leaves, longer racemes, longer bracts, glabrous corollas, and glabrescent fruits, and from the latter by longer petioles, leaf glands distributed along the blade margin, glabrous rachis, and lanate filaments. Vaccinium carmesinum bears the widest leaves among Philippine Vaccinium. Its discovery increases the number of Vaccinium species recognized in the Philippines to 37.
References
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<p>Copeland, H.F. (1930) Philippine Ericaceae, II: the species of <em>Vaccinium</em>. <em>Philippine Journal of Science</em> 42: 537–607.</p>
<p>Coritico, F.P., Amoroso, V.B., Acma, F.M., Cariño, Y.L.L. & Fritsch, P.W. (2020a) Ferns and lycophytes of Mt. Tago Range, Bukidnon, Southern Philippines: species richness, distribution, and conservation status. <em>Philippine Journal of Science</em> 149 (3-a): 773–790.</p>
<p>Coritico, F.P., Lagunday, N.E., Galindon, J.M.M., Tandang, D.N. & Amoroso, V.B. (2020b) Diversity of trees and structure of forest habitat types in Mt. Tago Range, Mindanao, Philippines. <em>Philippine Journal of Systematic Biology</em> 14 (3): 1–11. https://doi.org/10.26757/pjsb2020c14006</p>
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<p>Fritsch, P.W., Amoroso, V.B., Coritico, F.P. & Penneys, D.S. (2020) <em>Vaccinium hamiguitanense</em> (Ericaceae), a new species from the Philippines. <em>Journal of the Botanical Research Institute of Texas</em> 14 (2): 281–287. https://doi.org/10.17348/jbrit.v14.i2.1009</p>
<p>Gronemeyer, T., Coritico, F., Micheler, M., Marwinski, D., Acil, R. & Amoroso, V.B. (2011a) <em>Nepenthes ceciliae</em>, a new pitcher plant species from Mt. Kiamo, Mindanao. <em>New Nepenthes</em> 1: 413–423.</p>
<p>Gronemeyer, T., McPherson, S., Coritico, F., Micheler, M., Marwinski, D. & Amoroso, V.B. (2011b) <em>Nepenthes pulchra</em>, a new pitcher plant species from Mt. Kiamo, Mindanao. <em>New</em> <em>Nepenthes </em>1: 425–439.</p>
<p>Gronemeyer, T., Coritico, F., Wistuba, A., Marwinski, D., Gieray, T., Micheler, M., Mey, F.M. & Amoroso, V.B. (2014) Four new species of <em>Nepenthes</em> L. (Nepenthaceae) from the central mountains of Mindanao, Philippines. <em>Plants</em> 3: 284–303. https://doi.org/10.3390/plants3020284</p>
<p>IUCN Standards and Petitions Committee. (2019) <em>Guidelines for using the IUCN Red List Categories and Criteria. Version 14</em>. Prepared by the Standards and Petitions Committee. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed: 14 September 2021)</p>
<p>Kron, K.A., Powell, E.A. & Luteyn, J.L. (2002) Phylogenetic relationships within the blueberry tribe (Vaccinieae, Ericaceae) based on sequence data from <em>matK</em> and nuclear ribosomal ITS regions, with comments on the placement of <em>Satyria</em>. <em>American Journal of Botany</em> 89: 327–336. https://doi.org/10.3732/ajb.89.2.327</p>
<p>Lagunday, N.E., Acma, F.M., Cabana, V.G., Sabas, N.M. & Amoroso, V.B. (2017) Two new <em>Nepenthes </em>species from the unexplored mountains of central Mindanao, Philippines. <em>Philippine Journal of Science</em> 146 (2): 159–165.</p>
<p>Lagunday, N.E. & Amoroso, V.B. (2019) <em>Nepenthes cabanae</em> (Caryophyllales, Nepenthaceae), a new species of pitcher plant from Central Mindanao, Philippines. <em>Philippine Journal of Systematic Biology</em> 13 (1): 39–45. https://doi.org/10.26757/pjsb2019a13005</p>
<p>Linnaeus, C. (1753) <em>Species Plantarum</em>, Vol. 1. Salvius, Stockholm, 1200 pp.</p>
<p>Merrill, E.D. (1917) New Philippine shrubs and trees. <em>Philippine Journal of Science</em>, section C, Botany, 12 (1): 1–391.</p>
<p>Merrill, E.D. (1919) New or noteworthy Philippine plants, XV. <em>Philippine Journal of Science</em> 14 (4): 1–694.</p>
<p>Merrill, E.D. (1925) New species of Philippine plants collected by A. Loher. <em>Philippine Journal of Science</em> 27 (1): 1–59.</p>
<p>Nakai, T. & Koidzumi, G. (1927) <em>Trees and shrubs indigenous in Japan proper</em> (revised Ed.), Vol. 1. Seibido Shoten, Tokyo, 714 pp.</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 15 September 2021)</p>
<p>Salares, V.B., Obico, J.J.A., Ormerod, P., Barcelona, J.F. & Pelser, P.B. (2018) Taxonomic novelties from Cebu: a new species of <em>Vaccinium</em> (Ericaceae) and a new record of <em>Phaius</em> (Orchidaceae) for the Philippines. <em>Phytotaxa</em> 360 (3): 255–262. https://doi.org/10.11646/phytotaxa.360.3.5</p>
<p>Schlechter, R. (1919) Die Ericaceen von Deutsch-Neu-Guinea. <em>Botanische Jahrbücher </em>55: 137–194.</p>
<p>Sleumer, H. (1966–1967) Ericaceae: <em>In</em>: van Steenis, C.G.G.J. (Ed.) <em>Flora Malesiana.</em> Ser. 1, Vol. 6, Parts 4, 5. Wolters-Noordhoff, Groningen, pp. 469–914.</p>
<p>Tamayo, M.N., Bustamante, R.A.A. & Fritsch, P.W. (2021) <em>Vaccinium exiguum</em> (Ericaceae, Vaccinieae), a new species from the ultramafic summit of Mt. Victoria, Palawan Island, Philippines. <em>PhytoKeys</em> 179: 145–154. https://doi.org/10.3897/phytokeys.179.68323</p>
<p>Vander Kloet, S.P. (1996) Floristics of Philippine <em>Vaccinium</em> (Ericaceae). Proceedings of the first international symposium on floristic characteristics and diversity of East Asian plants. China Higher Education Press, Beijing, pp. 114–119.</p>
<p>Vander Kloet, S.P. & Dickinson, T.A. (2009) A subgeneric classification of the genus <em>Vaccinium</em> and the metamorphosis of <em>V</em>. section <em>Bracteata</em> Nakai: more terrestrial and less epiphytic in habit, more continental and less insular in distribution. <em>Journal of Plant Research</em> 122 (3): 253–268. https://doi.org/10.1007/s10265-008-0211-7</p>
<p>Vidal, S. (1886) <em>Revision de plantas vasculares Filipinas</em>, Fam. 67 - Vacciniaceas. Establecimiento Tipo-Litográfico de M. Perez, Hijo, Binondo, Manila. pp. 1–455.</p>
<p>Argent, G. (2008) A checklist of Philippine Ericaceae. <em>Philippine Journal of Systematic Biology</em> 2 (1): 40–46.</p>
<p>Argent, G. (2014) <em>Vaccinium utteridgei</em> (Ericaceae), a new species (sect<em>. Bracteata</em>) from Indonesian New Guinea. <em>Edinburgh Journal of Botany</em> 71: 189–192. https://doi.org/10.1017/S0960428614000080</p>
<p>Argent, G. (2018) <em>Rigiolepis</em> and <em>Vaccinium</em> (Ericaceae) in Borneo. <em>Edinburgh Journal of Botany</em> 76: 55–172. https://doi.org/10.1017/S0960428618000276</p>
<p>Bukidnon Watershed Protection and Development Council (BWPDC). (2012) Sustainable watershed management as a response to land and water problems, Bukidnon. Available from: https://essc.org.ph/content/archives/tag/bukidnon-watershed-protection-and-development-council/ (accessed 13 October 2021)</p>
<p>Co, L.L., Madulid, D. & Argent, G. (2002) A new species of <em>Vaccinium</em> (Ericaceae) from the Philippines. <em>Edinburgh Journal of Botany</em> 59 (3): 373–376. https://doi.org/10.1017/S0960428602000227</p>
<p>Copeland, H.F. (1930) Philippine Ericaceae, II: the species of <em>Vaccinium</em>. <em>Philippine Journal of Science</em> 42: 537–607.</p>
<p>Coritico, F.P., Amoroso, V.B., Acma, F.M., Cariño, Y.L.L. & Fritsch, P.W. (2020a) Ferns and lycophytes of Mt. Tago Range, Bukidnon, Southern Philippines: species richness, distribution, and conservation status. <em>Philippine Journal of Science</em> 149 (3-a): 773–790.</p>
<p>Coritico, F.P., Lagunday, N.E., Galindon, J.M.M., Tandang, D.N. & Amoroso, V.B. (2020b) Diversity of trees and structure of forest habitat types in Mt. Tago Range, Mindanao, Philippines. <em>Philippine Journal of Systematic Biology</em> 14 (3): 1–11. https://doi.org/10.26757/pjsb2020c14006</p>
<p>Cronquist, A. (1978) Once again, what is a species? <em>In</em>: Knutson, L.V. (Ed.) <em>Biosystematics in Agriculture</em>. Allenheld Osmin, Montclair, New Jersey, pp. 3–20.</p>
<p>Fritsch, P.W., Amoroso, V.B., Coritico, F.P. & Penneys, D.S. (2020) <em>Vaccinium hamiguitanense</em> (Ericaceae), a new species from the Philippines. <em>Journal of the Botanical Research Institute of Texas</em> 14 (2): 281–287. https://doi.org/10.17348/jbrit.v14.i2.1009</p>
<p>Gronemeyer, T., Coritico, F., Micheler, M., Marwinski, D., Acil, R. & Amoroso, V.B. (2011a) <em>Nepenthes ceciliae</em>, a new pitcher plant species from Mt. Kiamo, Mindanao. <em>New Nepenthes</em> 1: 413–423.</p>
<p>Gronemeyer, T., McPherson, S., Coritico, F., Micheler, M., Marwinski, D. & Amoroso, V.B. (2011b) <em>Nepenthes pulchra</em>, a new pitcher plant species from Mt. Kiamo, Mindanao. <em>New</em> <em>Nepenthes </em>1: 425–439.</p>
<p>Gronemeyer, T., Coritico, F., Wistuba, A., Marwinski, D., Gieray, T., Micheler, M., Mey, F.M. & Amoroso, V.B. (2014) Four new species of <em>Nepenthes</em> L. (Nepenthaceae) from the central mountains of Mindanao, Philippines. <em>Plants</em> 3: 284–303. https://doi.org/10.3390/plants3020284</p>
<p>IUCN Standards and Petitions Committee. (2019) <em>Guidelines for using the IUCN Red List Categories and Criteria. Version 14</em>. Prepared by the Standards and Petitions Committee. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed: 14 September 2021)</p>
<p>Kron, K.A., Powell, E.A. & Luteyn, J.L. (2002) Phylogenetic relationships within the blueberry tribe (Vaccinieae, Ericaceae) based on sequence data from <em>matK</em> and nuclear ribosomal ITS regions, with comments on the placement of <em>Satyria</em>. <em>American Journal of Botany</em> 89: 327–336. https://doi.org/10.3732/ajb.89.2.327</p>
<p>Lagunday, N.E., Acma, F.M., Cabana, V.G., Sabas, N.M. & Amoroso, V.B. (2017) Two new <em>Nepenthes </em>species from the unexplored mountains of central Mindanao, Philippines. <em>Philippine Journal of Science</em> 146 (2): 159–165.</p>
<p>Lagunday, N.E. & Amoroso, V.B. (2019) <em>Nepenthes cabanae</em> (Caryophyllales, Nepenthaceae), a new species of pitcher plant from Central Mindanao, Philippines. <em>Philippine Journal of Systematic Biology</em> 13 (1): 39–45. https://doi.org/10.26757/pjsb2019a13005</p>
<p>Linnaeus, C. (1753) <em>Species Plantarum</em>, Vol. 1. Salvius, Stockholm, 1200 pp.</p>
<p>Merrill, E.D. (1917) New Philippine shrubs and trees. <em>Philippine Journal of Science</em>, section C, Botany, 12 (1): 1–391.</p>
<p>Merrill, E.D. (1919) New or noteworthy Philippine plants, XV. <em>Philippine Journal of Science</em> 14 (4): 1–694.</p>
<p>Merrill, E.D. (1925) New species of Philippine plants collected by A. Loher. <em>Philippine Journal of Science</em> 27 (1): 1–59.</p>
<p>Nakai, T. & Koidzumi, G. (1927) <em>Trees and shrubs indigenous in Japan proper</em> (revised Ed.), Vol. 1. Seibido Shoten, Tokyo, 714 pp.</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 15 September 2021)</p>
<p>Salares, V.B., Obico, J.J.A., Ormerod, P., Barcelona, J.F. & Pelser, P.B. (2018) Taxonomic novelties from Cebu: a new species of <em>Vaccinium</em> (Ericaceae) and a new record of <em>Phaius</em> (Orchidaceae) for the Philippines. <em>Phytotaxa</em> 360 (3): 255–262. https://doi.org/10.11646/phytotaxa.360.3.5</p>
<p>Schlechter, R. (1919) Die Ericaceen von Deutsch-Neu-Guinea. <em>Botanische Jahrbücher </em>55: 137–194.</p>
<p>Sleumer, H. (1966–1967) Ericaceae: <em>In</em>: van Steenis, C.G.G.J. (Ed.) <em>Flora Malesiana.</em> Ser. 1, Vol. 6, Parts 4, 5. Wolters-Noordhoff, Groningen, pp. 469–914.</p>
<p>Tamayo, M.N., Bustamante, R.A.A. & Fritsch, P.W. (2021) <em>Vaccinium exiguum</em> (Ericaceae, Vaccinieae), a new species from the ultramafic summit of Mt. Victoria, Palawan Island, Philippines. <em>PhytoKeys</em> 179: 145–154. https://doi.org/10.3897/phytokeys.179.68323</p>
<p>Vander Kloet, S.P. (1996) Floristics of Philippine <em>Vaccinium</em> (Ericaceae). Proceedings of the first international symposium on floristic characteristics and diversity of East Asian plants. China Higher Education Press, Beijing, pp. 114–119.</p>
<p>Vander Kloet, S.P. & Dickinson, T.A. (2009) A subgeneric classification of the genus <em>Vaccinium</em> and the metamorphosis of <em>V</em>. section <em>Bracteata</em> Nakai: more terrestrial and less epiphytic in habit, more continental and less insular in distribution. <em>Journal of Plant Research</em> 122 (3): 253–268. https://doi.org/10.1007/s10265-008-0211-7</p>
<p>Vidal, S. (1886) <em>Revision de plantas vasculares Filipinas</em>, Fam. 67 - Vacciniaceas. Establecimiento Tipo-Litográfico de M. Perez, Hijo, Binondo, Manila. pp. 1–455.</p>