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Issue: Vol. 664 No. 1: 3 Sept. 2024
Type: Article
Published: 2024-09-03
DOI: 10.11646/phytotaxa.664.1.5
Page range: 59-67
Abstract views: 369
PDF downloaded: 10

Homalomena brachygyna (Araceae), a new species from Palawan Island, Philippines

Philippine Taxonomic Initiative, Inc, Botanica Building, El Nido, Palawan 5313, Philippines
Biophysical Sciences Department, College of Sciences, Palawan State University, Tiniguiban Heights, Puerto Princesa, Palawan 5300, Philippines
Ta Yote Tan Street, Monywa, Sagaing Region, 02301, Myanmar
Philippine Taxonomic Initiative, Inc, Botanica Building, El Nido, Palawan 5313, Philippines
Aroideae Homalomena Clade Homalomena selaburensis Complex Luzon Malesia Monocots

Abstract

Homalomena brachygyna, a new species from the riparian forest of San Vicente, Palawan, is herein described. This novel addition to the Homalomena species of the Philippines bridges the gap of more than 100 years since the last described species from the country. It is also the second endemic Homalomena species in the island of Palawan. Descriptions, photographs, as well as notes on its habitat and ecology, phenology, and preliminary IUCN conservation assessment are provided.

References

  1. Baharuddin, S. & Boyce, P.C. (2010) Studies on Homalomeneae (Araceae) of Borneo V: a new species and new supergroup record of Homalomena from Sabah, Malaysian Borneo. Tropical Life Sciences Research 21: 89–94.
  2. Beentje, H. (2016) The Kew plant glossary: an illustrated dictionary of plant terms. 2nd ed. Royal Botanic Garden, Kew, 184 pp.
  3. Bogner, J. & Du Nguyen, V. (2008) A New Homalomena species (Araceae) from Vietnam. Willdenowia 38: 527–531.
  4. Boyce, P.C. (2017) Studies on Homalomeneae (Araceae) of Borneo XXI: A new Karst limestone obligated Homalomena species endemic to Niah Caves. Borneo Journal of Resource Science and Technology 7: 93–97.
  5. Boyce, P.C. & Wong, S.Y. (2008) Studies on Homalomeneae (Araceae) of Borneo I: four new species and speculation on informal species groups in Sarawak. Gardens’ Bulletin Singapore 60: 1–29.
  6. Boyce, P.C. & Wong, S.Y. (2014) Studies on Homalomeneae (Araceae) of Borneo XV: A Novel Limestone-Obligated Homalomena from SW Sarawak, Malaysian Borneo. Aroideana 37: 38–43.
  7. Boyce, P.C. & Wong, S.Y. (2015) Compendium Genera Aracearum Malesianum. Aroideana 38: 40–177.
  8. Boyce, P.C. & Wong, S.Y. (2016) Studies on Homalomeneae (Araceae) of Sumatera IV: three new ornamental Homalomena (Chamaecladon clade) species. Willdenowia 46: 253–260. http://dx.doi.org/10.3372/wi.46.46206
  9. Boyce, P.C. & Wong, S.Y. (2017) Studies on Homalomeneae (Araceae) of Peninsular Malaysia VI: Homalomena electra, a new species and the first non-Bornean occurrence of the Hanneae Complex. Aroideana 49 (3): 4–14.
  10. Boyce, P.C. & Wong, S.Y. (2019) Borneo and its disproportionately large rheophytic aroid flora. Gardens’ Bulletin Singapore 71: 497–524. https://doi.org/10.26492/gbs71(suppl.2).2019-24
  11. Boyce, P.C. (2017) Studies on Homalomeneae (Araceae) of Borneo XXI: a new karst limestone obligated Homalomena species endemic to Niah Caves. Borneo Journal of Resource Science and Technology 7: 93–97.
  12. Bustamante, R.A.A.B., Tandang, D.N., Pranada, M.A.K. & Ang, Y.P. (2020) Begonia truncatifolia (Begoniaceae, section Baryandra), a new species from Palawan Island, the Philippines. Phytotaxa 458: 215–222. https://doi.org/10.11646/phytotaxa.458.3.4
  13. CCC-GGGI. (2014a) Forestry. In: Demonstration of the Eco-town Framework Project in San Vicente, Palawan, Philippines. Climate Change Commission–Manila and the Global Green Growth Institute–Seoul. pp. 117–125. [ISBN 979-11-952673-1-6 95300] Available from https://gggi.org/wp-content/uploads/2017/11/2014-GGGI-Philippines-Report-Eco-town-Framework.pdf (accessed 8 January 2024)
  14. CCC-GGGI. (2014b) Landslide hazard. In: Demonstration of the Eco-town Framework Project in San Vicente, Palawan, Philippines. Climate Change Commission–Manila and the Global Green Growth Institute–Seoul. pp. 66–68. [ISBN 979-11-952673-1-6-95300] Available from https://gggi.org/wp-content/uploads/2017/11/2014-GGGI-Philippines-Report-Eco-town-Framework.pdf (accessed 8 January 2024)
  15. Dang, V.S., Truong, B.V., Nguyen, Q.B., Pham, Q.T., Nguyen, V.T., Le, H.S., Nguyen, V.N., Bustamante, R.A.A. & Hein, K.Z. (2023) A new species of Homalomena (Araceae: Homalomeneae) from Con Dao National Park, Vietnam, with lectotypification of Homalomena philippinensis. Taiwania 68: 269–274. https://doi.org/10.6165/tai.2023.68.269
  16. Elmer, A.D.E. (1913) Four Score of New Plants In: Elmer, A.D.E. (Eds.) Leaflets of Philippine Botany. Manila, 1781 pp.
  17. Engler, A. (1905) Beiträge zur Kenntnis der Araceae. X. Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 37: 110–143.
  18. Engler, A. & Krause, K. (1912) Araceae-Philodendroideae-Philodendreae. Das Pflanzenreich: regni vegetablilis conspectus 55: 1–134.
  19. Everett, A.H. (1889) Remarks on the zoo-geographical relationships of the Island of Palawan and some adjacent Islands. Proceedings of the Zoological Society of London 57: 220–228. https://doi.org/10.1111/j.1469-7998.1889.tb06776.x
  20. Galey, M.L., van der Ent, A., Iqbal, M.C.M. & Rajakaruna, N. (2017) Ultramafic geoecology of South and Southeast Asia. Botanical Studies 58: 1–28. https://doi.org/10.1186/s40529-017-0167-9
  21. Garnica-Díaz, C., Berazaín Iturralde, R., Cabrera, B., Calderón-Morales, E., Felipe, F.L., García, R., Hechavarría, J.L.G., Guimarães, A.F., Medina, E., Paul, A.L.D., Rajakaruna, N., Restrepo, C., Siebert, S.J., van den Berg, E., van der Ent, A., Velasquez, G. & Hulshof, C.M. (2022) Global plant ecology of tropical ultramafic ecosystems. Botanical Review 89: 115–157. https://doi.org/10.1007/s12229-022-09278-2
  22. GBIF. (2023) GBIF Occurrence Download. Available from: http://gbif.org (accessed 3 September 2023) https://doi.org/10.15468/dl.exp2sr
  23. Haigh, A.L., Gibernau, M., Maurin, O., Bailey, P., Carlsen, M.M., Hay, A., Leempoel, K., McGinnie, C., Mayo, S., Morris, S., Pérez-Escobar, Sin Yeng, W., Zuluaga, A., Zuntini, A., Baker, W.J. & Forest, F. (2023) Target sequence data shed new light on the infrafamilial classification of Araceae. American Journal of Botany 110: e16117. https://doi.org/10.1002/ajb2.16117
  24. Hassler, M. (2004a) World Plants: Synonymic Checklist and Distribution of the World Flora. Version 14.2. Available from: https://www.worldplants.de (accessed 30 October 2022)
  25. Hassler, M. (2004b) Distribution: Palawan. World Plants: Synonymic Checklist and Distribution of the World Flora. Available from: https://www.worldplants.de/world-plants-complete-list/complete-plant-list#1701322959 (accessed 28 November 2022)
  26. Hay, A. (1999) A revision of Homalomena (Araceae-Homalomeneae) in New Guinea, the Bismarck Archipelago and Solomon Islands. Blumea 44: 41–71.
  27. Hay, A. (2019) Durianology, discovery, and saltation — the evolution of aroids. Gardens’ Bulletin Singapore 71: 257–313. https://doi.org/10.26492/gbs71(suppl.2).2019-20
  28. Heaney, L.R. (1986) Biogeography of mammals in SE Asia: estimates of rates of colonization, extinction, and speciation. Biological Journal of The Linnean Society 28: 127–165.
  29. Herscovitch, C. & Hay, A. (2003) An unusual new species of Homalomena (Araceae) from New Guinea. Gardens’ Bulletin Singapore 54: 31–34.
  30. Hoe, Y.C., Gibernau, M., Maia, A.C.D. & Wong, S.Y. (2016) Flowering mechanisms, pollination strategies and floral scent analyses of syntopically co-flowering Homalomena spp. (Araceae) on Borneo. Journal of Plant Biology 18: 563–576. https://doi.org/10.1111/plb.12431
  31. Hooker, J.D. (1893) Order CLXVI. Aroideae. In: Hooker, J.D. (ed.) The Flora of British India VI. Orchideae to Cyperaceae. L. Reeve & Co., London, pp. 533–534.
  32. Hotta, M. (1981) A new genus of the family Araceae from West Sumatra. Acta Phytotaxonomica et Geobotanica 32: 142–146.
  33. IUCN Standards and Petitions Subcommittee. (2023) The IUCN RedList of Threatened Species. Version 15.1 (July 2022). Available from: https://www.iucnredlist.org (accessed 18 April 2023)
  34. Jack, W. (1820) Descriptions of Malayan plants. Malayan Miscellanies 1: 22–23.
  35. Johnston, I.M. (1949) The Botany of San Jose Island In: Johnston, I.M. (eds.) Sargentia 8: A continuation of the contributions from the Arnold Arboretum of Harvard University. Lancaster Press, Pennsylvania, 281 pp.
  36. Linnaeus, C. (1759) Systema naturae per regna tria naturae :secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Vol. 2. Laurentii Salvii, Holmiae, 559 pp.
  37. Mayo, S.J., Bogner, J. & Boyce, P.C. (1997) The genera of Araceae. Richmond: Royal Botanic Gardens, Kew, 370 pp.
  38. McCabe, R. (1985) Terranes in the central Philippines. The Philippine Geologist 39: 3–23
  39. Merrill, E.D. (1923) An enumeration of Philippine flowering plants. Vol. 1. Bureau of Printing, Manila, pp. 463.
  40. Merrill, E.D. (1925) Additions to our knowledge of the Philippine flora, I. The Philippine Journal of Science 26: 447–496.
  41. Middleton, D.J., Weber, A., Yao, T.L., Sontag, S. & Möller, M. (2013) The current status of the species hitherto assigned to Henckelia (Gesneriaceae). Edinburgh Journal of Botany 70: 385–404. https://doi.org/10.1017/S0960428613000127
  42. MNHN (2023) Specimen P00083578. Muséum national d’Histoire naturelle, Paris (France) Vascular plants (P) Collection. Available from: http://coldb.mnhn.fr/catalognumber/mnhn/p/p00083578 (accessed 28 November 2023)
  43. Ng, K.K., Sofiman, A., O., Boyce, P.C. & Wong, S.Y. (2011) Studies on Homalomeneae (Araceae) of Borneo VIII: Delimitation of additional informal suprageneric taxa for Sundaic Homalomena. Webbia 66: 21–28.
  44. Orrell, T. (2023) NMNH Extant Specimen Records (USNM, US). Version 1.74. National Museum of Natural History, Smithsonian Institution. Occurrence dataset https://doi.org/10.15468/hnhrg3 Available from: https://www.gbif.org/occurrence/1319214400 (accessed 30 November 2023)
  45. Pelser, P.B., Barcelona, J.F. & Nickrent, D.L. (2011) Co’s Digital Flora of the Philippines. Available from: https://www.philippineplants.org (accessed 30 October 2022)
  46. Piper, P.J., Ochoa, J., Lewis, H., Paz, V. & Ronquillo, W.P. (2008) The first evidence for the past presence of the tiger Panthera tigris (L.) on the island of Palawan, Philippines: Extinction in an island population. Palaeogeography, Palaeoclimatology, Palaeoecology 264: 123–127. https://doi.org/10.1016/j.palaeo.2008.04.003
  47. POWO. (2023) Homalomena: Distributions. Plants of the World Online. Available from: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:30057762-2#distributions (accessed 18 April 2023)
  48. RBG Edinburgh. (2024) Spirit Preserved Collection. Royal Botanic Garden Edinburgh website. Available from: https://www.rbge.org.uk/science-and-conservation/herbarium/our-collections/spirit/ (accessed 20 January 2024)
  49. RBG Kew. (2021) Royal Botanic Gardens, Kew - Herbarium Specimens. Occurrence dataset: https://doi.org/10.15468/ly60bx accessed via GBIF.org on 2023-11-30. Available from: https://www.gbif.org/occurrence/912257137 (accessed: 30 November 2023)
  50. Schott, H.W. & Endlicher, S.L. (1832) Meletemata Botanica. Typis Caroli Gerold. Vindobonae, 36 pp.
  51. Sulaiman, B. & Boyce, P.C. (2005) A remarkable new species of Homalomena (Araceae: Homalomeneae) from Peninsular Malaysia. Gardens Bulletin Singapore 57: 7–11.
  52. Thiers, B. (2022 [continuously updated]) Index Herbariorum. The William & Lynda Steere Herbarium-New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/ih (accessed 1 December 2022)
  53. Tung, L.S., Wong, S.Y. & Boyce, P.C. (2010) Studies on Homalomeneae (Araceae) of Borneo VI: Homalomena giamensis, a new species from Sarawak, Malaysian Borneo, with notes on its pollination. Aroideana 33: 201–211.
  54. UNESCO. (2018) Palawan Biosphere Reserve. UNESCO Website. Available from: https://en.unesco.org/biosphere/aspac/palawan (accessed 28 November 2023)
  55. Wong, S.Y., Hoe, Y.C., Tung, L.S. & Boyce, P.C. (2013) Studies on Homalomeneae (Araceae) of Borneo XIII – new species of Homalomena. Aroideana 36: 8–29.
  56. Wong, S.Y., Boyce, P.C. & Wong, K.M. (2017) Studies on Homalomeneae (Araceae) of Borneo XX: Homalomena lambirensis sp. nov. from Sarawak with well-recorded pollination biology. Nordic Journal of Botany 35: 557–562. https://doi.org/10.1111/njb.0158
  57. Wong, S.Y. & Boyce, P.C. (2014) Studies on Homalomeneae (Araceae) of Borneo XVII: two new species of granite-restricted Homalomena from NW Sarawak. Webbia 69: 69–74. http://doi.org/10.1080/00837792.2014.917512
  58. Wong, S.Y. & Boyce, P.C. (2021a) Studies of the Homalomeneae (Araceae) of Peninsular Malaysia VIII: Homalomena joanneae [Chamaecladon Clade], a new locally endemic limestone-obligated species. Webbia 76: 77–81.
  59. Wong, S.Y. & Boyce, P.C. (2021b) Studies on Homalomeneae (Araceae) of Borneo XXVII: A new Homalomena [Chamaecladon Clade] endemic to the Santubong Peninsula. Webbia 76: 83–87.
  60. Wong, S.Y. & Boyce, P.C. (2023) Homalomeneae (Araceae) of Borneo XXVIII – Homalomena bengohensis [Chamaecladon Clade] a new species endemic to the Bengoh Range, Sarawak. Webbia 78: 15–19. https://doi.org/10.36253/jopt-14154
  61. Wong, S.Y., Boyce, P.C. & Hay, A. (2020) Studies on Homalomeneae (Araceae) of Sumatera VI: Two remarkable new species of Homalomena [Chamaecladon Clade]. Webbia 75: 117–122.
  62. Wong, S.Y., Joling, J. & Boyce, P.C. (2021) Studies on the Homalomeneae (Araceae) of Borneo XXV: A remarkable new kerangas-assosiated Homalomena [Chamaecladon Clade] from Sabah. Feddes Repertorium 131: 188–195.
  63. Wong, S.Y., Meerow, A. & Croat, T.B. (2016) Resurrection and new species of the neotropical genus Adelonema (Araceae: Philodendron Clade). Systematic Botany 41: 32–48. https://doi.org/10.1600/036364416X690732