Abstract
A species new to science, Typhonium sagaingense from Sagaing Region, Myanmar, is herein described and illustrated. It is similar to T. albidinervum and T. filiforme but differs in having following characters: trifoliolate leaves, spadix slightly shorter than spathe, fewer yellow staminodes arranged in one whorl and pink appendix. Detailed descriptions, colour plates, illustration, distribution, phenology and ecology of the new species are provided, including a key to all Typhonium occurring in Myanmar.
References
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Hetterscheid, W.L.A, Sookchaloem, D. & Murata, J. (2001) Typhonium (Araceae) of Thailand: New species and a revised Key. Aroideana 24: 33–55.
Hetterscheid, W. L.A. & Galloway, A. (2006) New Typhonium (Araceae) species from Thailand. Aroideana 29: 80–85.
Hetterscheid, W.L.A. & Boyce, P.C. (2000) A reclassification of Sauromatum Schott and new species of Typhonium Schott (Araceae). Aroideana 23: 48–55.
Hetterscheid, W.L.A. & Nguyen, V.D. (2001) Three new species of Typhonium (Araceae) from Vietnam. Aroideana 24: 24–29.
Hu, S.Y. (1968) Araceae. Studies in Flora of Thailand 41. Dansk Botanisk Arkiv Udgivet af Dansk Botanisk Forening. Copenhagen 23: 409–457.
IUCN (2017) Guidelines for Using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee.
Kang, D.H., Kyaw, N.O., Jung, E.K., Shin, J.S. Kim, Y.D. & Ong, H.G. (2018) New records of flowering plants for the flora of Myanmar collected from southern Shan State. Korean Journal of Plant Taxonomy 48: 218–229.
<a href="https://doi.org/10.11110/kjpt.2018.48.3.218">https://doi.org/10.11110/kjpt.2018.48.3.218</a>
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<a href="https://doi.org/10.3897/phytokeys.138.46719">https://doi.org/10.3897/phytokeys.138.46719</a>
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<a href="https://doi.org/10.3417/D-16-00020">https://doi.org/10.3417/D-16-00020</a>
Maw, M.B., Ding, H.-B., Yang, B., Win, P.P., Tan, Y.-H. (2020) Taxonomic studies on Begonia (Begoniaceae) in Myanmar I: three new species and supplementary description of Begonia rheophytica from Northern Myanmar. PhytoKeys 138: 203–217.
<a href="https://doi.org/10.3897/phytokeys.138.38721">https://doi.org/10.3897/phytokeys.138.38721</a>
Murata, J., Sookchaloem, D. & Hetterscheid, W.L.A. (2002) Typhonium watanabei (Araceae), a new species from Thailand. Journal of Japanese Botany 77: 163–166.
Murata, J., Tetsuo, O.T. & Tanaka, N. (2010) New or Noteworthy Plant Collections from Myanmar (4): Typhonium cordifoliumand two new species, T. neogracile and T. praecox (Araceae). Journal of Japanese Botany 85: 1–7.
Nguyen, V.D. & Croat, T.B. (2010) A new species of Typhonium (Araceae) from Vietnam. Novon 20: 195–197.
<a href="https://doi.org/10.3417/2008091">https://doi.org/10.3417/2008091</a>
Nguyen, V.D. (2008) Typhonium stigmatilobatum (Araceae tribe Areae), a new species from Vietnam. Kew Bulletin 63: 491–493.
<a href="https://doi.org/10.1007/s12225-008-9044-8">https://doi.org/10.1007/s12225-008-9044-8</a>
Nicolson, D.H. & Sivadasan, M. (1981) Four frequently confused species of Typhonium Schott (Araceae). Blumea 27: 483–497.
Peng, Y., Yang, C. & Luo, Y. (2020) Blumea htamanthii (Asteraceae), a new species from Myanmar. PhytoKeys 138: 225–232.
<a href="https://doi.org/10.3897/phytokeys.138.38815">https://doi.org/10.3897/phytokeys.138.38815</a>
POWO (2020) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet. Available from: <a href="http://www.plantsoftheworldonline.org/">http://www.plantsoftheworldonline.org/</a> (aaccessed 3 June 2020)
Ridley, H.N. (1904) New Malayan Plants. Journal of the Straits Branch of the Royal Asiatic Society 41: 45.
Schott, H.W. (1829) Für Liebhaber der Botanik. Wiener Zeitschriftfür Kunst, Litteratur, Theater und Mode 3: 732.
Sriboonma, D., Murata J. & Iwatsuki, K. (1994) A revision of Typhonium (Araceae). Journal of the Faculty of Science, University of Tokyo, Section 3 Botany 15: 255–313.
Thammarong, W., Chantaranothai, P. & Pornpongrungrueng, P. (2017). Three new species of Barringtonia (Lecythidaceae) from Myanmar and Vietnam. Phytotaxa 309 (2): 151–158.
<a href="https://doi.org/10.11646/phytotaxa.309.2.6">https://doi.org/10.11646/phytotaxa.309.2.6</a>
Traiperm, P., Fujikawa, K., Chitchak, N., Srisanga, P., Maknoi, C. & Staples, G. (2019) A new species of Argyreia (Convolvulaceae) from Myanmar. Willdenowia 49: 65–70.
<a href="https://doi.org/10.3372/wi.49.49108">https://doi.org/10.3372/wi.49.49108</a>
Van, H.T., Nguyen, P.N., Vu, N.L., Galloway, A. & Luu, H.T. (2017) Typhonium dongnaiense (Araceae), a new species from Vietnam. Annales Botanici Fennici 54: 405–408.
<a href="https://doi.org/10.5735/085.054.0622">https://doi.org/10.5735/085.054.0622</a>
<a href="https://doi.org/10.3897/zookeys.150.2109">https://doi.org/10.3897/zookeys.150.2109</a>
Beentje, H. (2016) The Kew plant glossary: an illustrated dictionary of plant terms. 2nd ed. Royal Botanic Garden, Kew, 184 pp.
Blume, C.L. (1837) Rumphia, sive, Commentationes botanicæ imprimis de plantis Indiæ Orientalis : tum penitus incognitis tum quæ in libris Rheedii, Rumphii, Roxburghii, Wallichii aliorum recensentur scripsit C.L. Blume cognomine Rumphius. Tomus 1. Lugduni Batavorum [Leiden], 204 pp + 70 tab.
Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L.A., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012) Araceae. In: Santisuk, T. & Larsen, K. (Eds.) Flora of Thailand 11. Forest Herbarium, Royal Forest Department, Bangkok, pp. 101–321.
Ding, H.-B., Yang, B., Maw, M.B., Win, P.P. & Tan, Y.-H. (2020) Taxonomic studies on Amomum Roxburgh s.l. (Zingiberaceae) in Myanmar II: one new species and five new records for the flora of Myanmar. PhytoKeys 138: 139–153.
<a href="https://doi.org/10.3897/phytokeys.138.38736">https://doi.org/10.3897/phytokeys.138.38736</a>
Gage, A.T. (1903) The vegetation of the district of Minbu in upper Burma. Records of the Botanical Survey of India 3: 1–376.
Gagnepain, F. (1942) Aracées. In: Lecomte, H. (Ed.) Floré Générale de l’Indo-chine vol. 6. Paris, pp. 1075–1196.
Hetterscheid, W.L.A, Sookchaloem, D. & Murata, J. (2001) Typhonium (Araceae) of Thailand: New species and a revised Key. Aroideana 24: 33–55.
Hetterscheid, W. L.A. & Galloway, A. (2006) New Typhonium (Araceae) species from Thailand. Aroideana 29: 80–85.
Hetterscheid, W.L.A. & Boyce, P.C. (2000) A reclassification of Sauromatum Schott and new species of Typhonium Schott (Araceae). Aroideana 23: 48–55.
Hetterscheid, W.L.A. & Nguyen, V.D. (2001) Three new species of Typhonium (Araceae) from Vietnam. Aroideana 24: 24–29.
Hu, S.Y. (1968) Araceae. Studies in Flora of Thailand 41. Dansk Botanisk Arkiv Udgivet af Dansk Botanisk Forening. Copenhagen 23: 409–457.
IUCN (2017) Guidelines for Using the IUCN Red List Categories and Criteria. Version 13. Prepared by the Standards and Petitions Subcommittee.
Kang, D.H., Kyaw, N.O., Jung, E.K., Shin, J.S. Kim, Y.D. & Ong, H.G. (2018) New records of flowering plants for the flora of Myanmar collected from southern Shan State. Korean Journal of Plant Taxonomy 48: 218–229.
<a href="https://doi.org/10.11110/kjpt.2018.48.3.218">https://doi.org/10.11110/kjpt.2018.48.3.218</a>
King, G. & Prain, D. (1898) Description of some new plants from the North-Eastern Frontiers of India. Journal of the Asiatic Society of Bengal. Part. 2. Natural History 67: 284–305.
Kress, W.J., Filipps, D., Farr, R.A. & Kyi, D.Y.Y. (2003) A checklist of the trees, shrubs, herbs, and climbers of Myanmar. Contributions from the Unites States National Herbarium 45: 1–590.
Li, R., Shine, L., Li, W. & Zhou, S.-S. (2020) A new species of Zingiber (Zingiberaceae) from Natma Taung National Park, Chin State, Myanmar. PhytoKeys 138: 131–137.
<a href="https://doi.org/10.3897/phytokeys.138.46719">https://doi.org/10.3897/phytokeys.138.46719</a>
Linnaeus, C. (1753) Species plantarum. Salvius, Stockholm, 1200 pp.
Loddiges, G. (1820) Botanical Cabinet; Consisting of Coloured Delineations of Plants from all Countries. Vol. IV. London.
Luu, H.T., Van, H.T., Ngo, T.T.D., Nguyen, L.P. & Le, H.P. (2017) Typhonium thatsonense (Araceae), a new species from Vietnam. Novon 25: 438–441.
<a href="https://doi.org/10.3417/D-16-00020">https://doi.org/10.3417/D-16-00020</a>
Maw, M.B., Ding, H.-B., Yang, B., Win, P.P., Tan, Y.-H. (2020) Taxonomic studies on Begonia (Begoniaceae) in Myanmar I: three new species and supplementary description of Begonia rheophytica from Northern Myanmar. PhytoKeys 138: 203–217.
<a href="https://doi.org/10.3897/phytokeys.138.38721">https://doi.org/10.3897/phytokeys.138.38721</a>
Murata, J., Sookchaloem, D. & Hetterscheid, W.L.A. (2002) Typhonium watanabei (Araceae), a new species from Thailand. Journal of Japanese Botany 77: 163–166.
Murata, J., Tetsuo, O.T. & Tanaka, N. (2010) New or Noteworthy Plant Collections from Myanmar (4): Typhonium cordifoliumand two new species, T. neogracile and T. praecox (Araceae). Journal of Japanese Botany 85: 1–7.
Nguyen, V.D. & Croat, T.B. (2010) A new species of Typhonium (Araceae) from Vietnam. Novon 20: 195–197.
<a href="https://doi.org/10.3417/2008091">https://doi.org/10.3417/2008091</a>
Nguyen, V.D. (2008) Typhonium stigmatilobatum (Araceae tribe Areae), a new species from Vietnam. Kew Bulletin 63: 491–493.
<a href="https://doi.org/10.1007/s12225-008-9044-8">https://doi.org/10.1007/s12225-008-9044-8</a>
Nicolson, D.H. & Sivadasan, M. (1981) Four frequently confused species of Typhonium Schott (Araceae). Blumea 27: 483–497.
Peng, Y., Yang, C. & Luo, Y. (2020) Blumea htamanthii (Asteraceae), a new species from Myanmar. PhytoKeys 138: 225–232.
<a href="https://doi.org/10.3897/phytokeys.138.38815">https://doi.org/10.3897/phytokeys.138.38815</a>
POWO (2020) Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet. Available from: <a href="http://www.plantsoftheworldonline.org/">http://www.plantsoftheworldonline.org/</a> (aaccessed 3 June 2020)
Ridley, H.N. (1904) New Malayan Plants. Journal of the Straits Branch of the Royal Asiatic Society 41: 45.
Schott, H.W. (1829) Für Liebhaber der Botanik. Wiener Zeitschriftfür Kunst, Litteratur, Theater und Mode 3: 732.
Sriboonma, D., Murata J. & Iwatsuki, K. (1994) A revision of Typhonium (Araceae). Journal of the Faculty of Science, University of Tokyo, Section 3 Botany 15: 255–313.
Thammarong, W., Chantaranothai, P. & Pornpongrungrueng, P. (2017). Three new species of Barringtonia (Lecythidaceae) from Myanmar and Vietnam. Phytotaxa 309 (2): 151–158.
<a href="https://doi.org/10.11646/phytotaxa.309.2.6">https://doi.org/10.11646/phytotaxa.309.2.6</a>
Traiperm, P., Fujikawa, K., Chitchak, N., Srisanga, P., Maknoi, C. & Staples, G. (2019) A new species of Argyreia (Convolvulaceae) from Myanmar. Willdenowia 49: 65–70.
<a href="https://doi.org/10.3372/wi.49.49108">https://doi.org/10.3372/wi.49.49108</a>
Van, H.T., Nguyen, P.N., Vu, N.L., Galloway, A. & Luu, H.T. (2017) Typhonium dongnaiense (Araceae), a new species from Vietnam. Annales Botanici Fennici 54: 405–408.
<a href="https://doi.org/10.5735/085.054.0622">https://doi.org/10.5735/085.054.0622</a>