Skip to main content Skip to main navigation menu Skip to site footer
Responsive image
Issue: Vol. 633 No. 2: 5 Jan. 2024
Type: Article
Published: 2024-01-05
DOI: 10.11646/phytotaxa.633.2.7
Page range: 163-170
Abstract views: 182
PDF downloaded: 7

Two new species of Typhonium (Araceae) with bicolored staminodes from Central Vietnam

Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam.
Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam.
Southern Institute of Ecology, Institute of Applied Materials Science, Vietnam Academy of Science and Technology, No. 1D, TL 29 Street, Thanh Loc Ward, District 12, Ho Chi Minh City, Vietnam.
Management Board of Cu Lao Cham Marine Protected Area, 3 Nguyen Hue, Hoi An City, Quang Nam Province, Vietnam.
Department of Ecology and Evolutionary Biology, University of Science, Vietnam National University HCMC, 227 Nguyen Van Cu Street, District 5, Ho Chi Minh City, Vietnam. Vietnam National University - HCMC, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam.
Cu Lao Cham Island endemic Hai Van Pass Typhonium bicolor Typhonium culaochamense Monocots

Abstract

Typhonium bicolor and T. culaochamense are described as new species endemic to Central Vietnam. They have bicolored staminodes (apex and base of different colors) which are formerly reported for six species, namely T. bachmaense, T. blumei, T. filiforme, T. flagelliforme, T. kbangense and T. ramosum. The first species is characterized by its oblong-elliptic and thick leaflets, yellowish and elliptic flattened anthers with lateral dehiscence, pink 6–7 mm long staminodes with a pale purple verrucose surface and a bright yellow and obtuse or truncate apex, oblanceolate ovaries and stipitate spadix appendix, and the second by its elongate and cylindrical tuber, variable leaf blades, longer spathe tube, basically externally green-brownish spathe limb, 3–5 rows of pistils, apically brownish dotted ovaries, disciform stigmas and recurved staminodes with a yellow apex. The ecology, distribution and assessment of conservation status of the two new taxa as well as a key to all known Typhonium species in Vietnam are provided.

 

References

  1. Blume, C.L.v. (1837) Rumphia, sive Commentationes Botanicae Imprimis de Plantis Indiae Orientalis, Vol. 1. Lugduni Batavorum, Leiden, 201 pp.
  2. Boyce, P.C., Sookchaloem, D., Hetterscheid, W.L., Gusman, G., Jacobsen, N., Idei, T. & Nguyen, V.D. (2012) Araceae. Flora of Thailand 11: 101–321.
  3. Cusimano, N., Barrett, M.D., Hetterscheid, W.L. & Renner, S.S. (2010) A phylogeny of the Areae (Araceae) implies that Typhonium, Sauromatum, and the Australian species of Typhonium are distinct clades. Taxon 59: 439–447. https://doi.org/10.1002/tax.592009.
  4. Gagnepain, F. (1942a) Aracées. In: Lecomte, H. (Ed.) Flore Générale de l’Indo-Chine 6. Masson, Paris, pp. 1174–1181.
  5. Gagnepain, F. (1942b) Typhonium (Araceae) nouveaux d’Indochine. Bulletin de la Société botanique de France 89: 10–12. https://doi.org/10.1080/00378941.1942.10833053.
  6. Hetterscheid, W. (2013) New Typhonium species from Asia. Aroideana 36: 93–97.
  7. Hetterscheid, W.L., Claudel, C. & Flottbek, B.K. (2012) The end of Pseudodracontium NE Br. Aroideana 35: 40–46.
  8. Hetterscheid, W.L.A. & Boyce, P.C. (2000) A reclassification of Sauromatum Schott and new species of Typhonium Schott (Araceae). Aroideana 23: 48–55.
  9. Hetterscheid, W.L.A. & Nguyen, V.D. (2001) Three new species of Typhonium (Araceae) from Vietnam. Aroideana 24: 24–29.
  10. IUCN Standards and Petitions Subcommittee (2022) Guidelines for using IUCN Red List Categories and Criteria. Version 15. Prepared by the Standards and Petitions Subcommittee. Available from: https://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 16 April 2022).
  11. Low, S.L., Yu, C.C., Ooi, I.H., Eiadthong, W., Galloway, A., Zhou, Z.K. & Xing, Y.W. (2021) Extensive Miocene speciation in and out of Indochina: The biogeographic history of Typhonium sensu stricto (Araceae) and its implication for the assembly of Indochina flora. Journal of Systematics and Evolution 59: 419–428. https://doi.org/10.1111/jse.12689.
  12. 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. https://doi.org/10.3417/D-16-00020.
  13. Mansor, M., Boyce, P.C., Othman, A.S. & Sulaiman, B. (2011) The Araceae of Peninsular Malaysia (Penerbit USM): Penerbit USM, 146 pp.
  14. Nguyen-Phi, N., Van, H.T. & Luu, H.T. (2023) Typhonium rhizomatosum (Araceae), a new record for the flora of Vietnam. Academia Journal of Biology in press.
  15. Nguyen, V.D. (2005) Araceae. In: Nguyen, T.B. (Ed.) Checklist of plant species of Vietnam, vol. 3. Agriculture Publishing House, Hanoi, pp. 871–898.
  16. Nguyen, V.D. (2008) Typhonium stigmatilobatum (Araceae tribe Areae), a new species from Vietnam. Kew Bulletin 63: 491–493. https://doi.org/10.1007/s12225-008-9044-8.
  17. Nguyen, V.D. (2017) Flora of Vietnam 16: Araceae Juss. Hanoi: Publishing House for Science and Technology, 458 pp.
  18. Nguyen, V.D. & Croat, T.B. (1997) A new species of Typhonium (Araceae) from Vietnam. Aroideana 20: 48–52.
  19. Nguyen, V.D. & Croat, T.B. (2010) A new species of Typhonium (Araceae) from Vietnam. Novon 20: 195–197. https://doi.org/10.3417/2008091
  20. Nguyen, V.D., Le, C.T., Dinh, Q.D., Nguyen, T.V.A., Tran, V.T. & Croat, T.B. (2022a) Typhonium kbangense, a new species of Araceae (Aroidea–Areae) from Central Vietnam. Nordic Journal of Botany 2022: e03601. https://doi.org/10.1111/njb.03601.
  21. Nguyen, V.D., Le, C.T., Nguyen, V.D., Ha, M.T., Nguyen, T.V.A. & Croat, T. (2021) Typhonium phuocbinhense sp. nov. (Araceae: Areae), a new species from central Vietnam. Phytotaxa 482: 73–79. https://doi.org/10.11646/phytotaxa.482.1.8.
  22. Nguyen, V.D., Nguyen, T.V.A., Tran, V.T. & Le, C.T. (2022b) Two new records of species and a new synonym of genus Typhonium (Araceae) for flora of Indochina. VNU Journal of Science: Natural Sciences and Technology 38: 54–60. https://doi.org/10.25073/2588-1140/vnunst.5321
  23. Nguyen, V.D. & Vu, X.P. (2004) The genus Typhonium (Araceae) in flora of Vietnam. Academia Journal of Biology 26: 25–31.
  24. Nicolson, D.H. & Sivadasan, M. (1981) Four frequently confused species of Typhonium Schott (Araceae). Blumea: Biodiversity, Evolution and Biogeography of Plants 27: 483–497.
  25. Pham-Hoang, H. (1993) Cây cỏ Việt Nam [An illustrated flora of Vietnam]. Vol. 3. Montreal, Canada, 1176 pp.
  26. Pham-Hoang, H. (2003) Cây cỏ Việt Nam [An illustrated flora of Vietnam]. Vol. 3. Ho Chi Minh: Youth Publishing House, 1020 pp.
  27. Ridley, H.N. (1904) New Malayan plants. Journal of the Straits Branch of the Royal Asiatic Society 41: 31–51.
  28. Schott, H.W. (1829) Für Liebhaber der Botanik. Wiener Zeitschriftfür Kunst, Litteratur, Theater und Mode 1829: 732.
  29. Serebryanyi, M., Trinh, T. & Hetterscheid, W. (2023) New tuberous Araceae from Binh Thuan Province (South Vietnam). Blumea 68: 39–48. https://doi.org/10.3767/blumea.2023.68.01.03.
  30. Sriboonma, D., Murata, J. & Iwatsuki, K. (1994) Revision of Typhonium (Araceae). Journal of the Faculty of Science, University of Tokyo. Section III, Botany 15: 255–313.
  31. Van, H.T., Nguyen-Phi, N., Vu, N.L., Galloway, A. & Luu, H.T. (2017) Typhonium dongnaiense (Araceae), a new species from Vietnam. Annales Botanici Fennici 54: 405–408. https://doi.org/10.5735/085.054.0622.
  32. Van, H.T., Van Son, L., Nguyen-Phi, N., Nguyen, Q.D., Nguyen, T.Q.T., Nguyen, H.C. & Luu, H.T. (2021) A new species and a new record of Typhonium (Araceae) from southern Vietnam. Phytotaxa 527: 201–208. https://doi.org/10.11646/phytotaxa.527.3.4