Plant Ecology and Evolution 151(1): 110-118, doi: 10.5091/plecevo.2018.1387
Two new species of Thismia subsect. Odoardoa (Thismiaceae) from Borneo
expand article infoMichal Hroneš, Martin Rejžek§, Michal Sochor|, Martin Svátek§, Jakub Kvasnica§, Zuzana Egertová, Joan T. Pereira#, Reuben Nilus#, Martin Dančák¤
‡ Palacký University, Olomouc, Czech Republic§ Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, Brno, CZ-61300, Czech Republic| Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Šlechtitelů 29, Olomouc, CZ-78371, Czech Republic¶ Department of Botany, Palacký University, Šlechtitelů 27, Olomouc, CZ-78371, Czech Republic# Forest Research Centre, Sabah Forestry Department, P.O. Box 1407, Sandakan, 90715 Sabah, Malaysia¤ Department of Ecology and Environmental Sciences, Palacký University, Šlechtitelů 27, Olomouc, CZ-78371, Czech Republic
Open Access
Abstract

Background – Two new species of the sect. Thismia subsect. Odoardoa, Thismia cornuta Hroneš, Sochor & Dančák and Thismia pallida Hroneš, Dančák & Rejžek, from Malaysian Borneo are described and illustrated. The former species is distributed in the Bario area of the Kelabit Highlands of Sarawak, and the latter occurs in the SAFE (Stability of Altered Forest Ecosystem) Project area, northwest of Tawau in Sabah.

Methods – This study is based on field observations in several forest localities in Sarawak and Sabah and herbarium material deposited in SAN, SAR and OL. Both conventional herbarium techniques and comparison with protologues of described species were applied.

ResultsThismia cornuta is morphologically closely related to T. inconspicua Sochor & Dančák from Brunei Darussalam and T. chrysops Ridl. from the Malay Peninsula but it differs from both species by the presence of only two appendages at apical margin of the connective, by horn-like projection on each side of the lateral appendage and by white colour of perianth tube. It was found at three localities and is preliminarily treated as endangered (EN). Thismia pallida is morphologically close to T. filiformis Chantanaorr. from Thailand but differs by the presence of five appendages at apical margin of connective, by box-shaped lateral appendage exceeding apex of connective and by shorter filiform appendage of perianth lobe. It was found at a single locality within twice logged secondary forest and it is preliminarily treated as critically endangered (CR). This is only the second record of Thismia species inhabiting secondary forests in tropical Asia.

Keywords
Malesia, mycoheterotrophy, Sabah, Sarawak, tropical rain forest

References

  • Beccari O. (1878) Burmanniaceae. Malesia 1: 240–254.
  • Beentje H. (2010) The Kew plant glossary: an illustrated dictionary of plant terms. Kew, Royal Botanic Gardens.
  • Chantanaorrapint S., Wai J.S., Poopath M., Tetsana M. (2016) Thismia claviformis (Thismiaceae), a new species from the Thai-Malay Peninsula. Phytotaxa 280: 292–296. https://doi.org/10.11646/phytotaxa.280.3.8
  • Cowie I.D., Liddle D.T. (2016) Thismia tectipora (Thismiaceae) a new, unusual mitre-form species from tropical Australia. Nuytsia 27: 85–94.
  • Dančák M., Hroneš M., Sochor M., Kobrlová L., Hédl R., Hrázský Z., Vildomcová A., Sukri R.S., Metali F. (2013) A new species of Thismia (Thismiaceae) from Brunei Darussalam, Borneo. Phytotaxa 125: 33–39. https://doi.org/10.11646/phytotaxa.125.1.5
  • Dančák M., Hroneš M., Sukri R.S., Metali F., Joffre A.A. (2017) Novitates Bruneienses, 9. A synopsis of Epirixanthes (Polygalaceae) in Brunei Darussalam and notes on species elsewhere. Gardens’ Bulletin Singapore 69: 179–187. https://doi.org/10.26492/gbs69(2).2017-03
  • Ewers R.M., Didham R.K., Fahrig L., Ferraz G., Hector A., Holt R.D., Kapos V., Reynolds G., Sinun W., Snaddon J.L., Turner E.C. (2011) A large-scale forest fragmentation experiment: the Stability of Altered Forest Ecosystems Project. Philosophical Transactions of the Royal Society B: Biological Sciences 366: 3292–3302. https://doi.org/10.1098/rstb.2011.0049
  • Guilherme F.A.G., Coelho C.P., Smidt E.C., Gomes D.C., de Souza L.F. (2016) Thismia panamensis: first record of Thismiaceae for the Brazilian Cerrado in Goiás state. Check List 12: 1877. https://doi.org/10.15560/12.2.1877
  • Hickey M., King C. (2000) The Cambridge illustrated glossary of botanical terms. Cambridge, Cambridge University Press.
  • Hotta M. (1967) Notes on Bornean Plants II. Acta Phytotaxonomica et Geobotanica 22: 153–162.
  • Hroneš M., Kobrlová L., Taraška V., Popelka O., Hédl R., Sukri R.S., Metali F., Dančák M. (2015) Thismia brunneomitra, another new species of Thismia (Thismiaceae) from Ulu Temburong, Brunei Darussalam. Phytotaxa 234: 172–178. https://doi.org/10.11646/phytotaxa.234.2.7
  • Hunt C.A., Steenbeeke G., Merckx V.S.F.T. (2014) Thismia megalongensis (Thismiaceae), a new species of Thismia from New South Wales. Telopea 16: 165–174.
  • IUCN (2012) IUCN Red List categories and criteria, version 3.1. 2nd Ed. Gland, Switzerland & Cambridge, UK, IUCN.
  • Jarvie J.K. (1996) Thismia lauriana (Burmanniaceae), a new species from central Kalimantan. Blumea 41: 257–259.
  • Jonker F.P. (1948) Burmanniaceae. In: van Steenis C.G.G.J. (ed.) Flora Malesiana, series I/4: 13–26. Leiden, Noordhoff-Kolf.
  • Kumar P., Gale S.W., Li J.-H., Bouamanivong S., Fischer G.A. (2017) Thismia nigricoronata, a new species of Burmanniaceae (Thismieae, Dioscoreales) from Vang Vieng, Vientiane Province, Laos, and a key to subgeneric classification. Phytotaxa 319: 225–240. https://doi.org/10.11646/phytotaxa.319.3.2
  • Maas P.J.M., Maas-van de Kamer H., van Benthem J., Snelders H.C.M., Rübsamen T. (1986) Burmanniaceae. Flora Neotropica Monograph 42: 1–189.
  • Mar S.S., Saunders R.M.K. (2015) Thismia hongkongensis (Thismiaceae): a new mycoheterotrophic species from Hong Kong, China, with observations on floral visitors and seed dispersal. PhytoKeys 46: 21–33. https://doi.org/10.3897/phytokeys.46.8963
  • Merckx V. S.F.T., Schols P., Maas-van de Kamer H.M., Maas P., Huysmans S., Smets E. (2006) Phylogeny and evolution of Burmanniaceae (Dioscoreales) based on nuclear and mitochondrial data. American Journal of Botany 93: 1684–1698. https://doi.org/10.3732/ajb.93.11.1684
  • Merckx V.S.F.T., Freudenstein J.V., Kissling J., Christenhusz M.J.M., Stotler R.E., Crandall-Stotler B., Wickett N., Rudall P.J., Maas-van de Kamer H., Maas P.J.M. (2013) Taxonomy and classification. In: Merckx V.S.F.T. (ed.) Mycoheterotrophy: the biology of plants living on fungi: 19–101. New York, Springer. https://doi.org/10.1007/978-1-4614-5209-6_2
  • Roberts N., Wapstra M., Duncan F., Woolley A., Morley J., Fitzgerald N. (2003) Shedding some light on Thismia rodwayi F. Muell. (fairy lanterns) in Tasmania: distribution, habitat and conservation status. Papers and Proceedings of the Royal Society of Tasmania 137: 55–66.
  • Stone B.C. (1980) Rediscovery of Thismia clavigera (Becc.) F. v. M. (Burmanniaceae). Blumea 26: 419–425.
  • Suetsugu K., Tsukaya H., Tagane S., Suddee S., Rueangruea S., Yahara T. (2017) Thismia brunneomitroides (Thismiaceae), a new mycoheterotrophic species from southern Thailand. Phytotaxa 314: 103–109. https://doi.org/10.11646/phytotaxa.314.1.9
  • Sujanapal P., Robi A.J., Dantas K.J., Sumod M., Merckx V.S.F.T. (2017) Thismia (Thismiaceae): the first record of the mycoheterotrophic genus to the Flora of India with a new species revealing the phytogeographical significance of Western Ghats. Blumea 62: 97–102. https://doi.org/10.3767/blumea.2017.62.2.04
  • The Angiosperm Phylogeny Group (2016) An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV. Botanical Journal of the Linnean Society 181: 1–20. https://doi.org/10.1111/boj.12385