A revision of Meiogyne (Annonaceae) in Thailand, with descriptions of four new species
DOI:
https://doi.org/10.20531/tfb.2019.47.1.13Keywords:
Annonaceae, Southeast Asia, tree diversity, taxonomyAbstract
We review the species diversity of the Asian genus Meiogyne (Annonaceae) in Thailand. Four new species, M. anomalocarpa, M. chiangraiensis, M. gardneri, and M. maxiflora, are described. Meiogyne anomalocarpa has the widest distribution of any Meiogyne species in Thailand, but the other three species are narrowly distributed. Meiogyne anomalocarpa and M. maxiflora have the axillary inflorescences typical of the genus, but in M. chiangraiensis and M. gardneri the inflorescences are flagelliform and arise from the lower trunk, a morphology previously unreported from members of this genus. The presence of M. chiangraiensis in northern Thailand extends the range of the genus significantly northward. Meiogyne caudata is reported as new to the flora of Thailand. Several Meiogyne specimens from southernmost Thailand previously identified as M. virgata in the past by various workers were found to be more similar to M. kanthanensis, recently described from Perak, Peninsular Malaysia. A key is provided for the eight species currently recognized as occurring in the country.
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References
Bân, N.T. (1973). Chto takoe Fissistigma hainanense Merr. (Annonaceae)? Botanicheskii Zhurnal 58: 1146–1148.
Bân, N.T. (1974). Critical notes on some species of the genus Desmos Lour. (Annonaceae). Botanicheskii Zhurnal 59: 1766–1780.
Chalermglin, P. (2001). Family Annonaceae. Bangkok: Ban Lae Suan [in Thai].
Chaowasku, T., Zijlstra, G. & Chatrou, L.W. (2011). (2029) Proposal to conserve the name Meiogyne
against Fitzalania (Annonaceae). Taxon 60: 1522–1523.
Fischer, C.E.C. (1926). LVI.—Contributions to the flora of Burma. Bulletin of Miscellaneous Information, Royal Gardens, Kew. 1926: 446–468.
Gardner, S., Sidisunthorn, P. & Chayamarit, K. (2015). Forest trees of southern Thailand. Volume 1 (A–Es). The Forest Herbarium, Bangkok, The Royal Botanic Gardens, Kew. xix + 1–749.
Heusden, E.C.H. van (1994). Revision of Meiogyne (Annonaceae). Blumea 38: 487–511.
Heusden, E.C.H. van (1996). The genus Meiogyne (Annonaceae) in New Caledonia: four new combinations. Bulletin du Muséum d’Histoire Naturelle, Paris, series 4. Section B. Adansonia 18: 75–83.
Merrill, E.D. (1942). Records of Indo-Chinese plants. III. Journal of the Arnold Arboretum 23: 162–164.
Mols, J.B., Gravendeel, B., Chatrou, L.W., Pirie, M.D., Bygrave, P.C., Chase, M.W. & Keßler, P.J.A. (2004). Identifying clades in Asian Annonaceae: monophyletic genera in the polyphyletic Miliuseae. American Journal of Botany 91: 590–600.
Sinclair, J. (1953). Notes on Siamese Annonaceae. Gardens’ Bulletin Singapore 14: 40–44.
Tan, J.P.C., Kiew, R., Saw, L.G. & Ummul-Nazrah, A.R. (2014). Three new species from Gunung Kanthan, a limestone tower karst in Perak, Malaysia. Phytotaxa 177: 146–154.
Thomas, D.C., Surveswaran, S., Xue, B., Sankowsky, G., Mols, J.B., Keßler, P.J.A. & Saunders, R.M.K. (2012). Molecular phylogenetics and historical biogeography of the Meiogyne-Fitzalania clade (Annonaceae): Generic paraphyly and late Miocene-Pliocene diversification in Australasia and the Pacific. Taxon 61: 559–575.
Turner, I.M. (2011). A catalogue of the Annonaceae of Borneo. Phytotaxa 36: 1–120.
Turner, I.M. & Utteridge, T.M.A. (2015). A new species and a new combination in Meiogyne (Annonaceae) of New Guinea. Contributions to the Flora of Mt Jaya, XXI. Kew Bulletin 70: 27.
Xue, B., Liu, M.-F. & Saunders, R.M.K. (2017). The nomenclatural demise of Oncodostigma (Annonaceae): the remaining species transferred to Meiogyne. Phytotaxa 309: 297–298.
Xue, B., Thomas, D.C., Chaowasku, T., Johnson, D.M. & Saunders, R.M.K. (2014). Molecular phylogenetic support for the taxonomic merger of Fitzalania and Meiogyne (Annonaceae): new nomenclatural combinations under the conserved name Meiogyne. Systematic Botany 39: 396–404.
