The ghosts of collections past: characterisation of Neohouzeaua mekongensis (Poaceae: Bambusoideae: Bambuseae: Melocanninae) with an epitype
DOI:
https://doi.org/10.20531/tfb.2021.49.1.18Keywords:
Bamboo, Laos, Mekong River, Schizostachyum, Thailand, UbonAbstract
Identifying a bamboo taxon from the Asian seasonal tropics is notoriously difficult, if not impossible, especially when the type material is lacking vegetative parts. This is due to the fact that old type material associated with the naming of bamboos often consists of only flowering branches and perhaps just a few leaves, and, as bamboos in the field are vegetative for prolonged periods prior to flowering, they are therefore not easily identifiable much of the time. Investigating one such bamboo, Neohouzeaua mekongensis, we show that previous flowering collections made during the seasonal dry (flowering) season could not have easily included key vegetative parts, such as the culm sheaths, which would have assisted in their recognition at other times. We trace this species back to its type localities and propose an epitype in order that its vegetative characteristics are made available to complement the floral characteristics of the original material.
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References
BPG (Bamboo Phylogeny Group) (2012). An updated tribal and subtribal classification for the Bambusoideae (Poaceae). The Journal of the American Bamboo Society 25(1):1–10.
Camus, A. (1922). Un genre nouveau de Bambusee. Bulletin du Museum National d’ Histoire Naturelle 28: 100–102.
Chokthaweepanich, H. (2014). Phylogenetics and Evolution of the Paleotropical Woody Bamboos (Poaceae: Bambusoideae: Bambuseae). Graduate Theses & Dissertations. Paper 13778. Iowa State University, Ames, U.S.A., 212 pp.
Dransfield, S. (1998). Report on fieldwork collecting bamboos in Thailand, October-November 1997. Thai Forest Bulletin (Botany) 26: 35–39.
Dransfield, S., Pattanavibool, R. & Sungkaew, S. (2003). Two new species of Neohouzeoua [sic!] from Thailand and Myanmar. Thai Forest Bulletin (Botany) 31: 27–33.
Gamble, J.S. (1896). The Bambuseae of British India. Annals of the Royal Botanic Garden, Calcutta 7: 102–103, plates 90.
Gamble, J.S. (1923). Neohouzeaua, a new genus of bamboos. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1923(2): 89–93.
Goh, W.L., Chandran, S., Franklin, D.C., Isagi, Y, Koshy, K.C., Sungkaew, S., Yang, H.Q., Xia, N.H. & Wong, K.M. (2013). Multi-gene region phylogenetic analyses suggest reticulate evolution and a clade of Australian origin among paleotropical woody bamboos (Poaceae: Bambusoideae: Bambuseae). Plant Systematics and Evolution 299: 239–257.
Goh, W.L., Sungkaew, S., Teerawatananon, A., Ohrnberger, D., Widjaja, E.A., Sabu, K.K., Gopakumar, B., Koshy, K.C., Xia, N.H. & Wong, K.M. (2020). The phylogenetic position and taxonomic status of the Southeast and South
Asian bamboo genera Neohouzeaua and Ochlandra (Poaceae: Bambusoideae). Phytotaxa 472 (2): 107–122.
Holttum, R.E. (1946). The classification of Malayan bamboos. Journal of the Arnold Arboretum 27: 340–346.
Holttum, R.E. (1956). The classification of bamboos. Phytomorphology 6: 73–90.
Holttum, R.E. (1958). The bamboos of the Malay Peninsula. Gardens’ Bulletin Singapore 16: 1–135.
Janzen, D.H. (1976). Why bamboos wait so long to flower. Annual Review of Ecology and Systematics 7: 347–391.
Kellogg, E.A. (2015). Flowering plants, monocots, Poaceae. In: Kubitzki, K. (ed.) The Families and Genera of Vascular Plants, Vol. 13. Springer, Heidelberg, pp. 1–416.
McClure, F.A. (1957). Typification of the genera of the Bambusoideae. Taxon 6: 199–210.
McClure, F.A. (1966). The Bamboos: A Fresh Perspective. Harvard University Press, Cambridge, Massachusetts, 347 pp.
Soreng, R.J., Peterson, P.M., Romaschenko, K., Davidse, G., Zuloaga, F.O., Judziewicz, E.J., Filgueiras, T.S., Davis, J.I. & Morrone, O. (2015). A worldwide phylogenetic classification of the Poaceae (Gramineae). Journal of Systematics and Evolution 53(2): 117–137.
Soreng, R.J., Peterson, P.M., Romaschenko, K., Davidse, G., Teisher, J.K., Clark, L.G., Barbera, P., Gillespie, L.J. & Zuloaga, F.O. (2017). A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications. Journal of Systematics and Evolution 55(4): 259–290.
Sungkaew, S., Stapleton, C.M.A., Salamin, N. & Hodkinson, T.R. (2009). Non-monophyly of the woody bamboos (Bambuseae; Poaceae): a multigene region phylogenetic analysis of Bambusoideae s.s. Journal of Plant Research 122: 95–108.
Thiers, B. (2020, continuously updated). Index Herbariorum: a global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium.
Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (2018). International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code) adopted by the Nineteenth International Botanical Congress Shenzhen, China, July 2017. Regnum Vegetabile 159. Koeltz Botanical Books, Glashütten.
Vorontsova, M., Clark, L.G., Dransfield, J., Govaerts, R.H.A., Wilkinson, T. & Baker, W.J. (2016). World Atlas of Bamboos and Rattans. International Network of Bamboo and Rattan & the Board of Trustees of the Royal Botanic Gardens, Kew, 819 pp.
Wong, K.M. (1995a). The Bamboos of Peninsular Malaysia. Malayan Forest Records No. 41. Forest Research Institute Malaysia, Kuala Lumpur, 200 pp.
Wong, K.M. (1995b). The Morphology, Anatomy, Biology and Classification of Peninsular Malaysian Bamboos. University of Malaya Botanical Monographs No. 1. University of Malaya, Kuala Lumpur, 189 pp.
Wong, K.M., Goh, W.L., Chokthaweepanich, H., Clark, L.G., Sungkaew, S., Widjaja, E.A. & Xia, N.H. (2016). A subtribal classification of Malesian and Southwest Pacific woody bamboos (Poaceae: Bambusoideae: Bambuseae) informed by morphological and molecular studies. Sandakania 22: 1–36.
Xia, N.H. (1993). Studies on the genus Schizostachyum and other bamboos from China. Journal of Tropical and Subtropical Botany 1: 1–10.
Yang, H.Q., Peng, S. & Li, D.Z. (2007). Generic delimitations of Schizostachyum and its allies (Gramineae: Bambusoideae) inferred from GBSSI and trnL-F sequence phylogenies. Taxon 56: 45–54.
Yang, H.Q., Yang, J.B., Peng, Z.H., Gao, J., Yang, Y.M., Peng, S. & Li, D.Z. (2008). A molecular phylogenetic and fruit evolutionary analysis of the major groups of the paleotropical woody bamboos (Gramineae: Bambusoideae) based on nuclear ITS, GBSSI gene and plastid trnL-F DNA sequences. Molecular Phylogenetics and Evolution 48: 809–824.
