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Sokinochloa, a new bamboo genus (Poaceae-Bambusoideae) from Madagascar

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Summary

Sokinochloa, from Madagascar, is described as a new genus. It is characterised by the climbing habit and the determinate, capitulate inflorescence with the presence of subtending bracts; the internodes of the inflorescence are extremely short and there are three or more branches at each node borne at the same level, bearing sterile and fertile spikelets; the fertile spikelet consists of five glumes and one floret. Superficially the capitulate inflorescence resembles that of tropical and subtropical Asian Cephalostachyum Munro (Melocanninae Benth.), which has indeterminate inflorescences. Sokinochloa is included in the subtribe Hickeliinae A. Camus. There are seven species, four of them new, S. australis, S. bosseri, S. brachyclada and S. chiataniae, and three new combinations, S. viguieri (A. Camus) S. Dransf., S. perrieri (A. Camus) S. Dransf. and S. chapelieri (Munro) S. Dransf.

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Acknowledgements

Fieldwork in 1988, 1989, 1992, 1996, 2003 and 2007 was supported by the Royal Botanic Gardens, Kew, and in 1994 by NSF Grant through Dr L. G. Clark, Iowa, USA (National Science Foundation Grant DEB-9218657). I would like to thank Dr Voara Randrinosolo, Dr Albert Randrianjafy, the Director of the Department des Eaux et Forêts, the Director of ANGAP, Dr G. Schatz (MO), Dr D. Du Puy, Dr H. Beentje (K), and Dr H. Ralimanana and the staff of KMCC (Kew Madagascar Conservation Centre) in helping to arrange permits and with logistic matters; Jacky Andriantiana, Guy Rafamatantsoa, John Dransfield, Henk Beentje, Mijoro Rakotoarinivo, Tiana Randriamboavonjy, Franck Rakotonasolo, Hélène Ralimanana, Roger Rajaonarisan helped in the field; Madame Mag Izouard, Vakona Hotel, allowed the Kew team to collect flowering bamboos in the forest belonging to the hotel; Martin Xanthos (K) helped with the curation and scanning the specimens; Drs John Dransfield and Maria Vorontsova read the manuscript and provided valuable comments and suggestions. Most of the work was carried out at Kew Herbarium; some parts were accomplished in Paris Herbarium and Aarhus Herbarium, I would like to thank their directors for providing working facilities and for the loan of specimens (P). I would like to thank Dr Thomas Haevermans (P) for showing me Bosser’s specimens and for allowing me to borrow the specimen and dissect the flowers. An anonymous reviewer provided constructive and helpful comments.

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  1. Herbarium, Royal Botanic Gardens, Kew, Surrey, TW9 3AE, UK

    Soejatmi Dransfield

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  1. Soejatmi Dransfield
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Correspondence to Soejatmi Dransfield.

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Dransfield, S. Sokinochloa, a new bamboo genus (Poaceae-Bambusoideae) from Madagascar. Kew Bull 71, 40 (2016). https://doi.org/10.1007/s12225-016-9650-9

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  • DOI: https://doi.org/10.1007/s12225-016-9650-9

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