1. Family: Orchidaceae Juss.
    1. Genus: Polystachya Hook.
      1. Polystachya adansoniae Rchb.f.

        This species is accepted, and its native range is Tropical Africa.

    [FZ]

    Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:2. 1998

    Habit
    Epiphytic herb, with pseudobulbs set close together on a rhizome.
    Pseudobulbs
    Pseudobulbs 1.5–14 × 0.5–0.9 cm, conical to cylindrical, ribbed, 2–3-leaved.
    Leaves
    Leaves 5–16 × 0.6–1.8 cm, ligulate, glossy green.
    Inflorescences
    Inflorescence (floral axis) to c. 15 cm tall, densely many-flowered; peduncle to c. 9 cm long, subtended by a flattened sheath.
    Flowers
    Flowers primrose-scented, greenish-yellow or greenish-white, the sepals sometimes purple-tipped, column and anther cap purple.
    Pedicel and Ovary
    Pedicel and ovary 2–4 mm long, arched.
    Bracts
    Bracts 5–9 mm long, aristate, reflexed.
    Calyx
    Sepals ovate, acuminate; dorsal sepal 3–4 × 1–1.5 mm; lateral sepals 4–5.5 × 2.5–3 mm, narrowing abruptly into the acumen; mentum conical, c. 2.5 mm high.
    Corolla
    Petals 2–3 × 3–5 mm, linear, somewhat falcate.
    Labellum
    Lip 2.8–3.8 mm long, 3-lobed, with a hairy callus at the junction of the lobes; mid-lobe reflexed, 2–4 × 0.7–1 mm, narrowly lanceolate, acuminate; side lobes erect, rounded, c. 2 mm long.
    Column
    Column c. 1.5 mm long.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Central African Repu, Congo, Gabon, Ghana, Guinea, Gulf of Guinea Is., Ivory Coast, Kenya, Liberia, Malawi, Mozambique, Nigeria, Rwanda, Sierra Leone, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

    Polystachya adansoniae Rchb.f. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Oct 1, 2006 van der Burgt, X.M. [828], Guinea 75001.000
    Nov 1, 2000 Ryan, P. [241], Cameroon 77429.000
    Nov 21, 1955 Talbot, P.A. [929], Nigeria K000242277
    Nov 21, 1955 [Freun] [298], Cameroon K000242278
    Jan 1, 1955 Gregory, H. [293], Cameroon K000106751
    Jan 1, 1955 Gregory, H. [294], Cameroon K000106752
    Jan 1, 1955 Maitland, T.D. [727], Cameroon K000106750
    Cameroon 11277.000
    17576.000
    Kenya 46662.000
    Sao Tome and Principe 47499.000
    Côte d'Ivoire 53535.000
    5980.000
    Holmes, W.D. [0338], Zambia 36812.000
    Milne-Redhead, E. [8861 A], Tanzania 17023.000
    Brenan, J.P.M. [22438], Nigeria 17575.000
    Copley, H. [78], Kenya 11269.000
    Piers, F. [89], Kenya 17572.000
    Westwood, D. [11], Ghana 11274.000
    Cansdale, G.S. [94], Ghana 5977.000
    Cox, J.K. [34], Ghana 11275.000
    Eggeling, W.J., Uganda 5979.000
    Eggeling, W.J. [5377], Uganda 5981.000
    Vigne, C. 11279.000
    Harley, W.J. [2132], Liberia 11271.000
    Harley, W.J. [1928], Liberia 9067.000
    Deighton, F.C. [5938], Sierra Leone 17573.000
    Jones, E.W., Nigeria 9078.000
    Adames, P. [66], Sierra Leone 17027.000
    Savory, H.J., Nigeria 5976.000
    Milne-Redhead [8861], Tanzania 29047.009
    Cribb, P. [11085], Tanzania 39402.000
    Fay, J.M. [6636], Central African Republic 48631.000
    Harris, D.J. [1147], Cameroon 53836.000
    Harris, D.J. [2930], Central African Republic 57288.000
    Tunstall, Malawi 36073.000
    Segerback, B. [1118], Nigeria 37172.000
    Gassner, A. [175], Malawi 45004.000
    Bridson, D.M. [209], Kenya 41350.000
    Congdon, T.C.E. [166], Tanzania 52293.000
    Welwitsch [654], Angola K000242276
    Rhead, T. [10,100], Kenya 5978.000
    Ryan, P. [287], Cameroon 76139.000
    Gray, C.C. 9075.000
    Miyawa, D.O. [NMK 1090], Kenya K000743815
    Stevart [1897], Sao Tome and Principe Polystachya ridleyi 71149.000
    Moller, A. [83] Polystachya ridleyi K000242274

    First published in Flora 48: 185 (1865)

    Accepted by

    • Velayos, M. & al. (eds.) (2018). Flora de Guinea Ecuatorial 10: 1-491. Consejo superior de investigaciones científicas, Real jardín botánico, Madrid.
    • Szlachetko, D.L. & Mytnik-Ejsmont, J. (2015). Orchidaceae of West-Central Africa 2: 1-300. Koeltz Scientific books, Koenigsheim, Germany.
    • Mytnik-Ejsmont, J. (2011). A monograph of the subtribe Polystachyinae Schltr. (Orchidaceae): 1-400. Fundacja Rozwoju Uniwersytetu Gdanskiego.
    • Fischer, E., Rembold, K., Althof, A. & Obholzer, J. (2010). Annotated checklist of the vascular plants of Kakamega forest, Western province, Kenya Journal of East African Natural History 99: 129-226.
    • Szlachetko, D.L. (2008). Orchidaceae of Ivory Coast Ruizia 20: 1-396.
    • Szlachetko, D. & Kowalkoska, A. (2007). Contributions to the orchid flora of Guinea, West Africa Polish Botanical Studies 25: 1-259.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
    • Harris, D.J. (2002). The vascular plants of the Dzanga-Sangha Reserve, Central African Republic: 1-274. National Botanic Garden (Belgium), Meise.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.

    Literature

    Flora of West Tropical Africa
    • Cat. Talb. 146.
    • F.T.A. 7: 121
    • in Flora 48: 186(1865)
    Kew Backbone Distributions
    • Mytnik-Ejsmont, J. (2011). A monograph of the subtribe Polystachyinae Schltr. (Orchidaceae): 1-400. Fundacja Rozwoju Uniwersytetu Gdanskiego.
    • Szlachetko, D.L. (2008). Orchidaceae of Ivory Coast Ruizia 20: 1-396.
    • Sita, P. & Moutsambote, J.-M. (2005). Catalogue des plantes vasculaires du Congo, ed. sept. 2005: 1-158. ORSTOM, Centre de Brazzaville.
    • Brunel, J.F., Hiepo, P. & Scholz, H. (eds.) (1984). Flore Analytique du Togo Phanérogames: 1-751. GTZ, Eschborn.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0