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  1. Family: Orchidaceae Juss.
    1. Genus: Disa P.J.Bergius
      1. Disa engleriana Kraenzl.

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

    [FZ]

    Orchidaceae, I. la Croix and P.J. Cribb. Flora Zambesiaca 11:1. 1995

    Habit
    Terrestrial herb with separate fertile and sterile shoots.
    Shoots
    Sterile shoot up to 60 cm tall; leaves2–4, to 22 × 2 cm, linear-lanceolate, acute. Fertile shoot up to 60 cm tall; cauline leaves imbricate, 4–8 cm long, closely sheathing the scape, free blades produced occasionally; basal leaves 2–3 cm long.
    Sterile
    Sterile shoot up to 60 cm tall; leaves2–4, to 22 × 2 cm, linear-lanceolate, acute.
    Fertile
    Fertile shoot up to 60 cm tall; cauline leaves imbricate, 4–8 cm long, closely sheathing the scape, free blades produced occasionally; basal leaves 2–3 cm long.
    Inflorescences
    Inflorescence lax to subdense, 6–22 cm long, 3–20-flowered.
    Bracts
    Floral bracts 3–5 cm long, ovate, acuminate, usually overtopping the flowers.
    Flowers
    Flowers facing down, pink.
    Calyx
    Dorsal sepal 14–22 mm long, spathulate; claw 3–6 × 3–4 mm, canaliculate, not always distinct; blade c. 14 mm in diameter, round, obtuse, bowl-shaped and usually curved. Lateral sepals 13–20 mm long, obliquely oblong, obtuse, spreading sideways and upwards.
    Spur
    Spur pendent from shortly below the middle of the dorsal sepal, reaching to below its base, 13–20 mm long, clavate, obtuse, spreading sideways and upwards.
    Corolla
    Petals 2-lobed, 10–15 mm long; anterior lobe 7–11 × 5–8 mm, margin entire or rarely serrate, spreading; posterior lobes 10–15 × 3–5 mm, ovate-spathulate, acute to serrate apically, included in the galea and partially overlapping.
    Labellum
    Lip 14–18 mm long, linear, pendent.
    Anthers
    Anther erect, 5–7 mm long, connective longer than the anther.
    Stigma
    Stigma flat, c. 3 mm in diameter.
    Ovary
    Ovary c. 2 cm long.
    [FTEA]

    Orchidaceae, V. S. Summerhayes. Flora of Tropical East Africa. 1968

    Habit
    A terrestrial herb 3–5.5 dm. high, glabrous except for the roots.
    Tubers
    Tubers ellipsoid to elongate-ovoid, 2–4 cm. long, 1–2 cm. in diameter, densely tomentose.
    Roots
    Roots slender, flexuous, ± pubescent.
    Stem
    Flowering stems slender to rather stout, almost entirely covered by adpressed sheathing leaves, terete; leaves 9–14, the lowermost short, sheath-like, red-spotted or barred, the remainder lanceolate, acute, the largest 3.5–7 cm. long and 1–2 cm. broad, the uppermost similar to the bracts. Sterile stems up to 5 cm. long, covered by several overlapping red-spotted sheaths, 3–4-leaved at the apex; leaves linear-lanceolate to lanceolate, acute, tapering in the lower part, 9–22 cm. long, 1–2 cm. broad.
    Inflorescences
    Inflorescence 6–21 cm. long, 4–6 cm. in diameter, rather loosely 5–27-flowered.
    Bracts
    Bracts leafy, lanceolate, acuminate, 2–4.5 cm. long, about equalling or longer than the flowers.
    Flowers
    Flowers suberect or curved outwards, pink to purple or magenta, often darker spotted, paler within, fragrant; pedicel with ovary slightly curved, 1.4–1.8 cm. long.
    Calyx
    Dorsal sepal somewhat refiexed from the middle, orbicular or transversely elliptical with a distinct narrow lower part, altogether 1.5–2 cm. long and ± the same breadth or a little narrower, spurred below the middle, the spur pendent, cylindrical, 5–7 mm. long; laterals spreading upwards, obliquely oblong, obtuse, 1.5–2 cm. long, 7–10 mm. broad.
    Corolla
    Petals 2-lobed at the middle, altogether 1–1.8 cm. long, the lower (front) lobe obliquely elliptical or ovate, rounded at the apex, 6–10 mm. long, 4–10 mm. broad, the upper (back) lobe obliquely ovate or narrowly ovate, subacute or acute, 4–8 mm. long and broad.
    Labellum
    Lip pendent, linear, 8–17 mm. long, 1–2 mm. broad.
    Anthers
    Anther erect, shortly stalked, 5–8 mm. high.
    Stigma
    Stigma orbicular or elliptical, 2–3 mm. in diameter.
    Habitat
    Upland grassland; 1750–2100 m.
    Distribution
    T7

    Distribution

    Native to:

    Angola, Malawi, Tanzania, Zambia, Zaïre

    Synonyms

    Other Data

    Disa engleriana Kraenzl. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Zambia 33878.000
    Holmes, W.D. [0211], Malawi 26804.000
    Holmes, W.D. [0211], Zambia 36571.000
    Richards, H.M. [4045], Zambia 1848.000
    Bullock, A.A. [2199], Zambia 1849.000
    Richards, H.M. [12050], Zambia 1844.000
    Richards, H.M. [10850], Zambia 1845.000
    Richards, H.M. [10812], Zambia 1846.000
    Richards, H.M. [15947], Zambia 3008.000
    Richards, H.M. [8078], Zambia 6655.000
    Polhill, R. [1787], Tanzania 3009.000
    Fanshawe, D.B. [2956], Zambia 1847.000
    Williamson, G. [281], Zambia 33993.000

    Bibliography

    First published in Bot. Jahrb. Syst. 33: 58 (1902)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.

    Flora of Tropical East Africa

    • Summerh. in Kew Bulletin 17: 538 (1964).
    • Schltr. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 53: 539 (1915).
    • Kraenzl. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 33: 58 (1902).

    Sources

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

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    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.

    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