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  1. Family: Orchidaceae Juss.
    1. Genus: Disperis Sw.
      1. Disperis katangensis Summerh.

        This species is accepted, and its native range is W. Tanzania to Angola.


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

    Terrestrial herb 5–20 cm tall; stem greenish above, beetroot-coloured towards the base; tuber c. 1 cm long, globose.
    Leaves 2, alternate, 1–3 × 0.8–2 cm, ovate, cordate at the base, deep dull green with whitish veins on upper surface, deep purple below.
    Inflorescence 1–5-flowered.
    Flowers pale mauve with yellow and purple marks inside hood; lip yellow with white claw and appendages.
    Ovary 10–13 mm long.
    Bracts leaf-like, 6–20 mm long.
    Dorsal sepal 7–17 mm long, linear, adnate to petals to form an open hood 7–15 mm long, 5.5–11 mm deep and 8–18 mm wide across mouth. Lateral sepals 9–15 × 6–11 mm, obliquely elliptic, apiculate, joined for quarter to one third of their length, each with a sac-like spur up to 0.5 mm long.
    Petals 7–17 × 7–11 mm, elliptic.
    Lip 7.5–10 mm long, the claw sharply bent back near the base and then dilated into an appendage; appendage densely papillate, reniform and emarginate or deeply 2-lobed; the claw ending in a spathulate, elliptic or almost circular limb with a papillate crest.

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

    Glabrous herb, 5.5–14 cm. tall, arising from a hairy ellipsoid tuber 0.5- 2 cm. long, 5–8 mm. wide.
    Leaves 2–3(–4), alternate or rarely the lowest pair subopposite (but at least 1–2 leaves always distant), sessile, sheathing at the base, ovate or rounded-ovate, 0.9–2 cm. long, 0.7–1.8 cm. wide, acuminate or shortly apiculate at the apex, cordate and clasping the stem above the sheath, mostly purplish beneath, the venation mostly whitish.
    Flowers solitary or in 2–4-flowered racemes, white to pinkish-mauve or purplish; bracts leaf-like, elliptic, 0.5–2 cm. long, 0.5–1.1 cm. wide, obtuse or acute.
    Intermediate sepal linear, (0.7-)l.6-l.8 cm. long, joined to the petals to form an open but deeply concave, transversely boat-shaped or sometimes almost hemispherical hood, 0.7–1.5 cm. long, 0.8–1.8 cm. wide (not opened out flat), mostly pinkish or greenish with mauve lines and often a yellow pattern at the back; lateral sepals elliptic or almost semicircular, 0.85–1.7 cm. long, 5.5–10 mm. wide, obliquely apiculate at the apex, joined for about a quarter to a third of their length, bearing small sacs 0.3–0.5 mm. long.
    Petals oblong-elliptic, ovate or semicircular, narrowed at both ends, 0.7–1.7 cm. long, 0.7–1.1 cm. wide.
    Lip mostly yellowish, ± 7.5–10 mm. long, with claw sharply bent back on itself near base and there dilated into a densely papillate appendage, which is typically large, reniform and apically emarginate, 2.5–3.5 mm. long, 4 mm. wide, but varying to deeply 2-lobed; claw terminating in a spathulate, elliptic or almost circular limb bearing a papillate crest or spur.
    Fig. 39/1, p. 220.



    Native to:

    Angola, Tanzania, Zambia, Zaïre

    Accepted Infraspecifics

    Other Data

    Disperis katangensis Summerh. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Holmes, W.D. [0187], Zambia 18550.000
    Milne-Redhead, E. [3699], Zambia 23133.000
    Richards, H.M. [4232], Zambia 21085.000
    Richards, H.M. [10841], Zambia 21083.000
    Richards, H.M. [12051], Zambia 21084.000
    Richards, H.M. [10699], Zambia 9428.000
    Milne-Redhead, E. [3540], Zambia K000306666 holotype
    Brummitt [13809], Zambia 36488.000
    Von Hirschberg, C.W. [168], Congo, DRC K000306667 Unknown type material


    First published in Bull. Misc. Inform. Kew 1931: 384 (1931)

    Accepted by

    • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.


    Flora of Tropical East Africa

    • Summerh. in Hook., Ic. Pl. 33, t. 3271 (1935).
    • Summerh. in Bulletin of Miscellaneous Information, Kew 1931: 384 (1931)


    Flora Zambesiaca
    Flora Zambesiaca

    Flora of Tropical East Africa
    Flora of Tropical East Africa

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    Kew Backbone Distributions
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    © Copyright 2017 World Checklist of Selected Plant Families.

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at and
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.