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  1. Family: Orchidaceae Juss.
    1. Genus: Disa P.J.Bergius
      1. Disa erubescens Rendle

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

    [FTEA]

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

    Habit
    A terrestrial herb 3–9 dm. high, glabrous except for the roots.
    Tubers
    Tubers ellipsoid, ovoid or almost globose, 1.5–3 cm. long, 8–15 mm. in diameter, — hairy.
    Roots
    Roots slender, flexuous, pubescent.
    Stem
    Sterile stems up to 12 cm. long, with several red-spotted overlapping sheaths in the lower part and 1–3 leaves at the apex; leaves linear or lanceolate-linear, acute, up to 37 cm. long, 0.5–2 cm. broad. Flowering stems erect, slender to rather stout, almost entirely covered by ± adpressed sheathing leaves, terete; leaves 9–16, usually 11–13; lowermost 2–3 very short, sheath-like, spotted with red, remainder lanceolate, acute, the largest 3.5–9 cm. long, 1–1.5 cm. broad, the uppermost similar to the bracts.
    Inflorescences
    Inflorescence up to 19 cm. long, 4–7.5 cm. in diameter, loosely or rather densely 2–12-flowered.
    Bracts
    Bracts similar to the upper leaves but longer acuminate, 2.5–5.5 cm. long, shorter than the flowers.
    Flowers
    Flowers suberect, deep orange, scarlet or deep red with darker spots, apices of petals orange or yellow with reddish spots; pedicel with ovary straight, 1.7–2.5 cm. long, the pedicel very short.
    Calyx
    Dorsal sepal erect or ± incurved, with a long narrow lower part ±1.5 cm. long and an elliptical or ovate blade which is spurred in the middle, altogether 2–3 cm. long, the blade 8–14 mm. broad, the spur projecting backwards or upcurved, cylindrical, 8–14 mm. long; laterals spreading upwards, obliquely oblong, obtuse, ± 2 cm. long, 6–9 mm. broad.
    Corolla
    Petals erect, the lower part very obliquely ovate, slightly cordate at the base, 7–11 mm. long and nearly as broad, the upper part drawn out into a long linear or subspathulate curved-forward appendage, total length of petal 1.8–2.4 cm.
    Labellum
    Lip pendulous or curving forwards, narrowly linear, 1–1.5 cm. long, scarcely 1 mm. broad.
    Anthers
    Anther erect, 5–7 mm. high, shortly stalked.
    Stigma
    Stigma orbicular or elliptical, 3–5 mm. in diameter.
    Habitat
    In short upland grassland, especially where drainage poor and in swamps; 1350–2550m.
    Distribution
    K2 K3 K5 K6 T4 T6 T7 T8 U1 U2
    [FWTA]

    Orchidaceae, V. S. Summerhayes. Flora of West Tropical Africa 3:1. 1968

    Habit
    A terrestrial herb 1-3 ft. high
    Leaf sheaths
    The lower sheaths spotted
    Leaves
    Leaves on separate barren shoots linear or narrowly lanceolate, 6-18 in. long
    Inflorescences
    Spike about 2-6 in. long, rather lax, 3-10-flowered
    Flowers
    Flowers orange, flame-coloured or deep red, spotted in parts
    Ecology
    In grassy places and marshes.
    [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 shoots to 12 cm long; leaves 2–3, conduplicate, to 30 × 2 cm, linear, acute, erect. Fertile shoots 40–90 cm tall; leaves imbricate, 3–8 cm long, lanceolate, acute, sheathing, only the apices free.
    Sterile
    Sterile shoots to 12 cm long; leaves 2–3, conduplicate, to 30 × 2 cm, linear, acute, erect.
    Fertile
    Fertile shoots 40–90 cm tall; leaves imbricate, 3–8 cm long, lanceolate, acute, sheathing, only the apices free.
    Inflorescences
    Inflorescence lax, 5–13 cm long, 1–6(12)-flowered.
    Bracts
    Floral bracts c. 3 cm long, lanceolate, acute, reaching up to the flowers.
    Flowers
    Flowers bright red.
    Calyx
    Dorsal sepal spathulate; claw erect, 11–26 × 3–7 mm, canaliculate; blade 12–20 mm long, ovate-elliptic, acute, galea 3–5 mm deep, facing downwards.
    Spur
    Spur ascending from shortly below the middle of the blade, slender, 8–16 mm long.
    Corolla
    Petals 2-lobed; anterior lobe 7–15 mm long, ovate, flanking the anther, spreading; posterior lobe 20–35 mm long, linear, ascending inside the galea, parallel in the lower half, then diverging by an S-shaped curve.
    Labellum
    Lip pendent, 9–20 mm long, linear.
    Rostellum
    Rostellum 2 mm long.
    Anthers
    Anther erect, 5–8 mm long.
    Stigma
    Stigma sessile, tripulvinate, 3–4 mm in diameter.
    Ovary
    Ovary c. 2 cm long.

    Images

    Distribution

    Native to:

    Angola, Burundi, Cameroon, Kenya, Malawi, Mozambique, Nigeria, Rwanda, Sudan, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

    Accepted Infraspecifics

    Other Data

    Disa erubescens Rendle appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Sep 20, 1993 Hall, J.B. [12], Nigeria K000483049
    Jan 1, 1989 Gereau, R.E. [3110], Tanzania K000483037
    Jan 1, 1985 Leeuwenberg, A.J.M. [9951], Cameroon K000106527
    May 14, 1974 Williamson, G. [658], Zambia K000483058
    May 9, 1974 Sanane, M. [1047], Zambia K000483056
    Mar 1, 1973 Becquet, A. [177], Rwanda K000483034
    Sep 23, 1972 Bauer, P.J. [82], Cameroon K000106528
    Feb 1, 1970 Saxer, A. [8], Cameroon K000106530
    Feb 1, 1970 Saxer, A. [61], Cameroon K000106531
    Zambia 33994.000
    Milne-Redhead, E. [8309], Tanzania 18525.000
    Milne-Redhead, E. [4045], Angola 20904.000
    Drummond, R.B. [1561], Tanzania 20909.000
    Watermeyer, A.M. [208 C-D], Tanzania 18527.000
    Copley, H. [103], Kenya 20903.000
    Piers, F. [120], Kenya 18533.000
    Smart, J.B. [8], Kenya K000483050
    Bullock, A.A. [3674], Tanzania 20687.000
    Gregory, H. [301], Cameroon 20902.000
    Richards, H.M. [7812], Tanzania 20910.000
    Richards, H.M. [7694], Tanzania 9415.000
    Polhill, R. [1418], Tanzania 26912.000
    Robinson, E.A. [4165], Zambia 18530.000
    Osmaston, H.A. [1340], Uganda 20906.000
    Osmaston, H.A. [1340], Uganda K000483047
    Myers, J.G. [11574], Sudan K000483051
    Williamson, G. [793], Zambia 17326.023
    Scott Elliot, G.F. [7809], Uganda K000077519 holotype
    Williams, J.G. [11086], Kenya 20684.000
    Napier, P. [1890], Kenya K000483041
    Cribb, P. [10439], Tanzania 36773.000
    Jackson, J.K. [1513], Sudan K000483052
    Lewis, B.A. [1385], Tanzania 60281.000
    Lewis, B.A. [1385], Tanzania K000483039
    Bytebier, B. [2509], Tanzania K000483053
    Richards, H.M. [19602], Zambia K000483057
    Jannerup, P.L. [0413], Tanzania 71161.000
    Jannerup, P.L. [413], Tanzania K000483035
    Jannerup, P.L. [413], Tanzania K000483036
    Jannerup, P.L. [413], Tanzania K000483038
    Chapman, J.W.F. [2957], Nigeria K000483048
    Lye, K.A. [893], Uganda K000483046
    Reekmans, M. [6727], Burundi K000483042
    Christiaensen, A.R. [258], Congo, DRC K000483043
    Phillips, E. [4600], Malawi K000483055
    Blackmore, S. [362], Malawi K000483054
    Symes, Y.E. [613], Kenya K000483040
    Lebrun, J.P. [8654], Congo, DRC K000483044
    Piurseglove, J.W. [1614], Uganda K000483045

    Bibliography

    First published in J. Bot. 33: 297 (1895)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Bytebier, B., Sakwa, J. & Kurzweil, H. (2004). New and interesting Orchid records for Tanzania Journal of the East Africa Natural History Society and National Museum 93: 63-67.
    • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of West Tropical Africa

    • F.T.A. 7: 277.
    • in J. Bot. 33: 297 (1895)

    Flora of Tropical East Africa

    • Summerh. in Flora of West Tropical Africa, ed. 2, 3: 200 (1968).
    • Tweedie in Journ. E.A. Nat. Hist. Soc. 24: 33 (1964).
    • Piers, Orch. E. Afr.: 37, t. 1/7 (1959).
    • Robyns & Tournay, Flore des Spermatophytes du Parc National Albert. 3: 442 (1955).
    • Summerh. in Flora of West Tropical Africa 2: 414 (1936), excl. fig. 326 pro parte.
    • N.E. Br. in Flora of Tropical Africa 7: 277 (1898).
    • Rendle in Journal of Botany 33: 297 (1895).

    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

    Flora of West Tropical Africa
    Flora of West Tropical 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.
    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