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This species is accepted, and its native range is Tanzania to Zambia.
A specimen from Kew's Herbarium

[FTEA]

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

Morphology General Habit
A terrestrial herb 1–3.5 dm. high, glabrous except for the roots.
Vegetative Multiplication Tubers
Tubers globose to elliptical-fusiform, 6–22 mm. long, 5–8 mm. in diameter, ± densely tomentose.
Morphology Roots
Roots slender, flexuous, pubescent.
Morphology Stem
Stem erect, slender to rather slender, terete, with 2 basal leaves and several distant, rather loose sheaths.
Morphology Leaves
Basal leaves adpressed to the ground, orbicular to reniform, rounded or very shortly apiculate, 1.5–3 cm. long, 2–4.5 cm. broad; sheathing leaves 3–6, rather loose and swollen, subacute, 1.5–3 cm. long, 10–17 mm. broad.
Morphology Reproductive morphology Inflorescences
Inflorescence 2.5–6.5 cm. long, 2–2.5 cm. in diameter, densely 6–30-flowered; bracts erect at first, deflexed later, lanceolate, acute, 7–15 mm. long.
Morphology Reproductive morphology Flowers
Flowers spreading, yellow to bright red; pedicel with ovary slightly curved, 7–8 mm. long.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals somewhat decurved, united to one another and to the lip at the very base.
Morphology Reproductive morphology Flowers Calyx
Intermediate sepal oblanceolate, rounded at apex, 5.5–8.5 mm. long, 1.5–3 mm. broad; laterals obliquely oblong-elliptical, very obtuse, a little shorter and broader than the intermediate.
Morphology Reproductive morphology Flowers Corolla
Petals similar to intermediate sepal, 5–7.5 mm. long; all tepals 3–5-veined.
Morphology Reproductive morphology Flowers Labellum
Lip ellipsoid, hooded, apex shortly recurved, 6–7 mm. long, keeled down the back, mouth 3 mm. broad, 2-spurred at base.
Morphology Reproductive morphology Flowers Spur
Spurs slender, curved, tapering, ± 1 cm. long.
Morphology Reproductive morphology Flowers Column
Column erect, nearly 5 mm. high, the stalk equalling the fertile part, curved; anther-loculi pendent, ellipsoid, 2 mm. long; stigma erect, semi-orbicular, 2 mm. broad, 1 mm. high, rostellum projecting downwards, 3-lobed, all lobes acute but middle lobe about twice as long as the side lobes.
Habitat
Upland grassland; 1400–1950 m.
Distribution
T7

[FZ]

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

Morphology General Habit
Terrestrial herb 15–35 cm high; tubers 6–22 × 5–8 mm, almost globose to ellipsoid-fusiform, densely tomentose.
Morphology Leaves
Basal leaves 2, appressed to the ground, 3–4 × 4–6 cm, ± orbicular to reniform; stem with 4–7 loosely sheathing leaves up to 3 cm long.
Morphology Reproductive morphology Inflorescences
Inflorescence 5–7 × 1.3–2.3 cm, fairly densely several- to many-flowered.
Morphology Reproductive morphology Flowers
Flowers bright orange-red, the spurs paler at tips.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 6–8 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts reflexed, 15 mm long at base of inflorescence.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals spreading or slightly decurved, joined to each other and lip for c. 1 mm at base.
Morphology Reproductive morphology Flowers Calyx
Median sepal 7–8.5 × 2–3 mm, oblanceolate; lateral sepals 6–8 × 4 mm, obliquely ovate, obtuse.
Morphology Reproductive morphology Flowers Corolla
Petals 5–7.5 × 2.5 mm, oblanceolate.
Morphology Reproductive morphology Flowers Labellum
Lip 6–7 mm long, very convex, wide-mouthed with a dorsal keel.
Morphology Reproductive morphology Flowers Spur
Spurs 9–10 mm long, slender, parallel to ovary.
Morphology Reproductive morphology Flowers Column
Column c. 5 mm high; stigma 1 × 2 mm; rostellum mid-lobe about twice as long as side lobes.

Native to:

Malawi, Rwanda, Tanzania, Zambia, Zaïre

Satyrium orbiculare Rolfe appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Williamson, G. [795], Zambia 1800.040
Holmes, W.D. [0209], Malawi 23803.000
Holmes, W.D. [0209], Zambia 36565.000
Schaijes, M. [1655], Congo, DRC 47555.000
Nutt, W.H. [s.n.], Zambia K000416078

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 266 (1898)

Accepted by

  • 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 Tropical East Africa

  • Kraenzl., Orch. Gen. et Sp. 1: 676 (1899).
  • Rolfe in Flora of Tropical Africa 7: 266 (1898).
  • Schltr. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 31: 196 (1901).
  • Schltr. in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 53: 525 (1915).

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
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 2021. 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 2021. 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