Orchidaceae
Satyrium

Satyrium microcorys Schltr.

First published in Bot. Jahrb. Syst. 53: 533 (1915)
This species is accepted
The native range of this species is Tanzania to Zambia. It is a tuberous geophyte and grows primarily in the subtropical biome.

Descriptions

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

Morphology General Habit
Slender terrestrial herb 10–40 cm tall; tubers to 2 × 2 cm, ovoid, woolly.
Morphology Stem
Stem leafy.
Morphology Leaves
Leaves 5–8; the lowermost 1–2 leaves sheathing; the next 2 leaves spreading, borne near stem base, 4–9 × 2–4 cm, elliptical or lanceolate; the upper leaves bract-like, spaced along stem.
Morphology Reproductive morphology Inflorescences
Inflorescence 4–12 × 1–1.5 cm, fairly densely several- to many-flowered.
Morphology Reproductive morphology Flowers
Flowers cream-yellow or yellow-green.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 5 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts to 15 mm long at base of inflorescence, reflexed.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals curled under, joined to each other and lip in basal third.
Morphology Reproductive morphology Flowers Calyx
Median sepal 3–4 × 0.5 mm, oblong-oblanceolate, rounded; lateral sepals slightly longer and wider, oblique.
Morphology Reproductive morphology Flowers Corolla
Petals similar to median sepal but slightly shorter and narrower.
Morphology Reproductive morphology Flowers Labellum
Lip 3–5 mm long, ellipsoid, the apex slightly reflexed, fleshy with a narrow mouth.
Morphology Reproductive morphology Flowers Spur
Spurs 3–4 mm long, bulbous at apex, parallel to ovary.
Morphology Reproductive morphology Flowers Column
Column c. 3 mm high, curved; stigma 1.5 × 2 mm; rostellum mid-lobe spade-shaped from a narrow base, much longer than the triangular side lobes.
[FZ]

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

Morphology General Habit
A terrestrial herb 1–4 dm. high, glabrous except for the roots.
Vegetative Multiplication Tubers
Tubers ellipsoid to fusiform, 1–2 cm. long, 4–11 mm. in diameter, ± tomentose.
Morphology Roots
Roots slender, flexuous, pubescent.
Morphology Stem
Stem erect, slender, with 2 leaves towards the base and several sheaths.
Morphology Leaves
Leaves altogether 5–8, the lowermost 1–2 sheath-like, short, the middle 2 spreading, elliptical to lanceolate, acute, up to 2.5–13 cm. long and 1–4.5 cm. broad, the upper ones adpressed, sheath-like, lanceolate, acute, the largest 2.5–6.5 cm. long, 7–17 mm. broad.
Morphology Reproductive morphology Inflorescences
Inflorescence cylindrical, 5–14 cm. long, 1–2 cm. in diameter, loosely to rather densely 6- to many-flowered; bracts reflexed, broadly lanceolate, 5–15 (–20) mm. long.
Morphology Reproductive morphology Flowers
Flowers curved outwards, sessile, white, cream or greenish-yellow, sometimes fragrant; ovary 5–6 mm. long.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals decurved, united to one another and to the lip in their basal third.
Morphology Reproductive morphology Flowers Calyx
Intermediate sepal oblanceolate-oblong, rounded, ± 3 mm. long and 0.5 mm. broad; laterals obliquely elliptical-oblanceolate, obtuse, 3–4 mm. long, scarcely 1 mm. broad.
Morphology Reproductive morphology Flowers Corolla
Petals as intermediate sepal but smaller; all tepals ± ciliolate at apex.
Morphology Reproductive morphology Flowers Labellum
Lip fleshy, ellipsoid and hooded, the apex very shortly recurved, 4–5 mm. long.
Morphology Reproductive morphology Flowers Spur
Spurs parallel to the ovary, slender, 3.5–5 mm. long.
Morphology Reproductive morphology Flowers Column
Column curved, ± 3 mm. high; stigma erect, transversely oblong, ± retuse, 1–5 mm. high and 2 mm. broad, rostellum 3-lobed, middle lobe much longer than the triangular side lobes, broadly shovel-shaped from a narrow base.
Habitat
Upland grassland, stony slopes, rock ledges and in pumice detritus; 1000- 2700 m.
Distribution
T7 T8
[FTEA]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: low confidence
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/103430231/103430524

Conservation
DD - data deficient
[IUCN]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • 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.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0