Orchidaceae
Eulophia

Eulophia macrantha Rolfe

First published in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 62 (1897)
This species is accepted
The native range of this species is S. Tropical Africa. It is a holomycotrophic rhizomatous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

Habitat

Saprophyte associated with species of bamboo

General Description

Robust terrestrial saprophyte 38–100 cm tall.Leaves absent.Inflorescence densely 3–20-flowered; scape yellow, 12 mm in diameter at base, covered with brownish, loose sheaths.Flowers large and showy; sepals and petals creamy-yellow or pale primrose-yellow; lip deep maroon.Sepals 35–50 × 16–26 mm, lanceolate to ovate, acute.Petals 30–40 × 13–18 mm, obovate, acute.Lip 20–35 × 16–22 mm when flattened, densely papillose, 3-lobed; side lobes c. 5 mm long, triangular; mid-lobe 14 × 9 mm, oblong, obtuse; callus of 4 rows of dentate or denticulate lamellae; spur 8–10 mm long, straight, narrowly cylindrical.Column 12–14 mm long.

[E-EM]

Orchidaceae, I. la Croix & P.J. Cribb. Flora Zambesiaca 11:2. 1998

Morphology General Habit
Robust terrestrial saprophyte 38–100 cm tall.
Morphology Leaves
Leaves absent.
Morphology Reproductive morphology Inflorescences
Inflorescence densely 3–20-flowered; scape yellow, 12 mm in diameter at base, covered with brownish, loose sheaths.
Morphology Reproductive morphology Flowers
Flowers large and showy; sepals and petals creamy-yellow or pale primrose-yellow; lip deep maroon.
Morphology Reproductive morphology Flowers Calyx
Sepals 35–50 × 16–26 mm, lanceolate to ovate, acute.
Morphology Reproductive morphology Flowers Corolla
Petals 30–40 × 13–18 mm, obovate, acute.
Morphology Reproductive morphology Flowers Labellum
Lip 20–35 × 16–22 mm when flattened, densely papillose, 3-lobed; side lobes c. 5 mm long, triangular; mid-lobe 14 × 9 mm, oblong, obtuse; callus of 4 rows of dentate or denticulate lamellae; spur 8–10 mm long, straight, narrowly cylindrical.
Morphology Reproductive morphology Flowers Column
Column 12–14 mm long.
[FZ]

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: not threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Eulophiinae: e-monocot.org

    • All Rights Reserved
    • http://creativecommons.org/licenses/by-nc-sa/3.0/

  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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 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