Orchidaceae
Angraecum

Angraecum calceolus Thouars

First published in Nouv. Bull. Sci. Soc. Philom. Paris 1: Tabl. Angorkis (1809)
This species is accepted
The native range of this species is Mozambique to W. Indian Ocean. It is an epiphytic subshrub and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Erect epiphytic herb with a woody stem to c. 9 cm long.
Morphology Roots
Roots numerous, c. 1.5 mm in diameter.
Morphology Leaves
Leaves up to 16, 17–22 × 1.5–2.5 cm, ligulate, narrowing to a petiole-like base, and very unequally 2-lobed at the apex with one lobe almost absent, the other c. 6 mm long and obtuse.
Morphology Leaves Leaf sheaths
Young leaf sheaths sometimes with dark spots.
Morphology Reproductive morphology Inflorescences
Inflorescences 15–24 cm long, up to 5-branched, each branch several-flowered.
Morphology Reproductive morphology Flowers
Flowers pale yellow-green, thin-textured.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 5–6 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts c. 2 mm long.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal 7–8 × 2–4 mm, ovate-lanceolate, acute or acuminate; lateral sepals c. 8 × 1.5 mm, lanceolate, acuminate, rather oblique.
Morphology Reproductive morphology Flowers Corolla
Petals 6 × 1.5–3 mm, lanceolate, acuminate.
Morphology Reproductive morphology Flowers Labellum
Lip c. 7 × 3 mm, including an acumen 2 mm long, very concave, ovate, acuminate; spur 12 mm long, slender, slightly swollen near apex, often ascending.
Morphology Reproductive morphology Flowers Column
Column very short.
[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

  • 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