Orchidaceae
Eulophia

Eulophia quadriloba Schltr.

First published in Ann. Mus. Colon. Marseille, sér. 3, 1: 176 (1913)
This species is accepted
The native range of this species is S. Zimbabwe, E. Eswatini, W. Madagascar, Réunion. It is a pseudobulbous geophyte and grows primarily in the seasonally dry tropical biome.

Descriptions

Distribution

Endémique. Ouest (Secteur Ambongo-Boina): Manongarivo (Ambongo), Perrier 1696.

General Description

Plante de 35 cm. environ de haut; pseudobulbes cylindroconiques, (1,5-2 cm. X 4-0 mm.), rapprochés et bifoliés. Feuilles oblancéolées-linéaires (8-11 cm. X 3-5 mm.), apiculées et graduellement atténuées vers la base en pétiole assez long; articulation nette, à 1 cm. au-dessus de la base; limbe charnu-coriace et plan. Inflorescence simple, à la base du pseudobulbe florigère déjà développé; pédoncule 2 fois plus long que la grappe; grappe lâche, à 8-12 fleurs; bractées lancéolées, petites, ne depassant pas le cinquieme de l'ovaire pedicelle; fleurs petites (1,5-1,7 cm. de long). Sépales et pétales oblongs, obtus, de 4 mm. de long. Labelle (6,3 x 5 mm.) à 4 lobes, les 2 latéraux obliquement carrés et divergents, les 2 antérieurs ovales; 2 courts callus triangulares en avant de l'orifice de l'éperon; éperon cylindrique, un peu épaissi au sommet, obtus et de 5 mm. 5 de long. Colonne à pied court. Ovaire (pédic. incl.) de 11 mm. de long environ.

Habitat

Bois tropophiles, sur sables, non loin de la mer.

[E-EM]

General Description

Terrestrial herb, forming chains of pseudobulbs.Pseudobulbs 1.5–2 cm × 7–8 mm, narrowly conical, covered with sheaths when young, 2-leaved.Roots 2 mm in diameter.Leaves petiolate; petiole 2–3 cm long, articulated 8–12 mm above the apex of the pseudobulb; lamina 6–9 cm × 3–5 mm, narrowly linear, obtuse, tapering gradually into a petiole.Inflorescence 16–24 cm tall, simple or with 1–2 branches, several-flowered; scape with 2–3 bracts up to 2 cm long.Flowers yellow.Pedicel and ovary 10–14 mm long; bracts 2 mm long.Sepals and petals 3–4 × 2–2.5 mm, oblong, obtuse; lip 6.5–8 × 5–5.5 mm, 4-lobed, with 2 short triangular calli in the mouth of the spur; side lobes rounded, erect; anterior lobes reflexed, suborbicular to obliquely oblong, truncate, slightly divergent; spur 5–7 mm long, swollen at the apex.Column c. 2 mm long with a short foot.

Habitat

In rich humus in shade of riverine and gully forest

[E-EM]

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]

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

Morphology General Habit
Terrestrial herb, forming chains of pseudobulbs.
Vegetative Multiplication Pseudobulbs
Pseudobulbs 1.5–2 cm × 7–8 mm, narrowly conical, covered with sheaths when young, 2-leaved.
Morphology Roots
Roots 2 mm in diameter.
Morphology Leaves
Leaves petiolate; petiole 2–3 cm long, articulated 8–12 mm above the apex of the pseudobulb; lamina 6–9 cm × 3–5 mm, narrowly linear, obtuse, tapering gradually into a petiole.
Morphology Reproductive morphology Inflorescences
Inflorescence 16–24 cm tall, simple or with 1–2 branches, several-flowered; scape with 2–3 bracts up to 2 cm long.
Morphology Reproductive morphology Flowers
Flowers yellow.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 10–14 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 2 mm long.
Morphology Reproductive morphology Flowers Perianth
Sepals and petals 3–4 × 2–2.5 mm, oblong, obtuse; lip 6.5–8 × 5–5.5 mm, 4-lobed, with 2 short triangular calli in the mouth of the spur; side lobes rounded, erect; anterior lobes reflexed, suborbicular to obliquely oblong, truncate, slightly divergent; spur 5–7 mm long, swollen at the apex.
Morphology Reproductive morphology Flowers Column
Column c. 2 mm long with a short foot.
[FZ]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Eulophiinae: e-monocot.org

    • All Rights Reserved

  • 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 2026. 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 2026. 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