Eulophia rhodesiaca Schltr.

First published in R.E.Fries, Wiss. Erg. Schwed. Rhodesia-Kongo-Exp. 1911-1912, 1: 248 (1916)
This species is accepted
The native range of this species is Tanzania to S. Tropical Africa. It is a pseudobulbous geophyte 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
Slender terrestrial herb 13–30 cm tall.
Vegetative Multiplication Pseudobulbs
Perennating organs mostly subterranean, pseudobulbous, 2–3 × 1 cm, conical, with several nodes, set close together in a chain; roots 0.5–2 mm in diameter.
Morphology Leaves
Leaves 2–4, 10–30 cm × 1.5–4.5 mm, linear, grass-like, absent or partly developed at flowering time.
Morphology Reproductive morphology Inflorescences
Inflorescence laxly 1–5-flowered; scape slender and wiry with 1 sheath near base.
Morphology Reproductive morphology Flowers Pedicel and Ovary
Pedicel and ovary 11–17 mm long.
Morphology Reproductive morphology Inflorescences Bracts
Bracts 3–5 mm long, lanceolate, acuminate.
Morphology Reproductive morphology Flowers
Flowers erect, light brown outside, purple-brown inside; petals cream or yellow-green with brownish veins; lip white or mauve-pink with yellow lamellae, the side lobes heavily veined with purple.
Morphology Reproductive morphology Flowers Calyx
Sepals semi-erect, 11–13 × 2.5–3 mm, linear-oblanceolate, acute, the laterals slightly longer than the dorsal.
Morphology Reproductive morphology Flowers Corolla
Petals 8.5–10 × 3.5–4 mm, oblong-elliptic, acute.
Morphology Reproductive morphology Flowers Labellum
Lip 8–10 mm long, 9–12 mm wide, 3-lobed in the apical half; side lobes erect, elliptic; mid-lobe deflexed, c. 5 × 4 mm, suborbicular, obtuse, the margins erose; callus of 3 basal ridges with 3–7 verrucose ridges on the mid-lobe; spur 10–13 mm long, curving forwards, cylindrical from a wide, funnel-shaped base.
Morphology Reproductive morphology Flowers Column
Column 6 mm long; foot 3 mm long.
Morphology Reproductive morphology Fruits
Capsule erect, 16–18 mm long, narrowly ellipsoidal.
[FZ]

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

Morphology General Habit
A terrestrial herb 20–30 cm. tall.
Vegetative Multiplication Pseudobulbs
Perennating organs pseudobulbous, in closely spaced chains, conical, 2–3 cm. tall, 7–10 mm. diameter, 3–4-noded; roots 1.5 mm. diameter.
Morphology Leaves
Leaves 2–4, grass-like, 10–30 cm. long, 3–4.5 mm. wide.
Morphology Reproductive morphology Inflorescences
Inflorescence 2–5-flowered, produced before leaves; peduncle slender, wiry, 1 mm. diameter; rhachis 3.5–7 cm. long; bracts lanceolate, acuminate, 3–5 mm. long.
Morphology Reproductive morphology Flowers
Flowers erect; sepals buff or brown; petals pale yellow-green; lip mauve-pink with a maroon spur; pedicel and ovary 11–17 mm. long.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal linear-oblanceolate, acute, 11–13 mm. long, 2.5–3 mm. wide; lateral sepals similar but slightly longer.
Morphology Reproductive morphology Flowers Corolla
Petals oblong-elliptic, acute, 8.5–10 mm. long, 3.5–4 mm. wide.
Morphology Reproductive morphology Flowers Labellum
Lip 3-lobed in apical half, broadest across basal half, 8–10 mm. long, 9–12 mm. wide; side lobes elliptic; mid-lobe semicircular, obtuse, erose on margin; callus of 3 basal ridges with 3–7 verrucose ridges on mid-lobe in front.
Morphology Reproductive morphology Flowers Spur
Spur incurved, cylindrical, 12–13 mm. long.
Morphology Reproductive morphology Flowers Column
Column 6 mm. long; foot 3 mm. long.
Morphology Reproductive morphology Fruits
Fruit erect, narrowly ellipsoidal, 16–18 mm. long.
Habitat
In deciduous woodland or on rocks; 1400–1700 m.
Distribution
T7
[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: not threatened. Confidence: confident
[AERP]

General Description

A terrestrial herb 20–30 cm. tall. Perennating organs pseudobulbous, in closely spaced chains, conical, 2–3 cm. tall, 7–10 mm. diameter, 3–4-noded; roots 1.5 mm. diameter. Leaves 2–4, grass-like, 10–30 cm. long, 3–4.5 mm. wide. Inflorescence 2–5-flowered, produced before leaves; peduncle slender, wiry, 1 mm. diameter; rhachis 3.5–7 cm. long; bracts lanceolate, acuminate, 3–5 mm. long. Flowers erect; sepals buff or brown; petals pale yellow-green; lip mauve-pink with a maroon spur; pedicel and ovary 11–17 mm. long. Dorsal sepal linear-oblanceolate, acute, 11–13 mm. long, 2.5–3 mm. wide; lateral sepals similar but slightly longer. Petals oblong-elliptic, acute, 8.5–10 mm. long, 3.5–4 mm. wide. Lip 3-lobed in apical half, broadest across basal half, 8–10 mm. long, 9–12 mm. wide; side lobes elliptic; mid-lobe semicircular, obtuse, erose on margin; callus of 3 basal ridges with 3–7 verrucose ridges on mid-lobe in front; spur incurved, cylindrical, 12–13 mm. long. Column 6 mm. long; foot 3 mm. long. Fruit erect, narrowly ellipsoidal, 16–18 mm. long.

Slender terrestrial herb 13–30 cm tall.Perennating organs mostly subterranean, pseudobulbous, 2–3 × 1 cm, conical, with several nodes, set close together in a chain; roots 0.5–2 mm in diameter.Leaves 2–4, 10–30 cm × 1.5–4.5 mm, linear, grass-like, absent or partly developed at flowering time.Inflorescence laxly 1–5-flowered; scape slender and wiry with 1 sheath near base.Pedicel and ovary 11–17 mm long; bracts 3–5 mm long, lanceolate, acuminate.Flowers erect, light brown outside, purple-brown inside; petals cream or yellow-green with brownish veins; lip white or mauve-pink with yellow lamellae, the side lobes heavily veined with purple.Sepals semi-erect, 11–13 × 2.5–3 mm, linear-oblanceolate, acute, the laterals slightly longer than the dorsal.Petals 8.5–10 × 3.5–4 mm, oblong-elliptic, acute.Lip 8–10 mm long, 9–12 mm wide, 3-lobed in the apical half; side lobes erect, elliptic; mid-lobe deflexed, c. 5 × 4 mm, suborbicular, obtuse, the margins erose; callus of 3 basal ridges with 3–7 verrucose ridges on the mid-lobe; spur 10–13 mm long, curving forwards, cylindrical from a wide, funnel-shaped base.Column 6 mm long; foot 3 mm long.Capsule erect, 16–18 mm long, narrowly ellipsoidal.

Habitat

Open miombo, and dry rocky hillsides

In deciduous woodland or on rocks; 1400–1700 m.

[E-EM]

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
  • 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.
  • 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