Orchidaceae
Eurychone

Eurychone rothschildiana (O'Brien) Schltr.

First published in Beih. Bot. Centralbl. 36(2): 135 (1918)
This species is accepted
The native range of this species is W. Tropical Africa to Uganda. It is an epiphytic subshrub and grows primarily in the wet tropical biome.

Descriptions

Orchidaceae, V. S. Summerhayes. Flora of West Tropical Africa 3:1. 1968

Morphology Reproductive morphology Flowers Tepal
Tepals white or greenish
Morphology Reproductive morphology Flowers Corolla
Lip white with green centre and chocolate blotch at base.
[FWTA]

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

Morphology General Habit
An epiphytic herb.
Morphology Stem
Stem covered in persistent leaf-sheaths, producing many long roots at the nodes, 2–8 cm. long.
Morphology Leaves
Leaves 3–8, broadly oblong-elliptic or obliquely ovate-elliptic, unequally and subacutely bilobed at apex, margin undulate, thinly coriaceous, sheath 4–10 mm. long, lamina 6–21 cm. long, 1.5–7 cm. broad.
Morphology Reproductive morphology Inflorescences
Inflorescence laxly 2–6(–12)-flowered, deflexed or pendulous; peduncle and rhachis 3–9 cm. long; bracts triangular-ovate to ovate, obtuse, the upper closely appressed to the pedicellate ovary, 2–5 mm. long.
Morphology Reproductive morphology Flowers
Flowers scented of Lily-of-the-Valley (Convallaria majalis), with translucent white tepals, flushed and veined pale green; lip white with dark green disc and veins, with a chocolate-brown to purple area at the spur-entrance. Spur greenish brown to reddish pink; column pale green; anther cream or pale greenish yellow; pedicellate ovary curved, 10–12 mm. long. Sepals and petals acute or apiculate.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal oblong-elliptic, 20–23(–25) mm. long, 5.5–7 mm. broad; laterals narrowly elliptic or oblong-elliptic, slightly curved, 22–25 mm. long, 6–7 mm. broad.
Morphology Reproductive morphology Flowers Corolla
Petals oblong or oblong-elliptic, 18–23 mm. long, 6.5–10 mm. broad.
Morphology Reproductive morphology Flowers Labellum
Lip ovate in outline, entire, infundibuliform, margin undulate, erose, retuse to emarginate, with a mucro in the sinus, 2–2.7 cm. long, 2–2.5 cm. broad.
Morphology Reproductive morphology Flowers Spur
Spur conical at base, constricted at middle, the distal portion abruptly dilated, laterally compressed and geniculate, obtuse, 2–2.5 cm. long.
Morphology Reproductive morphology Flowers Column
Column 8–10 mm. long, 6–7 mm. broad; anther 4 mm. long, 3 mm. broad.
Figures
Pl. 7. Fig. 145.
Habitat
Forest, in shade; 1100–1200 m.
Distribution
U1 U4
[FTEA]

Sources

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2023. 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 2023. 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