Orchidaceae

Jumellea Schltr.

First published in Orchideen Beschreib. Kult. Zücht.: 609 (1914)
This genus is accepted
The native range of this genus is Kenya to S. Africa, W. Indian Ocean.

Descriptions

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

Morphology General Habit
Epiphytic or lithophytic monopodial herbs.
Morphology Stem
Stem long or short; leaves usually distichous, linear or ligulate, obtusely 2-lobed at the apex.
Morphology Reproductive morphology Inflorescences
Inflorescence axillary, single-flowered (rarely 2-flowered); peduncle short, ovary with a slender pedicel.
Morphology Reproductive morphology Flowers
Flowers resupinate, white, usually scented.
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal usually recurved; lateral sepals ± joined under the spur by the base of the anterior margin.
Morphology Reproductive morphology Flowers Tepal
Tepals narrow, acute or acuminate; lip entire, usually rhombic, oblanceolate or narrowly ovate, spurred at the base, the spur usually long and slender.
Morphology Reproductive morphology Flowers Column
Column short with a short foot, and with 2 parallel arms joined on the inner side to the lateral sepals and petals, giving these a characteristic twist; rostellum short, emarginate; anther cucullate; pollinia 2, each joined by a short stipes to a large viscidium.
Morphology Reproductive morphology Fruits
Capsule narrow, fusiform or cylindrical, opening by a single slit.
[FZ]

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

Morphology General Habit
Epiphytic or lithophytic, entirely glabrous monopodial herbs
Morphology Stem
Stems abbreviated or elongated, simple or occasionally branched
Morphology Leaves
Leaves linear to ligulate, equally or unequally bilobed at apex, coriaceous or fleshy, erect to spreading
Morphology Reproductive morphology Inflorescences
Inflorescence 1(–2)-flowered, axillary, peduncle abbreviated; bracts small, mostly imbricate, scarious
Morphology Reproductive morphology Flowers
Flowers resupinate, white, small or medium-sized, often scented; ovary with a long filiform pedicel
Morphology Reproductive morphology Flowers Perianth
Sepals and petals free, narrow, acute to acuminate, often undulate at the base, spreading
Morphology Reproductive morphology Flowers Calyx
Dorsal sepal usually recurved
Morphology Reproductive morphology Flowers Corolla
Petals connivent with base of lip
Morphology Reproductive morphology Flowers Labellum
Lip entire, spurred at base, flat or conduplicate, rhombic, narrowly elliptic or ovate, acute to acuminate, attenuate or constricted at the base; disc usually carinate; spur usually long, filiform, retrorse or antrorse
Morphology Reproductive morphology Flowers Column
Column short, porrect, with 2 conspicuous stelidia and a short foot; rostellum short, emarginate; anther cucullate, truncate or retuse, not beaked; pollinia 2, globose or broadly ellipsoid, each attached by a short stipes to a large viscidium
Morphology Reproductive morphology Fruits
Capsule narrowly cylindrical, dehiscing by means of a single fissure.
[FTEA]

Sources

  • 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

  • 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