Loranthaceae
Agelanthus

Agelanthus keilii (Engl. & K.Krause) Polhill & Wiens

First published in J.-P.Lebrun & A.L.Stork, Énum. Pl. Fleurs Afr. Trop. 2: 164 (1992)
This species is accepted
The native range of this species is S. Rwanda to NW. Tanzania. It is a hemiparasitic epiphyte and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/70475829/99899652

Conservation
EN - endangered
[IUCN]

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: threatened. Confidence: low confidence
[AERP]

Loranthaceae, Polhill & D. Wiens. Flora of Tropical East Africa. 1999

Morphology General Habit
Shrub flowering mostly on relatively short lateral branches; branchlets slightly flattened, puberulous with short spreading hairs, soon glabrescent.
Morphology Leaves
Leaves subopposite; petiole 5–15 mm. long; lamina thinly coriaceous, somewhat glaucous, lanceolate to ovate-elliptic or oblong-elliptic, 5–11.5 cm. long, 1–4 cm. wide, acute to obtuse at the apex, cuneate at the base, glabrous except for a few scattered hairs near the base, with 4–6 pairs of lateral nerves, the lower ones ± strongly ascending.
Morphology Reproductive morphology Inflorescences
Umbels 8–12-flowered; peduncle 7–10 mm. long, covered with stiff spreading hairs; pedicels 6–8 mm. long, similarly hairy; bract-limb ovate-triangular, 1–2 mm. long.
Morphology Reproductive morphology Flowers Receptacle
Receptacle 1.8–2 mm. long, minutely puberulous to subglabrous.
Morphology Reproductive morphology Flowers Calyx
Calyx 0.3–0.5 mm. long, shortly and broadly toothed.
Morphology Reproductive morphology Flowers Corolla
Corolla 4–4.5 cm. long, dull yellow to red with mauve tip, minutely puberulous on the lobes, subglabrous to sparsely puberulous on the tube (more conspicuous on constriction); apex of bud narrowly oblong-elliptic, 5–6 mm. long, 2.5 mm. in diameter, slightly ribbed; basal swelling ovoid-globose, 6 mm. long, 4 mm. in diameter, narrowed for 2–3 mm. above; lobes erect, 9 mm. long, the upper expanded part linear-elliptic, 5–5.5 mm. long, 1 mm. wide, hardened inside, keeled outside.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens inflexed; tooth 0.5 mm. long; anthers 2.5–3 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Style with a neck 2.5–3 mm. long; stigma capitate, 0.7 mm. across.
Morphology Reproductive morphology Fruits
Berry not seen.
Habitat
On Ficus; 1350–1450 m.
Distribution
T4
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/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