Malvaceae
Triumfetta

Triumfetta amuletum Sprague

First published in Bull. Herb. Boissier, sér. 2, 5: 702 (1905)
This species is accepted
The native range of this species is Tanzania to S. Tropical Africa. It is a subshrub and grows primarily in the seasonally dry tropical biome.

Descriptions

Tiliaceae, C. Whitehouse, M. Cheek, S. Andrews & B. Verdcourt. Flora of Tropical East Africa. 2001

Morphology General Habit
Creeping or prostrate subshrub with many hairy stems to 4 mm thick and up to 1.5 m long from a persistent woody rootstock.
Morphology Leaves
Leaves broader than long, rounded to rhombic, sometimes shallowly 3-lobed, 8–9 cm long, 9.5–12 cm wide, apex acute to obtuse, base obtuse, rarely cordate, margin shallowly to coarsely, singly to doubly crenate-serrate, sparsely stellate-pubescent above, stellate-tomentose beneath; petiole softly hairy, 5–50 mm long, sometimes with a groove above, often with 3–6 pairs of raised black glands 1 mm in diameter clustered at upper end; stipules triangular to ovate, ± 5 mm long, 2–3 mm broad.
Morphology Reproductive morphology Inflorescences
Inflorescences of 2–3-flowered cymes, 1–2 at each node, subopposite the leaf; peduncle 1.5–12 mm; bracts triangular, ± 4 mm long, ± 1.5 mm broad; pedicels 1–4 mm long.
Morphology Reproductive morphology Flowers Calyx
Sepals lanceolate, 10–12 mm long, 1.5 mm broad, completely covered in white peltate scales outside, the apex with 2 blunt, dark, glabrous prongs 0.5–1 mm long.
Morphology Reproductive morphology Flowers Corolla
Petals spathulate, 7–8 mm long and 2 mm wide distally, the proximal 1 mm densely hairy; stamens 20–27; ovary covered in large tubercles, each with 1–2 bristles at the tip.
Morphology Reproductive morphology Fruits
Fruit indehiscent, 20–25 mm diameter, completely covered with ± 60 spines each 5 mm long, 2.5 mm wide at the base, woody, glabrous.
Figures
Fig. 11/1–3.
Habitat
Grassland and open Brachystegia woodland on loam or sand; 1200–1500 m
Distribution
T2 T7
[FTEA]

Tiliaceae, H. Wild. Flora Zambesiaca 2:1. 1963

Morphology General Habit
Prostrate perennial with stellate-pubescent trailing sterns up to 1 m. long or ascending to 1·2 m.
Morphology Leaves
Leaf-lamina 7–10 × 3·5–11 cm., very broadly ovate or sub-circular, densely stellate-pubescent above, subtomentose below, apex subacute, rounded or broadly cuneate at the base, margin irregularly crenate, 5-nerved from the base; petiole up to 5 cm. long, somewhat channelled above, stellate-pubescent, with 3–5 pairs of discoid glands c. 1 mm. in diam. just below the lamina; stipules 5–6 mm. long, lanceolate-acuminate to broadly triangular, setose-pubescent.
Morphology Reproductive morphology Inflorescences
Inflorescences of leaf-opposed cymes 1–2 together on short stout pubescent peduncles up to 5 mm. long.
Morphology Reproductive morphology Flowers
Flowers crowded several together, on short pedicels or subsessile; bracts up to 4 mm. long, broadly lanceolate to lanceolate, setose pubescent.
Morphology Reproductive morphology Flowers Calyx
Sepals 10–12 mm. long, linear, with crowded scales outside, and a subapical blackish 2-dentate horn 1–1·5 mm. long.
Morphology Reproductive morphology Flowers Corolla
Petals yellow, c. 1 × 0·5 cm., obovate, narrowing rather abruptly into a basal claw which is ciliate at the margins.
Morphology Reproductive morphology Flowers Androgynophore
Androgynophore with suborbicular glands; annulus with a shortly ciliate margin.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary tuberculate with the tubercles terminated by 2 or 3 short setae, apparently 10-locular by the intrusion of 5 additional false septa.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens c. 25, c. 8 mm. long; style up to 5 mm. long, slender, glabrous.
Morphology Reproductive morphology Fruits
Fruit blackish when ripe, c. 2 cm. in diam., globose, covered with hard conical glabrous processes or spinose bosses c. 5 mm. long.
[FZ]

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]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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

    • 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 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