Fabaceae
Micklethwaitia

Micklethwaitia carvalhoi (Harms) G.P.Lewis & Schrire

First published in Kew Bull. 59: 166 (2004)
This species is accepted
The native range of this species is Mozambique. It is a tree and grows primarily in the seasonally dry tropical biome.

Descriptions

Leguminosae, R.K. Brummitt, A.C. Chikuni, J.M. Lock and R.M. Polhill. Flora Zambesiaca 3:2. 2007

Morphology General Habit
Deciduous tree 6–10 m tall; bark grey, smooth.
Morphology Branches
Branchlets brown becoming grey, pubescent, strongly lenticellate.
Morphology Leaves
Leaves paripinnate, in 3(4) pairs; stipules intrapetiolar, early caducous, leaving a low rim between the stem and the petiole; petiole 1.4–2.1 cm long, almost glabrous to pubescent, glabrescent; rachis 3–8 cm long, channelled on the upper surface, glabrous to pubescent; leaflets up to 7.6 × 4 cm, the terminal pair the largest, elliptic to obovate, slightly asymmetric, glabrous to pubescent, the distal side of the midrib pubescent near the base, apex bluntly acuminate, base asymmetrically cuneate with the proximal side expanded, venation slightly prominent on both surfaces; 1–3 resin vesicles near the base of each leaflet.
Morphology Reproductive morphology Flowers
Flowers 8–12, in racemes that are leaf-opposed and appear terminal on short shoots; axis usually unbranched, terete, glabrescent; bracts and bracteoles very early caducous, the bracts c.2 × 0.5 mm, spathulate, with ciliate margins; bracteoles c.1.5 mm long, spathulate; pedicels 1.5–2 cm long, terete.
Morphology Reproductive morphology Flowers Calyx
Sepals 4, 4.5 × 2 mm, ovate, reflexed at anthesis, glabrous.
Morphology Reproductive morphology Flowers Corolla
Petals white, 4–5, 7 × 1.5 mm, narrowly elliptic to narrowly obovate, with a strong midvein.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 8–10; filaments 5.6–6 mm long, glabrous; anthers 2 × 3 mm.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2-ovulate, asymmetrically obovate-elliptic, c.3.5 mm long, glabrous; stipe very short, glabrous; style c.7 mm long, glabrous; stigma capitate.
Morphology Reproductive morphology Fruits
Pod 10–14 × 3.5–4.5 cm, asymmetrically obtriangular, flattened, glabrous, ridged along each side of upper margin, explosively dehiscent; stipe c.8 mm long.
Morphology Reproductive morphology Seeds
Seed c.2.8 × 2.3 × 0.8 cm, very broadly ellipsoidal, flattened, dull brown with a darker rim.
[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: threatened. Confidence: confident
[AERP]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/62494244/62494265

Conservation
VU - vulnerable
[IUCN]

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

  • IUCN Categories

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

  • World Checklist of Vascular plants (WCVP)

    • 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