Violaceae
Rinorea

Rinorea angustifolia (Thouars) Baill.

First published in Bull. Mens. Soc. Linn. Paris 1: 582 (1886)
This species is accepted
The native range of this species is Madagascar. It is a shrub or tree and grows primarily in the wet tropical biome.

Descriptions

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]

Violaceae, C. Grey-Wilson. Flora of Tropical East Africa. 1986

Morphology General Habit
Shrub or small tree to 10 m. tall; stems glabrous or pubescent at first.
Morphology Leaves
Leaf-lamina narrowly elliptic to oblong-elliptic, oblong or oblong-ovate, 2.3–13 cm. long, 1–4.8 cm. wide, the base ± cuneate, subrounded to subcordate, the apex obtuse to acuminate, glabrous or with a few hairs on the midrib above and/or beneath, margin serrate-crenate to subentire, lateral veins 5–11 pairs; petiole 1–9 mm. long, glabrous or pubescent.
Morphology Reproductive morphology Inflorescences
Inflorescence a simple axillary raceme carrying 1–20 flowers usually, occasionally 2 racemes per node; flowers white or yellowish white, fragrant, erect to nodding; peduncles 2–7 cm. long, brownish, densely pubescent; bracts ovate to ovate-oblong, 0.5–2 mm. long, ribbed, pubescent, persistent; pedicels slender, 4–15 mm. long, pubescent.
Morphology Reproductive morphology Flowers Calyx
Sepals ovate to oblong, 1.5–2.5 mm. long, ribbed, pubescent in the middle, margin usually ciliate.
Morphology Reproductive morphology Flowers Corolla
Petals lanceolate, 3–6.5 mm. long, acute, strongly reflexed soon after anthesis, glabrous or pubescent in the centre on the exterior, sometimes ciliate towards the top.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2.5–6 mm. long, the short filaments completely fused into a ring with a free ciliate margin; connective-appendage lanceolate, acute, decurrent, ± twice as long as the anther; thecal appendages 2, sometimes solitary, linear-lanceolate, short.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary usually pubescent; style 2.5–4 mm. long.
Morphology Reproductive morphology Fruits
Capsule subglobose, 6–9 mm. long, poorly 3-lobed, sparsely to moderately pubescent or glabrous.
[FTEA]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/146449084/146449086

Conservation
LC - least concern
[IUCN]

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

    • 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 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