Bourreria petiolaris (Lam.) Thulin

First published in Nordic J. Bot. 7: 414 (1987)
This species is accepted
The native range of this species is SE. Kenya to Mozambique, Madagascar, Mauritius. It is a shrub or tree and grows primarily in the seasonally dry 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]

Boraginaceae, E. S. Martins (Trichodesma by R. K. Brummit). Flora Zambesiaca 7:4. 1990

Morphology General Habit
A shrub or sometimes a small tree up to 7(10) m. high, glabrous; branches greyish or brownish, usually slender.
Morphology Leaves
Leaves alternate; petiole 1.5–5.5(8) cm. long, slender, deeply canaliculate; lamina 5–11(14) x 2–6(8) cm., lanceolate or ovate to oblong-obovate, acute to rounded but usually apiculate at apex, acute to obtuse and very often asymmetrical at base, with entire margins, papery to almost leathery, brown and ochre-coloured when dry, with 6–9 secondary nerves on each side of the midrib, net-veined.
Morphology Reproductive morphology Flowers
Flowers arranged in pedunculate, bracteate, lax, terminal but apparently lateral panicles or corymbs (2.5)4–10 cm. long, with spreading branches; peduncle, rhachis, branches and bracts (falling) sometimes with scattered short hairs; pedicels short, joined at the apex.
Morphology Reproductive morphology Flowers Calyx
Calyx 3–4 mm. long with triangular lobes as long as the tube, glabrous except on the margins, rarely pubescent.
Morphology Reproductive morphology Flowers Corolla
Corolla 4–5 mm. long, glabrous, white; tube 3.5–4.0 mm. long, broadly campanulate; lobes 1.0–1.5 x 1.4–2.0 mm., rounded, erect to spreading.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens inserted about the middle of the corolla tube, included; anthers c. 1 mm. long; filaments as long as the anthers.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary c. 1.2 mm. long, conical; style 2.0–2.5 mm. long, subentire, included; stigmas large.
Morphology Reproductive morphology Fruits
Fruit 4–5 mm. long, a little depressed, topped by the persistent style; pyrenes with 6–8 lamellae.
[FZ]

Boraginaceae, B. Verdcourt. Flora of Tropical East Africa. 1991

Morphology General Habit
Shrub or tree 0.3–7.5(–12) m. tall, stated occasionally to be ± scandent; stems often hollow, pale brown, the older nodular with petiole-bases; epidermis white, peeling to reveal purple-brown beneath and dense lenticels; lower bark smooth, grey-brown or sometimes grey, rough and longitudinally fissured.
Morphology Leaves
Leaf-blades subcoriaceous, oblong- elliptic to obovate-elliptic, 1–14.5 cm. long, 0.7–7.5 cm. wide, rounded or ± acute at the apex, ± cuneate to rounded at the base, glabrous (see note) or almost so; petioles slender, 0.5–5.2 cm. long.
Morphology Reproductive morphology Flowers
Flowers sweetly scented.
Morphology Reproductive morphology Inflorescences
Cymes lax, ± pendulous, up to ± 15 cm. long; peduncles and secondary peduncles 1–2.5(–5) cm. long; pedicels 1–2 mm. long; axes ± pubescent.
Morphology Reproductive morphology Flowers Calyx
Calyx 3.5 mm. long, glabrous to pubescent outside, pubescent inside, divided into narrowly triangular lobes 1.5–2 mm. long, 1–2 mm. wide.
Morphology Reproductive morphology Flowers Corolla
Corolla waxy white, campanulate; tube 3–5 mm. long; lobes reflexed, broadly triangular or ovate with rounded apex, 0.5–1.5 mm. long.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers mauve.
Morphology Reproductive morphology Flowers Gynoecium Style
Style 2.5 mm. long, unbranched with ± capitate ± bifid green stigma or style occasionally stated to be very shortly bifid.
Morphology Reproductive morphology Fruits
Fruits orange-yellow to red, globose, ± 6 mm. diameter; pyrenes 1/4-spherical, 4 mm. long, 2.8 mm. wide; outer curved face with close ridges bearing overlapping wings, the inner faces ± smooth.
Habitat
Coastal dry lowland forest, e.g. Cynometra, Manilkara, Afzelia, littoral scrub, coral cliffs, also Guettarda, Cordia subcordata, etc., association just above high-tide mark and on sand-dunes; 0–30(–660) m. (see note), but mainly at sea-level
Distribution
K7 P T3 T6 T8 Z
[FTEA]

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

    • '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/
  • 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
  • Kew Science Photographs

    • Copyright applied to individual images