Periploca linearifolia Quart.-Dill. & A.Rich.

Goyder, D. J., Gilbert, M. G. & Venter, H. J. T. (2020). Apocynaceae (part 2). In: M. A. García (ed.), Flora Zambesiaca, Vol. 7(3). Royal Botanic Gardens, Kew.

Type: Ethiopia, Adowa, Quartin-Dillon & Petit s.n. (P holotype, K).
Morphology General Habit: Large liana
Morphology Stem: Stems up to 20 m long or more, glabrous, bark greyish-brown
Morphology Leaves: Leaves glabrous, shortly petiolate, leathery; blade 3–7(9) cm × 2–5 mm, linear, linear-ovate to very narrowly ovate, long attenuate, base cuneate or obtuse
Morphology Reproductive morphology Inflorescences: Inflorescences paniculate, usually many-flowered; peduncles 1–2 cm long; pedicels 2–6 mm long; bracts ovate, ± 1 mm long
Morphology Reproductive morphology Flowers Calyx: Sepals 1 × ± 1 mm, broadly ovate to sub-orbicular, apex obtuse
Morphology Reproductive morphology Flowers Corolla: Corolla sub-herbaceous; tube ± 0.5 mm long; lobes 3–4 × 1–2 mm, linear-ovate to very narrowly ovate, obtuse to retuse, above violet with dark glabrous centre, white-villous on margin and apex
Morphology Reproductive morphology Flowers Corona: Corona lobes violet, puberulous, tri- segmented; central segment 3–4 mm long, filiform, puberulous, lateral segments fleshy ovoid- deltoid and fused to inner base of corolla lobes
Morphology Reproductive morphology Flowers Androecium Stamens: Stamens ± 1 mm long, anthers hastate
Morphology Reproductive morphology Flowers Gynoecium Style: Style ± 0.5 mm long, style-head ± 1 mm long
Morphology Reproductive morphology Seeds: Seeds black, 7–9 mm long, coma 2.5–3 cm long. Follicles horizontally divergent, 6–12(16) cm × 4–5 mm, cylindrical-ovoid
Distribution: Zambia, Malawi. Also in Burundi, D.R. Congo, Ethiopia, Kenya, Sudan, Tanzania and Uganda.
Ecology: In bamboo and podocarp forest, riparian scrub forest, open dry montane forest and semi-deciduous dry forest; 700–2800 m.

[FZ]

Apocynaceae (part 2), David Goyder, Timothy Harris, Siro Masinde, Ulrich Meve, Johan Venter. Flora of Tropical East Africa, 2012

Morphology General Habit: Large liana.
Morphology Stem: Stems up to 20 m long or more, glabrous, bark greyish-brown
Morphology Leaves: Leaves shortly petiolate, leathery; blade linear to very narrowly ovate, 3–7(–9) × 0.2–0.5 cm, long attenuate, base cuneate or obtuse, glabrous
Morphology Reproductive morphology Inflorescences: Inflorescences panicle-like cymes, usually many-flowered.
Morphology Reproductive morphology Inflorescences Peduncles: Peduncles 1–2 cm long.
Morphology Reproductive morphology Inflorescences Bracts: Bracts ovate, ± 1 mm long.
Morphology Reproductive morphology Flowers Pedicel: Pedicels 2–6 mm long
Morphology Reproductive morphology Flowers Calyx: Sepals broadly ovate to sub-orbicular, ± 1 × 1 mm, apex obtuse.
Morphology Reproductive morphology Flowers Corolla: Corolla sub-herbaceous; tube ± 0.5 mm long; lobes violet with dark glabrous centre above, linear-ovate to very narrowly ovate, 3–4 × 1–2 mm, obtuse to retuse, white-villous on margin and apex
Morphology Reproductive morphology Flowers Corona: Corona lobes violet, puberulous, trisegmented; central segments 3–4 mm long, filiform, puberulous, lateral segments fleshy ovoid-deltoid and fused to inner base of corolla lobes
Morphology Reproductive morphology Flowers Androecium Stamens: Stamens ± 1 mm long
Morphology Reproductive morphology Flowers Gynoecium Style: Style ± 0.5 mm long, style-head ± 1 mm long
Morphology Reproductive morphology Fruits: Follicles horizontally divergent, cylindrical-ovoid, 6–12(–16) cm long, 4–5 mm diameter
Morphology Reproductive morphology Seeds: Seeds black, 7–9 mm long, coma 2.5–3 cm long
Figures: Fig 37, p 119
Ecology: Bamboo forest, podocarp forest, riparian scrub forest, open dry montane forest and semideciduous dry forest; 700–2800 m
Distribution: Flora districts: U1 U3 K1 K3 K4 K5 K6 T2 T3 T4 T6 T7 T8 Range: Also known from South Sudan, Ethiopia, Congo-Kinshasa, Burundi, Malawi and Zambia

[FTEA]

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]

Use: The milksap is fed to cows to enhance lactation; very strong twine, rope and fish nets are woven from the stem bark; tea is brewed from the roots.

[FZ]

Use: The latex is fed to cows to enhance lactation; very strong twine, rope and fish nets are woven from the stem bark; the Masai brew a tea from the roots

[FTEA]

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 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

Descriptions

Uses

Sources

Angiosperm Extinction Risk Predictions v1

Flora Zambesiaca

Flora of Tropical East Africa

Herbarium Catalogue Specimens

Kew Backbone Distributions

Kew Names and Taxonomic Backbone