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  1. Family: Acanthaceae Juss.
    1. Genus: Ruellia Plum. ex L.
      1. Ruellia linearibracteolata Lindau

        This species is accepted, and its native range is NE. Tropical Africa to Kenya, Yemen, Pakistan.

    [FTEA]

    Acanthaceae (part 2), Kaj Vollesen. Flora of Tropical East Africa. 2008

    Type
    Type: Ethiopia, Ganale, Ruspoli & Riva 1152 (FT, holo.)
    Habit
    Shrubby perennial herb or shrub to 0.5(–1) m tall; young stems glabrous except often with long broad curly glossy hairs to 3 mm long near nodes
    Leaves
    Leaves with petiole 0–10 mm long, with long broad curly glossy hairs to 3 mm long; lamina narrowly ovate to ovate or elliptic, largest 2.5–8.5 × 0.6–2.2 cm, apex acute, base attenuate, decurrent on petiole, pubescent or sparsely so, densest along veins, margin distinctly ciliate
    Flowers
    Flowers solitary or in 3-flowered axillary dichasia; pedicels 0.5–1.5 mm long, glabrous to puberulous; bracteoles (bracts in cymes) narrowly ovate to ovate, 10–20 × 3–8 mm
    Calyx
    Calyx 6–11 mm long, divided to 3–5 mm from base (i.e. normally about half way), with ciliate lobes, otherwise glabrous or with a few hairs along ribs; lobes triangular or narrowly so
    Corolla
    Corolla falling early in the morning, pale mauve to purple, with darker lines in throat; tube 15–17 mm long of which the basal cylindric part 4–5 mm and the throat 11–12 mm long; lobes 8–11 × 7–10 mm, ovate-elliptic or broadly so, with entire to crenate margin. Stamens included in throat, didynamous, anthers not overlapping; filaments fused for ± 0.5 mm at base, free parts 1–3 and 4–6 mm long; anthers ± 2 mm long
    Ovary
    Ovary with sparse appressed hairs.
    Stigma
    Ventral stigma lobe 1–1.5 × ± 0.5 mm.
    Fruits
    Capsule narrowly oblanceolate, with appressed hairs, eventually glabrous, 17–22 mm long, 8–12-seeded
    Seeds
    Mature seed not seen.
    Ecology
    Acacia, Acacia-Commiphora and Acacia-Euphorbia bushland on sandy or alluvial soil; (50–)200–950 m
    Note
    This species has characters from both R. prostrata (hairy capsule) and R. patula (short triangular calyx lobes). It differs from both in the shrubby habit and the narrowly oblanceolate capsule with appressed hairs.
    Distribution
    Range: Ethiopia, Somalia; Yemen, India Flora districts: U1 K1 K2 K6 K7

    Images

    Distribution

    Native to:

    Djibouti, Ethiopia, Kenya, Myanmar, Pakistan, Somalia, Uganda, Yemen

    Synonyms

    Other Data

    Ruellia linearibracteolata Lindau appears in other Kew resources:

    Bibliography

    First published in Annuario Reale Ist. Bot. Roma 6: 70 (1896)

    Accepted by

    • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.
    • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

    Literature

    Kew Backbone Distributions

    • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
    • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.
    • Kress, W.J., DeFilipps, R.A., Farr, E. & Kyi, D.Y.Y. (2003). A Checklist of the Trees, Shrubs, Herbs and Climbers of Myanmar Contributions from the United States National Herbarium 45: 1-590. Smithsonian Institution.
    • Audru, J., Cesar, J. & Lebrun, J.-P. (1994). Les Plantes Vasculaires de la République de Djibouti. Flore Illustrée 1: 1-336. CIRAD, Départerment d'Elevage et de Médecine vétérinaire, Djibouti.

    Flora of Tropical East Africa

    • F.E.E. 5: 390 (2006)
    • Fl. Somalia 3: 394 (2006).
    • E.P.A.: 936 (1964)
    • F.T.A. 5: 47 (1899)
    • Ann. R. Ist. Bot. Roma 6: 70 (1897)

    Sources

    Flora of Tropical East Africa
    Flora of Tropical East Africa
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2020. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Science Photographs
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/