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  1. Family: Acanthaceae Juss.
    1. Genus: Ruellia Plum. ex L.
      1. Ruellia discifolia Oliv.

        This species is accepted, and its native range is E. & S. Ethiopia to N. Kenya, S. Arabian Peninsula.

    [FTEA]

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

    Type
    Type: Ethiopia, Adda Galla, James & Thrupp s.n. (K!, holo.)
    Habit
    Erect or straggling shrubby herb or shrub to 1 m tall; young stems densely whitish pubescent to tomentellous with many-rayed stellate hairs, often also with dense glandular hairs and rarely with long thin pilose hairs
    Leaves
    Leaves with petiole 0.5–2(–3) cm long; lamina ovate to broadly cordiform or reniform, largest 1.7–6 × 1.5–5 cm, apex subacute to broadly rounded, base truncate to cordate, densely whitish stellatepubescent to tomentellous beneath, sparser above
    Flowers
    Flowers solitary (or with two flowers on distinct pedicels), axillary; pedicels 2–25(–35) mm long; bracteoles foliaceous, 6–15 × 4–12 mm
    Calyx
    Calyx 13–25 mm long, divided to 2–3 mm from base, stellate-tomentellous and often also with stalked glands; lobes, linear, acute. Corolla opening in the evening, fallen by early morning, white (rarely with a faint purple tinge); tube 4–8 cm long of which the basal cylindric part 3–6 cm and the throat 1–3 cm long; lobes 8–13 × 7–14 mm, broadly triangular-reniform with wavy margin and rounded apex
    Stamens
    Stamens didynamous; filaments fused for 2–3 mm at base, free parts 4–6 and 7–9 mm long, glabrous or longer pair with a few hairs; anthers 3–5 mm long
    Ovary
    Ovary densely pubescent.
    Stigma
    Ventral stigma lobe 1.5–2.5 × ± 0.5 mm, dorsal ± 0.5 mm long
    Fruits
    Capsule strongly clavate, pubescent all over with non-glandular hairs, 18–22 mm long, 6-seeded
    Seeds
    Seed orbicular, dark grey, ± 6 × 6 mm.
    Ecology
    Acacia-Commiphora woodland and bushland with Sterculia and Terminalia on rocky limestone hills; 400–600 m
    Distribution
    Range: Ethiopia, Somalia; Saudi Arabia, Yemen Flora districts: K1

    Images

    Distribution

    Native to:

    Ethiopia, Kenya, Oman, Somalia, Yemen

    Synonyms

    Other Data

    Ruellia discifolia Oliv. appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    James [s.n.], Somalia K000393974

    Bibliography

    First published in Hooker's Icon. Pl. 16: t. 1511 (1886)

    Accepted by

    • Patzelt, A., Harrison, T., Knees, S.G. & Hartley, L.A. (2014). Studies in the flora of Arabia: XXXI. New records from the Sultanate of Oman Edinburgh Journal of Botany 71: 161-180.
    • Mosti, S., Raffaelli, M. & Tardelli, M. (2012). Contributions to the flora of central-southern Dhofar (Sultanate of Oman) Webbia; Raccolta de Scritti Botanici 67: 65-91.
    • 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.
    • Ghazanfar, S.A. (1992). An Annotated Catalogue of the Vascular Plants of Oman and their Vernacular names Scripta Botanica Belgica 2: 1-153.

    Literature

    Kew Backbone Distributions

    • Mosti, S., Raffaelli, M. & Tardelli, M. (2012). Contributions to the flora of central-southern Dhofar (Sultanate of Oman) Webbia; Raccolta de Scritti Botanici 67: 65-91.
    • Thulin, M. (ed.) (2006). Flora of Somalia 3: 1-626. The Royal Botanic Gardens, Kew.

    Flora of Tropical East Africa

    • F.E.E. 5: 388 (2006)
    • Fl. Somalia 3: 393 (2006).
    • Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 501 (1997)
    • Kuchar, Pl. Somalia (CRDP Techn. Rep. Ser., no. 16): 250 (1986)
    • E.P.A.: 937 (1964)
    • Chiovenda, Fl. Somala: 248 (1929)
    • F.T.A. 5: 47 (1899)
    • James, Unknown Horn Afr.: 321, t.2 (1888)
    • Hooker, Ic. Pl., ser. 3, 6: t. 1511 (1886)

    Sources

    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 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