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

        This species is accepted, and its native range is Tropical Africa.

    [FTEA]

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

    Type
    Types: Sudan, Bongo, Gir, Schweinfurth 2155 (K!, isosyn.); Niamniam Nobambisso, Schweinfurth 3754 (not seen); Tukamis, Saiba Indimma, Schweinfurth 3789 (not seen)
    Habit
    Erect perennial with single stems to 60 cm tall from creeping rhizome; young stems pilose or sparsely so with broad curly glossy glandular hairs to 2 mm long
    Leaves
    Leaves with petiole 5–25 mm long; lamina ovate or broadly so, largest 4–7.5 × 2.2–4.2 cm, apex acute, base cuneate to truncate (rarely subcordate), pubescent to pilose or sparsely so. Flowers solitary or in 2-flowered axillary cymes; peduncle in cymes 3–7 mm long; pedicels 1–3 mm long, glabrous to pilose; bracteoles (bracts in cymes) ovate-elliptic or narrowly so, 11–27 × 3–12 mm
    Calyx
    Calyx 5–7 mm long, divided to (1–)2–3 mm from base, glabrous or lobes with scattered pilose hairs; lobes narrowly triangular
    Corolla
    Corolla open during the day, mauve; tube 16–23 mm long of which the basal cylindric part 6–8 mm and the throat 8–13 mm long; lobes 8–12 × 6–11 mm, ovate-elliptic with entire to slightly crenate margin
    Stamens
    Stamens included in throat, didynamous, anthers not overlapping; filaments fused for 1–2 mm at base, free parts 2–3 and 5–8 mm long; anthers 1.5–2 mm long
    Ovary
    Ovary glabrous.
    Stigma
    Ventral stigma lobe 1–1.5 × 0.5–1 mm
    Fruits
    Capsule clavate, glabrous, 13–18 mm long, 8–14-seeded
    Seeds
    Seed ellipsoid to circular, brown, 3–3.5 × 2.5–3.5 mm.
    Ecology
    Wetter types of grassland, bushland and woodland; 300–1450 m
    Note
    Almost certainly also in W and SW Tanzania. It has been collected close to the Zambia/Tanzania border. Very closely related to R. patula from which it differs in the habit, in the long broad curly glossy glandular hairs and in the longer pair of filaments being 3–5 mm longer than the shorter pair. R. praetermissa also has the flower open during the day while in R. patula it drops early in the morning.
    Distribution
    Flora districts: U1 T8 Range: Senegal, Mali, Sierra Leone, Ivory Coast, Ghana, Togo, Benin, Cameroon, Gabon, Central African Republic, Congo-Kinshasa, Rwanda, Burundi, Sudan, Zambia, Malawi
    [FWTA]

    Acanthaceae, H. Heine. Flora of West Tropical Africa 2. 1963

    Habit
    A decumbent undershrub
    Flowers
    White or blue-purple flowers, the corolla pubescent, outside, 1 in. or more long.

    Images

    Distribution

    Native to:

    Benin, Burkina, Burundi, Cameroon, Central African Repu, Chad, Gabon, Ghana, Ivory Coast, Malawi, Mali, Mauritania, Mozambique, Oman, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Yemen, Zambia, Zaïre

    Other Data

    Ruellia praetermissa Schweinf. ex Lindau appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Nov 27, 1896 Schweinfurth, G. [2155], Sudan K000393976 isotype

    Bibliography

    First published in Bot. Jahrb. Syst. 20: 15 (1894)

    Accepted by

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Vollesen, K. (2013). Flora Zambesiaca 8(5): 1-184. Royal Botanic Gardens, Kew.
    • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Wood, J.R.I. (1997). A handbook of the Yemen Flora: 1-434. 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.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 1: 1-359. Centre Regional de Documentation Pedagogique, Nice.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
    • Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    • Hepper, F.N. (ed.) (1963). Flora of West Tropical Africa, ed. 2, 2: 1-544.

    Literature

    Flora of West Tropical Africa

    • F. W. Andr. Fl. Sudan 3: 187 (1956).
    • Chev. Etud. Fl. Afr. Centr. 1: 232 (1913)
    • F.T.A. 5: 45
    • in Engl. Bot. Jahrb. 20: 15 (1894)

    Kew Backbone Distributions

    • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
    • Vollesen, K. (2013). Flora Zambesiaca 8(5): 1-184. Royal Botanic Gardens, Kew.
    • Thiombiano, A., Schmidt, M., Dressler, S., Ouédraogo, A., Hahn, K. & Zizka, G. (2012). Catalogue des plantes vasculaires du Burkina Faso Boissiera 65: 1-391.
    • Onana, J.M. (2011). The vascular plants of Cameroon a taxonomic checklist with IUCN assessments: 1-195. National herbarium of Cameroon, Yaoundé.
    • Vollesen, K. (2008). Flora of Tropical East Africa, Acanthaceae(1): 1-285.
    • Sosef, M.S.M. & al. (2006). Check-list des plantes vasculaires du Gabon Scripta Botanica Belgica 35: 1-438.
    • Akoègninou, A., van der Burg, W.J. & van der Maesen, L.J.G. (eds.) (2006). Flore Analytique du Bénin: 1-1034. Backhuys Publishers.
    • Wood, J.R.I. (1997). A handbook of the Yemen Flora: 1-434. 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.
    • Barry, J. P. & Celles, J.S. (1991). Flore de Mauritanie 1: 1-359. Centre Regional de Documentation Pedagogique, Nice.
    • Boudet, G., Lebrun, J.P. & Demange, R. (1986). Catalogue des plantes vasculaires du Mali: 1-465. Etudes d'Elevage et de Médecine Vétérinaire des Pays Tropicaux.
    • Boulvert, Y. (1977). Catalogue de la Flore de Centrafrique 2(1): 1-85. ORSTROM, Bangui.
    • Lebrun, J.-P., Audru, J., Gaston, A. & Mosnier, M. (1972). Catalogue des Plantes Vasculaires du Tchad Méridional: 1-289. Institut d' Elevage et de Médecine Vétérinaire des Pays Tropicaux, Maisons Alfort.
    • Hepper, F.N. (ed.) (1963). Flora of West Tropical Africa, ed. 2, 2: 1-544.

    Flora of Tropical East Africa

    • Lebrun & Stork, Enum. Pl. Afr. Trop. 4: 501 (1997).
    • Burkill, Useful Pl. W. Trop. Afr. 1: 26 (1985)
    • Fl. Gabon 13: 11 (1966)
    • E.P.A.: 939 (1964)
    • F.W.T.A. (ed. 2) 2: 396 (1963)
    • F.P.S. 3: 187 (1956)
    • F.T.A. 5: 45 (1899)
    • E. & P. Pf. IV,3b: 310 (1895)
    • E.J. 20: 15 (1894)

    Sources

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

    Flora of West Tropical Africa
    Flora of West Tropical 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