1. Family: Lamiaceae Martinov
    1. Syncolostemon E.Mey. ex Benth.

      1. This genus is accepted, and its native range is Dry Tropical & S. Africa, Madagascar, India.

    [FTEA]

    Lamiaceae (Labiatae), A.J. Paton, G. Bramley, O. Ryding, R.M. Polhill, Y.B. Harvey, M. Iwarsson, F. Willis, P.B. Phillipson, K. Balkwill, C.W. Lukhoba, D.F. Otieno, & R.M. Harley. Flora of Tropical East Africa. 2009

    Habit
    Aromatic, perennial or annual herbs, woody herbs or suffrutices
    Stem
    Stems erect or decumbent, branching above, often woody at base
    Leaves
    Leaves opposite, petiolate or subsessile
    Flowers
    Flowers hermaphrodite, arranged in 6-flowered verticils disposed in an usually lax inflorescence; bracts small or large and coloured forming an apical coma
    Calyx
    Calyx persistent, horizontal or downward-pointing, shortly tubular, bilabiate; posterior lip broadly ovate, entire, shortly decurrent on the tube; anterior lip with 4 subulate teeth, the median pair usually longer than the lateral pair and often curving upwards; in fruit posterior lip accrescent, throat open, glabrous
    Corolla
    Corolla white to pink or white marked with pink, bilabiate, posterior lip erect, shallowly 4-lobed, lobes often slightly revolute, anterior lip large, entire, horizontal or deflexed; throat truncate with lobes of the posterior lip very short; tube straight or slightly curved, exceeding calyx; interior glabrous or with hairs at base
    Stamens
    Stamens 4, declinate, ± equal, inappendiculate, posterior often shorter in younger flowers, exserted; posterior pair ciliate or subglabrous, attached 1/3 of way up tube from base; anterior filaments contiguous at insertion at throat of corolla, connate for most of length; anthers dorsifixed, synthecous
    Disc
    Disk with anterior lobe slightly larger
    Ovary
    Ovary glabrous; stigma capitate, bifid, lobes short, rounded
    Fruits
    Nutlets 4 or less as not all develop, brown, smooth with a dorsal vein, ovoid with a small basal scar, producing mucilage when wet or not; embryo straight; seed exalbuminous.
    Note
    Hemizygia has been previously recognized as a genus, though several authors have commented on its close affinity to Syncolostemon and identified intermediate species. Otieno et al. (2006) demonstrate that Hemizygia is not a monophyletic group and that it is difficult to separate morphologically from Syncolostemon. However, an expanded Syncolostemon including Hemizygia is monophyletic and can be easily diagnosed by the fused anterior staminal filaments.

    Images

    Distribution

    Native to:

    Angola, Benin, Botswana, Cameroon, Cape Provinces, Caprivi Strip, Central African Repu, Chad, Free State, India, KwaZulu-Natal, Madagascar, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Senegal, Sudan, Swaziland, Tanzania, Zambia, Zaïre, Zimbabwe

    Syncolostemon E.Mey. ex Benth. appears in other Kew resources:

    First published in E.H.F.Meyer, Comm. Pl. Afr. Austr.: 230 (1838)

    Accepted by

    • Paton, A.J., Bramley, G., Ryding, O., Polhill, R., Harvey, Y., Iwarsson, M., Willis, F., Phillipson, P., Balkwill, K., Lukhoba, C., Otiend, D & Harley (2009). Lamiaceae (Labiatae) Flora of Tropical East Africa: 1-430.
    • Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Flora of Tropical East Africa
    • Otieno et al. in Taxon 55: 941–958 (2006)
    • Pl. Evol. Syst. 261: 19–38 (2006)
    • Kubitzki, Fam. Gen. Fl. Pl. 7: 260 (2004)
    • F.S.A. 28 (4): 185 (1985)
    • Bothalia 12: 21 (1976)
    • E. Mey., Comment. Pl. Afr. Austr.: 230 (1837)

    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 2018. 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 2018. 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