1. Family: Lamiaceae Martinov
    1. Fuerstia T.C.E.Fr.

      1. This genus is accepted, and its native range is Tropical Africa.

    [LKGF]

    Harley, R.M. et al. (2004). Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Springer-Verlag, Berlin, Heidelberg, New York.

    Habit
    Subshrubs or herbs, often geoxylic, not aromatic
    Leaves
    Leaves simple, opposite, ternate or quadrate
    Inflorescences
    Inflorescence thyrsoid with cymes sessile, 1-flowered
    Bracts
    Bracts persistent, not coloured, often inconspicuous
    Calyx
    Calyx shortly tubular, straight or curving upwards, strongly 2-lipped, 5-lobed (1/4), lobes unequal, posterior rounded, decurrent, curving upwards, lateral lobes deltoid, usually with a prominent shoulder, anterior lobes subulate; throat open, glabrous
    Corolla
    Corolla strongly two-lipped, 5-lobed (4/1), white or pink, posterior lip ascending, 4-lobed with median lobes exceeding lateral lobes, anterior lip horizontal, concave, corolla-tube straight or slightly curved, parallel-sided, dilating towards throat
    Stamens
    Stamens 4, posterior pair sterile, held within tube, attached above midpoint of corolla-tube, pubescent, inappendiculate, anterior pair held over anterior lip, attached at corolla throat, glabrous
    Style
    Style capitate-clavate
    Stigma
    Stigma lobes equal, rounded, connivent
    Disc
    Disc 4-lobed with anterior lobe larger
    Fruits
    Nutlets ± ovoid, glabrous, mucilaginous.
    Distribution
    Eight species in tropical Africa
    Ecology
    In grassland or woodland.
    [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
    Perennial woody herbs, subshrubs or suffrutices with annual stems arising from a woody rootstock, aromatic or not
    Stem
    Stems erect, woody at base
    Leaves
    Leaves opposite or in whorls of 3 or 4, petiolate or sessile
    Flowers
    Flowers hermaphrodite, arranged in 2–4flowered verticils, each flower being subtended by an inconspicuous bract
    Calyx
    Calyx persistent, bilabiate, shortly tubular; posterior lip large, ovate, entire, shortly decurrent on tube; anterior lip 4-lobed, lateral lobes deltate, cuspidate, median lobes lanceolate, long-acuminate; fruiting calyx with throat open, glabrous; posterior lip accrescent, lateral lobes of anterior lip often with posterior margin extended towards the posterior lip and with a small lanceolate or subulate tooth, median lobes acicular or subulate, curving upwards, usually longer than the lateral lobes
    Corolla
    Corolla bilabiate; tube parallel-sided exserted from the calyx, straight; posterior lip 4-lobed, median lobes narrower than and exceeding the lateral, anterior lip entire, cucullate, enclosing stamens or slightly deflexed
    Stamens
    Stamens 4, declinate, inappendiculate, posterior pair sterile and enclosed within tube, joined to the corolla at the midpoint of the tube, anterior joining nearer the corolla throat; anthers dorsifixed, synthecous
    Disc
    Disk 4-lobed with the anterior lobe larger
    Ovary
    Ovary glabrous, deeply 4lobed; style gynobasic, capitate, lobes rounded, adpressed
    Fruits
    Nutlets ovoid, with a small basal scar, producing mucilage when wet.
    Note
    Closely related to Orthosiphon, but differing in having only 2 fertile stamens (see Fig. 28: 3 & 4, p. 188) and in having the flowers single in the axils of small bracts rather than each bract subtending a cyme of 3 flowers.

    Images

    Distribution

    Native to:

    Angola, Ethiopia, Kenya, Malawi, Rwanda, Somalia, Sudan, Tanzania, Uganda, Zambia

    Fuerstia T.C.E.Fr. appears in other Kew resources:

    First published in Acta Univ. Lund., 2, 25(17): 3 (1929)

    Accepted by

    • 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
    • Kubitzki, Fam. Gen. Vasc. Pl. 7: 261 (2004)
    • K.B. 48: 129–137 (1994)
    • J.B. 70: 269–274 (1932)
    • Acta Univ. Lund Nova Ser., Avd. 2, 25, 17: 3 (1929)
    Lamiaceae Key Genus Fact Sheets
    • Harley RM, Atkins S, Budantsev AL, Cantino PD, Conn BJ, Grayer R, Harley MM, de Kok RPJ, Krestovskaja T, Morales R, Paton AJ, Ryding O, and Upson T. 2004. Labiatae, in The Families and Genera of Vascular Plants (K. Kubitzki, ed. in chief) VI: 167-275. Sp
    • Paton, Kew Bull. 48: 129-137 (1993), rev.
    • Taylor, J. Bot. 70: 269-274 (1932), rev.
    • Fuerstia T.C.E. Fries, Acta Univ. Lund Nova Ser. Avd. 2, 25, 17: 3 (1929)

    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 2019. 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 2019. 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

    Lamiaceae Key Genus Fact Sheets
    Nina Davies, Gemma Bramley and Don Kirkup, Royal Botanic Gardens, Kew
    http://creativecommons.org/licenses/by/3.0