1. Family: Scrophulariaceae Juss.
    1. Aptosimum Burch. ex Benth.

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

    [FZ]

    Scrophulariaceae, D. Philcox. Flora Zambesiaca 8:2. 1990

    Habit
    Prostrate, erect or suberect, or densely tufted undershrubs or woody herbs with long tap-roots.
    Leaves
    Leaves alternate, often crowded, entire, 1-nerved.
    Flowers
    Flowers solitary, axillary or short axillary cymose, sessile to subsessile, bibracteolate.
    Calyx
    Calyx 5-lobed; lobes linear to ovate; tube campanulate.
    Corolla
    Corolla 5-lobed; tube much longer than calyx, narrow at base widening into long throat; lobes subequal, flat, rounded.
    Stamens
    Stamens 4, didynamous, included; filaments filiform, inserted near base of corolla; anthers transverse, ciliate to subglabrous.
    Style
    Style long, filiform.
    Ovary
    Ovary bilocular with several to many ovules.
    Fruits
    Capsule ovoid-conical, acute or sub-acute to broadly ovoid-cylindrical, obtuse or emarginate, subcompressed.
    Seeds
    Seeds small, numerous, obovoid or compressed globose.
    [KBu]

    Kolberg H., van Salgeren M. 2016. A synopsis of Aptosimum and Peliostomum (Scrophulariaceae) in Namibia, including the description of a new species, Aptosimum radiatum, and keys to all accepted species. Kew Bulletin 71:16. DOI 10.1007/S12225-016-9628-7

    Type
    Lectotype: Aptosimum procumbens (Lehm.) Steud., selected by Brummitt (1978: 544). Note: Codd (1976: 190) proposed conservation of Aptosimum (validly published in 1836) against the older (1835) Ohlendorffia. This was accepted (Brummitt 1978: 544). Codd’s originally proposed lectotype, A. depressum Burch. ex Benth. (from 1836) is, however, an illegitimate name following Art. 52.1 of the Code (McNeill et al. 2012) and was corrected by Brummitt (1978: 544) as procumbens is the older (1835) epithet.
    Habit
    Perennial, low shrubs, sometimes caespitose or mat-forming
    Stem
    Stems elongated or short, often procumbent, mostly woody at the base
    Leaves
    Leaves usually densely clustered on long or short shoots, linear, lanceolate, elongate, elliptic or spathulate, entire, 1-veined, midrib sometimes persistent and spinescent
    Flowers
    Flowers solitary in leaf axils or in short axillary cymes, sessile or subsessile, bibracteolate, dark blue to violet, often with dark patches at base of corolla lobes and dark venation in paler throat
    Calyx
    Calyx tubular to campanulate, 5-lobed to various depths; lobes linear, subulate, deltoid or ovate, valvate or nearly so in bud
    Corolla
    Corolla tubular, weakly zygomorphic, 5-lobed; tube elongated, much longer than calyx, widening above narrow base into throat, mouth wide, oblique; limb patent, much shorter than tube; lobes free, rounded, more or less equal, two upper outside in bud
    Stamens
    Stamens four, didynamous, included, arising in lower part of corolla tube; filaments filiform; anthers of shorter, posterior pair smaller than those of longer, anterior pair and mostly sterile, anthers bithecate, dorsifixed, ciliate-hispid; thecae confluent so dehiscing along a single transverse line
    Ovary
    Ovary bilocular; ovules many; style filiform, exceeding stamens; stigma small, obscurely bidentate, emarginate, capitate or capitellate
    Fruits
    Fruit a thick-walled capsule, obovoid, broadly ovoid, ovoid to globose, upper part often compressed at right angles to septum, usually emarginate, septicidal but opening only at top, often persistent; valves usually bifid, hygrochastic.
    Seeds
    Seeds many, obovoid, flattened-globose, cylindrical, conical, reniform, pyramidal or irregularly shaped; testa reticulate to rugose, dark brown to black.

    Images

    Distribution

    Native to:

    Algeria, Angola, Botswana, Cape Provinces, Chad, Ethiopia, Free State, Kenya, Lesotho, Mauritania, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Oman, Saudi Arabia, Socotra, Somalia, Sudan, Tanzania, Western Sahara, Yemen, Zambia, Zaïre, Zimbabwe

    Aptosimum Burch. ex Benth. appears in other Kew resources:

    First published in Edwards's Bot. Reg. 22: t. 1882 (1836)

    Accepted by

    • Kolberg, H. & van Slageren, M. (2016). A synopsis of Aptosimum and Peliostomum (Scrophulariaceae) in Namibia, including the description of a new species, Aptosimum radiatum, and keys to all accepted species Kew Bulletin 71(16): 1-50. Royal Botanic Gardens, Kew.
    • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.

    Literature

    Kew Bulletin
    • Smithies 2000: 514, nom. cons.
    • Philcox 1990: 3
    • Merxmüller & Roessler (1967: 12)
    • Weber 1907: 2
    • Hemsley & Skan (1906: 267)
    • Hiern (1904: 125)
    • Bentham 1846: 344
    • Bentham 1836: sub t. 1882
    Flora of West Tropical Africa
    • —F.T.A. 4, 2: 267.
    Flora Zambesiaca
    • in Lindl., Bot. Reg. sub. t. 1882 (1836) nom. cons.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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 Bulletin
    Kew Bulletin
    http://creativecommons.org/licenses/by-nc-sa/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