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This genus is accepted, and its native range is Dry Tropical & S. Africa.
Aptosimum lugardiae (N.E.Br. ex Hemsl. & Skan) E.Phillips

[FZ]

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

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

[FSOM]

M. Thulin et al. Flora of Somalia Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Herbs or low shrubs
Morphology Leaves
Leaves alternate to apparently whorled, 1-nerved
Morphology Reproductive morphology Flowers
Flowers axillary, usually sessile or shortly pedicellate, 2-bracteolate
Morphology Reproductive morphology Flowers Calyx
Calyx generally deeply 5-lobed; lobes narrow
Morphology Reproductive morphology Flowers Corolla
Corolla-tube narrow at the base then broadened into a long throat; corolla-lobes 5, flat, subequal, rounded
Morphology Reproductive morphology Flowers Androecium Stamens
Stamen 4, 2 long and 2 short, attached near base of corolla, included; filaments filiform; anthers transverse, hispid or ciliate, 1-celled by confluence, the 2 smaller generally empty
Morphology Reproductive morphology Flowers Gynoecium Style
Style filiform, stigma small
Morphology Reproductive morphology Fruits
Capsule short, obtuse to emarginate, septicidal, 2-valved, each valve 2-cleft
Morphology Reproductive morphology Seeds
Seeds numerous, small, obovoid to spherical.
Distribution
About 22 species in tropical and southern Africa and Arabia.

[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

Morphology General Habit
Perennial, low shrubs, sometimes caespitose or mat-forming
Morphology Leaves
Leaves usually densely clustered on long or short shoots, linear, lanceolate, elongate, elliptic or spathulate, entire, 1-veined, midrib sometimes persistent and spinescent
Morphology Reproductive morphology 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
Morphology Reproductive morphology Flowers Androecium 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
Morphology Reproductive morphology Flowers Calyx
Calyx tubular to campanulate, 5-lobed to various depths; lobes linear, subulate, deltoid or ovate, valvate or nearly so in bud
Morphology Reproductive morphology Flowers 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
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary bilocular; ovules many; style filiform, exceeding stamens; stigma small, obscurely bidentate, emarginate, capitate or capitellate
Morphology Reproductive morphology 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.
Morphology Reproductive morphology Seeds
Seeds many, obovoid, flattened-globose, cylindrical, conical, reniform, pyramidal or irregularly shaped; testa reticulate to rugose, dark brown to black.
Morphology Stem
Stems elongated or short, often procumbent, mostly woody at the base
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.

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

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.
  • 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.

Literature

Kew Bulletin

  • Bentham 1836: sub t. 1882
  • Bentham 1846: 344
  • Hemsley & Skan (1906: 267)
  • Hiern (1904: 125)
  • Merxmüller & Roessler (1967: 12)
  • Philcox 1990: 3
  • Smithies 2000: 514, nom. cons.
  • Weber 1907: 2

Flora of West Tropical Africa

  • —F.T.A. 4, 2: 267.

Flora Zambesiaca

  • in Lindl., Bot. Reg. sub. t. 1882 (1836) nom. cons.

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by P. Cuccuini & C. Nepi [updated by M. Thulin 2008]

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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