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This genus is accepted, and its native range is Africa, E. Medit. to India.
Monsonia attenuata

[FZ]

Geraniaceae, T. Müller. Flora Zambesiaca 2:1. 1963

Morphology General Habit
Annual or perennial herbs (sometimes with annual shoots arising from a woody basal region) or suffrutices; erect or decumbent, rarely acaulescent; variously pubescent, usually glandular.
Morphology Leaves
Leaves petiolate, stipulate, opposite or alternate, serrate, dentate or crenate, sometimes lobed or dissected; stipules filiform to subulate or rarely spinescent.
Morphology Reproductive morphology Inflorescences
Pedicels often sharply bent when in fruit; bracts present. Inflorescence a 2-several flowered pseudumbel (or flowers solitary).
Morphology Reproductive morphology Flowers
Flowers actinomorphic, 5-merous.
Morphology Reproductive morphology Flowers Calyx
Sepals imbricate, apiculate with membranous margin.
Morphology Reproductive morphology Flowers Corolla
Petals obovate, often with a truncate or lobed apex.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 15, all fertile, connate at the base, in 5 bundles of 3 filaments each, the central filament of each triad being longer; extrastaminal glands present, 5, adnate to the base of the longer central filaments, sometimes inconspicuous; anthers versatile.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 5-lobed, 5-locular, rostrate; loculi 2-ovulate; style absent; stigmas 5, clavate or filiform.
Morphology Reproductive morphology Fruits
Fruit a rostrate schizocarp; mericarps rostrate, 1-seeded, obliquely truncate at the apex of the basal portion and tapering towards the base, hirsute; rostrum persistent, helically twisting when ripe, plumose on the inside.
Morphology Reproductive morphology Seeds
Seeds ± oblong-obovoid; endosperm absent; embryo curved.

[FTEA]

Geraniaceae, J. O. Kokwaro (University College Nairobi). Flora of Tropical East Africa. 1971

Morphology General Habit
Annual or perennial herbs (sometimes with annual shoots arising from a woody basal region), or suffrutices, erect or decumbent, rarely acaulescent, variously pubescent, usually glandular
Morphology Leaves
Leaves opposite or alternate, petiolate, serrate, dentate or crenate, sometimes lobed or dissected; stipules filiform to subulate or rarely spinescent
Morphology Reproductive morphology Inflorescences
Inflorescence usually a 2-several-flowered simple umbel, occasionally the flowers solitary
Morphology Reproductive morphology Flowers
Flowers actinomorphic, 5-merous; pedicels often sharply bent when in fruit, bracteate
Morphology Reproductive morphology Flowers Calyx
Sepals imbricate, apiculate with membranous margins
Morphology Reproductive morphology Flowers Corolla
Petals obovate, often with truncate or lobed apex
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 15, all fertile, connate at the base, in 5 bundles of 3 filaments each, the central filament of each triad being longer
Morphology Reproductive morphology Flowers Nectaries
Extrastaminal glands 5, adnate to the base of the longer filaments
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 5-lobed and 5-locular, rostrate; loculi 2-ovulate; style absent or if present rather indistinct; stigmas 5, clavate or filiform
Morphology Reproductive morphology Fruits
Fruit a rostrate schizocarp; mericarps rostrate, 1-seeded, oblique, truncate at the apex of the basal portion and tapering towards the base, hirsute; rostrum persistent, helically twisting when ripe, plumose on the inside
Morphology Reproductive morphology Seeds
Seeds ± oblong-obovoid, exalbuminous; embryo curved.

[FSOM]

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

Morphology Reproductive morphology Flowers Gynoecium Style
Styles absent or obscure; stigmas 5, clavate or filiform
Morphology Reproductive morphology Fruits
Mericarps hirsute, beaked, the beak spirally twisted at maturity.
Distribution
Some 27 species in Africa and SW Asia, the majority in southern Africa.
Note
M. senegalensis Guill. & Perr. has been reported from Somalia by Venter (op. cit.) on the basis of a collection by “H. Aknupp” from “Harradera”. However, this collection was made by J. Thrupp in Harradigit in E Ethiopia and is M. ignea as actually identified by Venter himself in 1978.
Morphology General Habit
Herbs or shrublets
Morphology Leaves
Leaves opposite or alternate, simple, crenate or serrate, or sometimes lobed or dissected
Morphology Reproductive morphology Inflorescences
Flowers in 2–several-flowered umbels or solitary, regular
Morphology Reproductive morphology Flowers Calyx
Sepals imbricate, apiculate with membranous margins
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 15, all fertile, in 5 groups of 3 basally united filaments

Native to:

Algeria, Angola, Botswana, Burkina, Burundi, Cameroon, Cape Provinces, Cape Verde, Chad, Egypt, Eritrea, Ethiopia, Free State, Gulf States, India, Iran, Iraq, Kenya, Kuwait, KwaZulu-Natal, Lesotho, Libya, Madagascar, Mali, Mauritania, Morocco, Mozambique, Namibia, Niger, Nigeria, Northern Provinces, Oman, Pakistan, Palestine, Rwanda, Saudi Arabia, Senegal, Sinai, Somalia, Sudan, Swaziland, Tanzania, Tunisia, Uganda, Western Sahara, Yemen, Zambia, Zaïre, Zimbabwe

Monsonia L. appears in other Kew resources:

First published in Mant. Pl.: 14 (1767)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Flora of West Tropical Africa

  • —F.T.A. 1: 289.

Flora Zambesiaca

  • Syst. Nat. ed. 12, 2: 508 et Mant. Pl.: 14 (1767).

Flora of Somalia

  • Flora Somalia, Vol 1, (1993) Author: by M. Thulin [updated by M. Thulin 2008]
  • Venter in Meded. Landbouwhogeschool Wageningen 79-9 (1979).

Flora of Tropical East Africa

  • Mant. Pl.: 14 (1767)
  • Syst. Nat., ed. 12, 2: 508 (1767)

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

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 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 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