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This genus is accepted, and its native range is Tropical & Subtropical Old World.
Xenostegia tridentata

[FSOM]

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

Distribution
Genus of two species in the Old World tropics, previously included in Merremia, but with, among other things, pantoporate pollen.
Morphology General Habit
Prostrate or twining perennial herb
Morphology Leaves
Leaves narrow with truncate, hastate or auriculate base
Morphology Reproductive morphology Flowers
Flowers 1–2(–3) in pedunculate axillary cymes
Morphology Reproductive morphology Flowers Calyx
Sepals subequal or the 2 outer longer
Morphology Reproductive morphology Flowers Corolla
Corolla funnel-shaped
Morphology Reproductive morphology Flowers Pollen
Pollen grains smooth, pantoporate
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 4-ovulate; style simple; stigmas 2, globular
Morphology Reproductive morphology Fruits
Capsule 4-valved
Morphology Reproductive morphology Seeds
Seeds 1–4, ovoid, glabrous.

Native to:

Angola, Assam, Bangladesh, Benin, Borneo, Botswana, Burundi, Cambodia, Cameroon, Cape Provinces, Caprivi Strip, Caroline Is., Central African Repu, Chad, China South-Central, China Southeast, Christmas I., Comoros, Congo, Ethiopia, Free State, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Gulf of Guinea Is., Hainan, India, Ivory Coast, Jawa, Kenya, KwaZulu-Natal, Laos, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Maluku, Mozambique, Myanmar, Namibia, New Guinea, Nigeria, Northern Provinces, Northern Territory, Philippines, Queensland, Rwanda, Saudi Arabia, Senegal, Sierra Leone, Solomon Is., Somalia, Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Taiwan, Tanzania, Thailand, Togo, Uganda, Vietnam, Western Australia, Zambia, Zaïre, Zimbabwe

Introduced into:

Georgia, Puerto Rico

Xenostegia D.F.Austin & Staples appears in other Kew resources:

First published in Brittonia 32: 533 (1980 publ. 1981)

Accepted by

  • Barker, R.M. & Telford, I.R.H. (1993). Fl. Australia Oceanic Islds. Convolvs Flora of Australia 50: 342-353. Australian Government Publishing Service, Canberra.
  • Fang, R.-Z. & Staples, G. (1995). Convolvulaceae Flora of China 16: 271-325. Missouri Botanical Garden Press, St. Louis.
  • Hedberg, I., Kelbessa, E., Edwards, S., Demissew, S. & Persson, E. (eds.) (2006). Flora of Ethiopia and Eritrea 5: 1-690. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Johnson, R.W. (2012). Convolvulaceae Australian Plant Census Council of Heads of Australian Herbaria.
  • Lejoly, J. & S. Lisowski (1993). Les Convolvulaceae dans la flore d'Afrique Centrale (Zaïre, Rwanda, Burundi) Fragmenta Floristica et Geobotanica 38: 351-400.
  • Meeuse, A.D.J. & W.G. Welman (2000). Convolvulaceae Flora of Southern Africa 28: 1-138. Botanical Research Institute, Department of Agriculture.
  • Staples, G. (with P. Traiperm) (2010). Convolvulaceae Flora of Thailand 10: 330-468. The Forest Herbarium, National Park, Wildlife and Plant Conservation Department, Bangkok.
  • Thulin, M. et al. in Thulin, M. (ed.) (2006). Convolvulaceae Flora of Somalia 3: 221-258. The Royal Botanic Gardens, Kew.

Not accepted by

  • Deroin, T. (2001). Convolvulaceae Flore de Madagascar et des Comores (Plantes Vasculaires) 171: 11-287. Typographie Firmin-Didot et Cie., Paris. [Cited as Merremia.]

Literature

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by M. Thulin [updated by M. Thulin 2008]

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 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