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This genus is accepted, and its native range is Tropical & Subtropical to Temp. Asia.
Merremia gracile (Convolvulaceae)

[FSOM]

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

Morphology General Habit
Herbs or small shrubs, twining or prostrate, rarely erect
Morphology Leaves
Leaves entire, lobed or compound
Morphology Reproductive morphology Inflorescences
Flowers axillary, solitary or in few- to many-flowered cymes
Morphology Reproductive morphology Flowers Perianth
Sepals usually subequal. Corolla funnel-shaped or campanulate, entire or lobed, white or yellow with a dark brown or purple centre
Morphology Reproductive morphology Flowers Pollen
Pollen grains smooth
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 2–4-celled, usually with 4 ovules; style filiform; stigmas 2, globular
Morphology Reproductive morphology Fruits
Capsule usually 4-valved
Morphology Reproductive morphology Seeds
Seeds usually 4, glabrous or pubescent.
Distribution
Pantropical genus of some 50 species.

[FTEA]

Convolvulaceae, B. Verdcourt (East African Herbarium). Flora of Tropical East Africa. 1963

Morphology General Habit
Herbs or shrubs, usually twiners but often prostrate, rarely erect
Morphology Reproductive morphology Flowers
Flowers solitary or in few- to many-flowered axillary inflorescences, small to rather large
Morphology Reproductive morphology Flowers Calyx
Sepals usually subequal, save in a very few species, elliptic to orbicular, obtuse or acute, sometimes accrescent
Morphology Reproductive morphology Flowers Corolla
Corolla funnel-shaped or campanulate, entire or slightly lobed, rarely deeply lobed, white or usually yellow* with various centres
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens included; pollen smooth
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2–4-locular, 4-ovuled; style simple, filiform; stigma biglobular
Morphology Reproductive morphology Fruits
Capsule 4-valved or dehiscing irregularly, 1–4-locular
Note
Only the following species of Ipomoea have yellow flowers :— I. tuberculata, alpina, obscura, and ochracea.

[FZ]

Convolvulaceae, Maria Leonor Gonçalves. Flora Zambesiaca 8:1. 1987

Morphology General Habit
Herbs or small shrubs, usually twiners, often prostrate, rarely erect.
Morphology Stem
Stems terete, more rarely winged.
Morphology Leaves
Leaves usually petiolate, variable in shape and size, entire, dentate, auricled, lobed or palmately or pedately partite to compound.
Morphology Reproductive morphology Flowers
Flowers axillary, solitary or in few- to many-flowered axillary inflorescences, small to rather large, usually cymose.
Morphology Reproductive morphology Inflorescences Bracts
Bracts usually small.
Morphology Reproductive morphology Flowers Calyx
Sepals 5, usually subequal, elliptic to lanceolate, ovate or oblong, acute or obtuse, sometimes accrescent.
Morphology Reproductive morphology Flowers Corolla
Corolla funnel-shaped or campanulate, entire or slightly lobed, rarely deeply lobed, mostly with distinct midpetaline areas, white or yellow with various centres, often darker brownish or purplish centre.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens often contorted; filaments filiform, often broadened at the base, often unequal; pollen smooth.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary 2–4-locular, 4-ovuled; style simple, filifrom, included; stigma biglobose.
Morphology Reproductive morphology Flowers Disc
Disk often annular.
Morphology Reproductive morphology Fruits
Capsule 4-valved or dehiscing irregularly, 1–4-locular.
Morphology Reproductive morphology Seeds
Seeds 4, or less by abortion, glabrous or pubescent.

Native to:

Angola, Assam, Bangladesh, Benin, Borneo, Botswana, Brazil North, Brazil Southeast, Burkina, Burundi, Buryatiya, Cambodia, Cameroon, Cape Provinces, Caroline Is., Central African Repu, Chad, China North-Central, China South-Central, China Southeast, Chita, Christmas I., Congo, Costa Rica, Cuba, Dominican Republic, East Himalaya, Ethiopia, Fiji, Free State, French Guiana, Gabon, Gambia, Ghana, Guatemala, Guinea, Guinea-Bissau, Guyana, Hainan, Haiti, India, Ivory Coast, Jawa, Kenya, Khabarovsk, KwaZulu-Natal, Laos, Lesotho, Lesser Sunda Is., Liberia, Madagascar, Malawi, Malaya, Mali, Maluku, Manchuria, Marianas, Mauritania, Mauritius, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest, Mongolia, Mozambique, Myanmar, Namibia, Nansei-shoto, Nepal, New Guinea, Nicaragua, Niger, Nigeria, Northern Provinces, Northern Territory, Ogasawara-shoto, Pakistan, Panamá, Philippines, Primorye, Queensland, Rwanda, Réunion, Senegal, Sierra Leone, Solomon Is., Somalia, Sri Lanka, Sudan, Sulawesi, Sumatera, Suriname, Swaziland, Taiwan, Tanzania, Thailand, Togo, Uganda, Venezuela, Vietnam, West Himalaya, Western Australia, Zambia, Zaïre, Zimbabwe

Introduced into:

Colombia, Leeward Is., Society Is., Trinidad-Tobago, Windward Is.

Recorded in error in:

Hawaii

Merremia Dennst. ex Endl. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
s.coll. [Cat. no. s.n.], Myanmar Merremia K001132439

First published in Gen. Pl., Suppl. 1: 1403 (1841)

Accepted by

  • Adams, C.D. in Adams, C.D. (1972). Flowering Plants of Jamaica: 601-614. University of the West Indies, Mona.
  • Andrews, F.W. in Andrews, F.W. (1956). Convolvulaceae The Flowering Plants of the Sudan 3: 102-125. T.Buncle & co., LTD., Arbroath, Scotland.
  • Austin, D. F. & M. Costea in Zuloaga, F. O., O. Morrone, & M. J. Belgrano (2008). Convolvulaceae Catálogo de las plantas vascualres del Cono Sur 2: 1936-1966. Missouri Bot. Garden.
  • Austin, D. F. (1982). Flora of Ecuador 15: 3-99. Botanical Institute, University of Göteborg, Riksmuseum, Stockholm.
  • Austin, D.F. & Cavalcante, P.B. (1982). Convolvuláceas da Amazônia Publicações Avulsas do Museo Goeldi 36: 1-134.
  • Austin, D.F. & S. Ghazanfar in E. Nasir & Ali, S.I. (eds.) (1979). Convolvulaceae Flora of West Pakistan 126: 1-64.
  • Austin, D.F. (1975). Convolvulaceae Annals of the Missouri Botanical Garden 62: 157-224.
  • Austin, D.F. in Dassanayake (ed.) (1980). Rev. Handb. Fl. Ceylon Convolvulaceae A Revised Handbook to the Flora of Ceylon 1: 288-363. Oxford & IBH Publishing Co. PVT. LTD., New Delhi, Calcutta.
  • Austin, D.F. in Lasser, T. (1982). Convolvulaceae Flora de Venezuela 8(3): 15-226. Fundación Educación Ambiental.
  • Austin, D.F. in Steyermark, J., Berry, P.E., Holts, B.K. (eds). (1998). Convolvulaceae Flora of the Venezuelan Guayana 4: 377-424. Missouri Botanical Garden, St. Louis.
  • Austin, D.F. in Wagner, W.L., D.R. Herbst, & S.H. Sohmer (1999). Man. Fl. Plts. Hawai'I Convolvulaceae Manual of the Flowering Plants of Hawai'I 1: 548-564. University of Hawaii Press.
  • Baker, J.G. & A.B. Rendle in Thiselton-Dyer, W.T. et al. (eds.) (1905). Convolvulaceae Flora of Tropical Africa 4(2): 62-206. Secretary of State for the Colonies.
  • Barker, R.M. & Telford, I.R.H. (1993). Fl. Australia Oceanic Islds. Convolvs Flora of Australia 50: 342-353. Australian Government Publishing Service, Canberra.
  • Bosser, J. & H. Heine (2000). Fl. Mascar. Convolvulaceae Flore des Mascareignes 127: 1-63. IRD Éditions, MSIRI, RBG-Kew, Paris.
  • Deroin, T. (2001). Convolvulaceae Flore de Madagascar et des Comores (Plantes Vasculaires) 171: 11-287. Typographie Firmin-Didot et Cie., Paris.
  • Dobignard, A. & C. Chatelain in Dobignard, A. & Chatelain, C. (2011). Convolvulaceae Index synonymique de la flore d'Afrique du nord 3: 331-351. Conservatoire et Jardin Botanique de la ville de Genève.
  • Fang, R.-Z. & Staples, G. (1995). Convolvulaceae Flora of China 16: 271-325. Missouri Botanical Garden Press, St. Louis.
  • Fosberg, F.R. & Sachet. M.-H. (1977). Flora of Micronesia 3: Convolvulaceae Smithsonian Contributions to Botany 36: 1-34.
  • Gagnepain & Courchet in H. Lecomte (1915). Flore Indo-Chine Convolvulaceae Flore Générale de l'indo-Chine 4: 228-313.
  • 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.
  • Heine, H. (1984). Fl. Nouv. Caléd. & Dépend. Convolvulaceae Flore de la Nouvelle-Calédonie et Dépendances 13: 1-91. Muséum National d'Histoire Naturelle, Paris.
  • Heine, H. in Hutchinson, J. & Dalziel, J.M. (1963). Convolvulaceae Flora of West Tropical Africa, second edition 2: 335-352 + 496. Crown Agents for Oversea Governments and Administrations.
  • Hill, A.W. & Sandwith, N. in Williams, R.O. (1953). Fl. Trinidad & Tobago Convolvs. Flora of Trinidad and Tobago 2(4): 210-240. Government Printing Office, Port-of-Spain.
  • Johnson, R.W. (2009). A conspectus of Merremia Dennst. Ex Endl. (Convolvulaceae) in Australia with the addition of two species Austrobaileya 8: 55-63.
  • Johnson, R.W. (2012). Convolvulaceae Australian Plant Census Council of Heads of Australian Herbaria.
  • Khan, M.S. (1985). Fl. Bangladesh Convolvulaceae Flora of Bangladesh 30: 1-59. Bangladesh National Herbarium, Dhaka.
  • Lejoly, J. & S. Lisowski (1992). Les genres Merremia et Ipomoea (Convolvulaceae) dans la Flore d'Afrique Centrale (Zaire, Rwanda, Burundi) Fragmenta Floristica et Geobotanica 37: 21-125.
  • Matuda, E. in Matuda, E. (1966). Las Convolvulaceas del estado de Mexico Las Convolvulaceae del estado de Mexico: 1-56. Govierno del Estado de Mexico, Direccion de Agricultura y Ganaderia.
  • Meeuse, A.D.J. & W.G. Welman (2000). Convolvulaceae Flora of Southern Africa 28: 1-138. Botanical Research Institute, Department of Agriculture.
  • Mill, R.R. (1999). Fl. Bhutan Convolvulaceae Flora of Bhutan 2(2): 834-862. Royal Botanic Gardens, Edinburgh.
  • O'Donell, C.A. (1941). Revision de las especies americanas de Lilloa 6: 467-554. Universidad Nacional de Tucuman, Instituto 'Miguel Lillo'.
  • Ooststroom, S.J. van & R.D. Hoogland (1953). Convolvulaceae Flora Malesiana 4: 388-512. Noordhoff-Kolff N.V., Djakarta.
  • Sa'ad, F. (1967). The Convolvulus species of the Canary Islands, the Mediterranean region and the Near and Middle East Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht 281: 1-288.
  • Smith, A.C. in Smith, A.C. (1991). Fl. Vitiensis Nova Convolvulaceae Flora Vitiensis Nova. A new flora for Fiji (Spermatophytes only) 5: 41-69. Pacific Tropical Botanical Garden, Lawai.
  • 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.
  • Verdcourt, B. (1963). Convolvulaceae Flora of Tropical East Africa: 1-161.
  • Yamazaki, T. (1993). Fl. Japan Convolvulaceae Flora of Japan IIIa: 195-205. Kodansha Ltd., Tokyo.

Literature

Flora of Somalia

  • Flora Somalia, Vol 3, (2006) Author: by M. Thulin [updated by M. Thulin 2008]
  • Sebsebe in Kew Bull. 56: 931–943 (2001)
  • Thulin in Nord. J. Bot. 23: 629–640 (2005).

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

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Interactive Key to Seed Plants of Malesia and Indo-China
The Malesian Key Group (2010) Interactive Key to Seed Plants of Malesia and Indo-China (Version 2.0, 28 Jul 2010) The Nationaal Herbarium Nederland Leiden and The Royal Botanic Gardens Kew

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