Arthur Wallis Exell

British botanist (1901–1993).

Arthur Wallis Exell OBE (21 May 1901 in Birmingham – 15 January 1993 in Cheltenham) was initially an assistant and later Deputy Keeper of Botany at the British Museum during the years 1924–1939 and 1950–1962. A noted cryptographer, taxonomist and phytogeographer, he was notable for his furthering of botanical exploration in tropical and sub-tropical Africa, and was an authority on the family Combretaceae. Exell's formal education started at Queen Elizabeth Grammar School in Warwickshire, and then King Edmund's School in Birmingham. From there he went on to Emmanuel College, Cambridge and was a

Abbreviations: Exell
Occupations: botanist, botanical collector
Citizenships: United Kingdom of Great Britain and Ireland, United Kingdom
Languages: English
Dates: 1901-05-21T00:00:00Z – 1993-01-15T00:00:00Z
Birth place: Birmingham
Direct attributions: 295 plants, 0 fungi
Authorship mentions: 366 plants, 0 fungi

295 plants attributed, 71 plants contributed to366 plants:

Irvingiaceae (African Mango Family) Exell & Mendonça 1951
plant family in the order malpighiales
Irvingiaceae is a small family of flowering plants, consisting of about 13 species; it was erected by Exell and Mendonça in 1951. The family and type genus were named after the Scottish naval surgeon, Edward George Irving.
Terminalia ferdinandiana (Kakadu Plum) Exell 1935
plant species in the combretaceae family
Terminalia ferdinandiana, most commonly known as the Kakadu plum and also called the gubinge, billygoat plum, green plum, salty plum, murunga, mador and other names, is a flowering plant in the family Combretaceae, native to Australia, widespread throughout the tropical woodlands from north-western Australia to eastern Arnhem Land. Used as a traditional bush food and bush medicine for centuries, the fruit has especially high levels of vitamin C.
Ludwigia hyssopifolia (Seedbox) (G.Don) Exell 1957
annual and medicinal plant species in the onagraceae family
Ludwigia hyssopifolia, called seedbox and linear leaf water primrose, is a species of flowering plant in the genus Ludwigia, native to the New World Tropics and widely introduced to the rest of the world's tropics. A serious weed of rice paddies, a single plant can produce 250,000 seeds.
Ctenolophonaceae (Ctenolophon Family) Exell & Mendonça 1951
plant family in the order malpighiales
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Neostenanthera Exell 1935
plant genus in the annonaceae family
Neostenanthera is a genus of flowering plant in the Annonaceae family. All discovered species are native to continental Africa. It contains the following species, according to The Plant List: Neostenanthera gabonensis (Engl. & Diels) Exell Neostenanthera hamata (Benth.) Exell Neostenanthera myristicifolia (Oliv.) Exell Neostenanthera neurosericea (Diels) Exell Neostenanthera robsonii Le Thomas
Drosera dielsiana (Diels Sundew) Exell & Laundon 1956
perennial plant species in the droseraceae family
Drosera dielsiana is a compact rosetted sundew native to South Africa (KwaZulu-Natal, the Free State, the Northern Provinces), Eswatini (Swaziland), Mozambique, Malawi, and Zimbabwe. It was described as a new species by Arthur Wallis Exell and Jack Rodney Laundon in 1956. The diploid chromosome number is 2n=40. It was named in honor of Ludwig Diels, the author of the 1906 monograph on the Droseraceae.
Mischogyne Exell 1932
plant genus in the annonaceae family
Mischogyne is a genus of plants in the family Annonaceae. It comprises five species distributed in Angola, Cameroon, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Nigeria, Sierra Leone, Democratic Republic of the Congo. Arthur Wallis Exell the British botanist who first formally described the genus named it after the stalks (μίσχος, míschos, in Greek) that bears its reproductive (γυνή, gunḗ, in Greek) structures.
Combretum edwardsii (Forest Climbing Bushwillow) Exell 1968
plant species in the combretaceae family
Combretum edwardsii, the Natal combretum or forest climbing bushwillow, is an uncommon forest plant endemic to the mistbelt region of eastern South Africa. It has a climbing habit and the stems may often lie prostrate on the forest floor or on cliff tops. As with some other Combretum species the leaves assume autumn colours before they are shed. The plant flowers in spring and the 4-winged fruits reach maturity in late summer.
Amblygonocarpus andongensis (Scotsman's Rattle) (Welw. ex Oliv.) Exell & Torre 1955
plant species in the fabaceae family
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Terminalia reitzii Exell 1964
vulnerable plant species in the combretaceae family
Terminalia reitzii is a species of plant in the Combretaceae family. It is endemic to Brazil, growing primarily in seasonally dry tropical forests in the southern part of the country. It is threatened by habitat loss.
Bulbophyllum mediocre Summerh. ex Exell 1959
endangered plant species in the orchidaceae family
Bulbophyllum mediocre is a species of orchid in the genus Bulbophyllum.
Terminalia amazonia (White Olive) (J.F.Gmel.) Exell 1935
plant species in the combretaceae family
Terminalia amazonia is a species of tree in the Combretaceae family. It is native to North America and South America and has been used for commercial logging. The wood is hard and durable. In Belize, Terminalia amazonia is widely located in the Mountain Pine Ridge.
Pinacopodium Exell & Mendonça 1951
plant genus in the erythroxylaceae family
Pinacopodium is a genus of flowering plants belonging to the family Erythroxylaceae. Its native range is Western Central Tropical Africa. Species: Pinacopodium congolense (S.Moore) Exell & Mendonça Pinacopodium gabonense (Cavaco & Normand) Normand & Cavaco
Diogoa Exell & Mendonça 1951
plant genus in the olacaceae family
Diogoa is a genus of flowering plants belonging to the family Olacaceae. Its native range is Western Central Tropical Africa; found in Cameroon, Congo, Gabon, Nigeria and Zaïre. The genus name is in honour of Diogo Cão (c. 1450 – c. 1486), a Portuguese explorer. Known species: Diogoa retivenia (S.Moore) Breteler Diogoa zenkeri (Engl.) Exell & Mendonça
Burttia prunoides Baker f. & Exell 1931
plant species in the connaraceae family
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Abutilon guineense (Monkey Bush) (Schumach.) Baker f. & Exell 1936
perennial plant species in the malvaceae family
Abutilon guineense is a species of flowering plant in the mallow family, Malvaceae. It has a broad distribution in Africa and has been introduced elsewhere. It may comprise more than one species, with others yet undescribed. In China it occurs in Hainan, Sichuan, and Yunnan. Abutilon guineense was originally described by Heinrich Christian Friedrich Schumacher in 1829 as Sida guineensis. Two varieties are accepted: Abutilon guineense. var. guineense — calyx bell-shaped, petals approximately 18 mm (0.71 in) long, staminal column smooth Abutilon guineense var. forrestii (S.Y.Hu) Y.Tang — calyx
Zanha africana (Beaked-plum) (Radlk.) Exell 1966
plant species in the sapindaceae family
Zanha africana, commonly known as the velvet-fruited zanha in English and as mkalya or mkwanga in Swahili, is a species of plant in the family Sapindaceae that is native to Africa. It is used locally for timber and herbal medicine.
Xylopia tomentosa Exell 1926
plant species in the annonaceae family
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Xylopia talbotii Exell 1931
plant species in the annonaceae family
Xylopia talbotii is a species of plant in the Annonaceae familyendemic to Nigeria. It is threatened by habitat loss.
Rinorea thomensis Exell 1944
vulnerable plant species in the violaceae family
Rinorea thomensis is a species of plant in the Violaceae family. It is endemic to São Tomé Island.
Grewia lutea Exell 1927
plant species in the malvaceae family
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Combretum cacoucia Exell 1931
plant species in the combretaceae family
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Begonia crateris Exell 1944
endangered plant species in the begoniaceae family
Begonia crateris is a plant species of the genus Begonia in the family Begoniaceae, first described by Arthur Wallis Exell in 1944. It is endemic to São Tomé Island, and grows up to 3 metres tall. It closest relative is Begonia baccata, also endemic to São Tomé.
Anthonotha fragrans (Baker f.) Exell & Hillc. 1955
plant species in the fabaceae family
Anthonotha fragrans is a medium to large sized tree commonly found in the rainforest environments of West and Central Africa; it belongs to the Fabaceae family. Its sapwood exudes a white to creamy exudate.
Xylopia paniculata Exell 1926
endangered plant species in the annonaceae family
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Thespesia acutiloba (Indian-tulip) (Baker f.) Exell & Mendonça 1954
plant species in the malvaceae family
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Polyscias quintasii Exell 1944
endangered plant species in the araliaceae family
Polyscias quintasii is a species of plant in the family Araliaceae. It is endemic to São Tomé and Príncipe. It was first described by Arthur Wallis Exell in 1944.
Polygala youngii Exell 1935
annual plant species in the polygalaceae family
Polygala youngii is a plant species in the milkwort family (Polygalaceae). It is native to boggy highlands and grasslands 1,200 to 1,350 metres (3,940 to 4,430 ft) above sea level in Angola and western Zambia. It is a 40 to 60 cm (16 to 24 in)-tall annual herb with very thin stems. It produces linear leaves with needle-like tips which are 10 to 12 centimetres (3.9 to 4.7 in) long and 0.5 centimetres (0.20 in) wide. The flowers it produces may be yellowish, pink, or blue.
Ochna hiernii (Tiegh.) Exell 1927
plant species in the ochnaceae family
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Neostenanthera myristicifolia (Oliv.) Exell 1935
plant species in the annonaceae family
Neostenanthera myristicifolia is a species of plant in the family Annonaceae. It is native to Benin, Cameroon, The Central African Republic, The Democratic Republic of the Congo, Equatorial Guinea, Gabon, Nigeria, and The Republic of the Congo.
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