''Mischogyne'' is a genus of plants in the family Annonaceae. It comprises five species distributed in

Angola , national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordina ...

Cameroon Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...

Gabon Gabon (; ; snq, Ngabu), officially the Gabonese Republic (french: République gabonaise), is a country on the west coast of Central Africa. Located on the equator, it is bordered by Equatorial Guinea to the northwest, Cameroon to the north ...

Ghana Ghana (; tw, Gaana, ee, Gana), officially the Republic of Ghana, is a country in West Africa. It abuts the Gulf of Guinea and the Atlantic Ocean to the south, sharing borders with Ivory Coast in the west, Burkina Faso in the north, and To ...

Guinea Guinea ( ),, fuf, 𞤘𞤭𞤲𞤫, italic=no, Gine, wo, Gine, nqo, ߖߌ߬ߣߍ߫, bm, Gine officially the Republic of Guinea (french: République de Guinée), is a coastal country in West Africa. It borders the Atlantic Ocean to the we ...

Guinea-Bissau Guinea-Bissau ( ; pt, Guiné-Bissau; ff, italic=no, 𞤘𞤭𞤲𞤫 𞤄𞤭𞤧𞤢𞥄𞤱𞤮, Gine-Bisaawo, script=Adlm; Mandinka: ''Gine-Bisawo''), officially the Republic of Guinea-Bissau ( pt, República da Guiné-Bissau, links=no ) ...

Ivory Coast Ivory Coast, also known as Côte d'Ivoire, officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital is Yamoussoukro, in the centre of the country, while its largest city and economic centre is ...

Liberia Liberia (), officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to its north, Ivory Coast to its east, and the Atlantic Ocean ...

Nigeria Nigeria ( ), , ig, Naìjíríyà, yo, Nàìjíríà, pcm, Naijá , ff, Naajeeriya, kcg, Naijeriya officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf o ...

Sierra Leone Sierra Leone,)]. officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered by Liberia to the southeast and Guinea surrounds the northern half of the nation. Covering a total area of , Sierra ...

Democratic Republic of the Congo The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...

Arthur Wallis Exell 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, taxo ...

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.

Description

Mischogyne are bushes or small trees. Their trunks are straight or branching from the base. They have elliptical to oval leaves that are arranged in an alternate

phyllotaxy In botany, phyllotaxis () or phyllotaxy is the arrangement of leaves on a plant stem. Phyllotactic spirals form a distinctive class of patterns in nature. Leaf arrangement The basic arrangements of leaves on a stem are opposite and alternat ...

. The leaves are paper to leathery with a dark green upper surface and a lighter green underside. The leaves can be hairless or covered in fine downy hairs. Their

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s have 1-2 flowers and are extra- axillary or terminal. Their flowers have both male and female reproductive structures. Their flowers have 3

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s that either touch one another at their margins, or are fused until

anthesis Anthesis is the period during which a flower is fully open and functional. It may also refer to the onset of that period. The onset of anthesis is spectacular in some species. In ''Banksia'' species, for example, anthesis involves the extension ...

. Their flowers have 6 white, oval petals arranged in two rows of three. In the flowers, the receptacles form columns that bear

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s at their base and

carpels Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' ...

at their apex. Each flower has numerous stamens that are arranged in a spiral

. The stamens have little or no filament, are linear, and deshisce laterally. The

theca In biology, a theca (plural thecae) is a sheath or a covering. Botany In botany, the theca is related to plant's flower anatomy. The theca of an angiosperm consists of a pair of microsporangia that are adjacent to each other and share a commo ...

e extend along nearly the entire length of the stamen. The connective tissue between the thecae can be hairless or covered in fine downy hairs, and can sometimes terminate in a tuft of hairs at the apex of the stamen. The flowers have 3-40 cylindrical or oval carpels that are densely covered in fine downy hairs. The styles are short. The stigmas have two lobes. The carpels have numerous

ovule In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the ''integument'', forming its outer layer, the ''nucellus'' (or remnant of the megasporangium), and the fe ...

s. The fruit can be round, ellipsoidal or oblong and either hairless or covered in fine downy hairs. The fruit can be smooth or ribbed. The fruit have 3-12 seeds per carpel. The seeds are flat ellipsoids.

Species

Species include: * '' Mischogyne congensis'' Gosline * ''

Mischogyne elliotiana ''Mischogyne elliotiana'' is a species of plant in the '' Annonaceae'' family. It is native to Cameroon, Gabon, Ghana, Guinea-Bissau, Ivory Coast, Liberia, Nigeria, Sierra Leone, and Zaire. Adolf Engler and Ludwig Diels, the German botanists wh ...

'' (Engl. & Diels) R.E.Fr. ex Le Thomas * ''

Mischogyne gabonensis ''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. Arthu ...

'' (Le Thomas) Gosline * ''

Mischogyne iddii ''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 ...

'' Gosline & A.R.Marshall Marshall * '' Mischogyne michelioides'' Exell

References

{{Taxonbar, from=Q9033615 Annonaceae Annonaceae genera Flora of Angola Flora of Cameroon Flora of Gabon Flora of Ghana Flora of Guinea Flora of Guinea-Bissau Flora of Ivory Coast Flora of Liberia Flora of Nigeria Flora of Sierra Leone Flora of the Democratic Republic of the Congo Taxa named by Arthur Wallis Exell