Hexalobus bussei

Last updated

Hexalobus bussei
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Hexalobus
Species:
H. bussei
Binomial name
Hexalobus bussei
Synonyms

Hexalobus megalophyllusEngl. & Diels

Hexalobus bussei is a species of plant in the family Annonaceae. It is native to Cameroon. [2] Ludwig Diels, the German botanist who first formally described the species, named it after another German botanist, Walter Busse, who collected the sample that Diels examined. [3]

Contents

Description

It is a tree reaching 20-30 meters in height. Its trunk has brown to black, smooth bark that peels in flakes. Its young branches have light to dark brown bark and are covered in hairs. Its petioles are 1-7 by 2.5-7 millimeters in diameter and covered in sparse brown hair. Its oblong to oval, leathery leaves are 15.5-36 by 5.5-10.5 centimeters with tapering tips and heart-shaped bases. The glossy, grey hairless upper surfaces of the leaves have a slightly blistered or puckered appearance while the lower surfaces are hairless or covered in sparse brown hairs. The leaves have 12-17 pairs of secondary veins emanating from their midribs at angles of 55°-85°. Its solitary (sometimes 2), fragrant flowers are born pedicels that are 1-1.2 centimeters long. The pedicels have several bracts and are covered in dense rust-colored hairs. Its 3 oval, leathery sepals are 1.6-2 by 1.1-1.4 centimeters and densely covered in silky cream-colored to brown hairs. Its flowers have 6 petals that are fused at the base to form a 6-lobed corolla that is yellow with a purple base. The lance-shaped lobes are 3-5 millimeters long with rounded tips. The corollas are covered with white hairs. Its flowers have numerous oblong stamen that are 6.5-8 by 1.5 millimeters. The connective tissue between the lobes of the anther extends upward to form a broad, oblique, slanting cap. Its flowers have 3-7 densely hairy carpels that are 4.5-5 by 1-1.3 millimeters. Its horizontally positioned stigma are 3-4.6by 1-4 millimeters. Its orange, ridged, wrinkled, elliptical fruit occur in groups of 2-4, are 5.3-7.8 by 4 centimeters, and sparsely covered in rust-colored hairs. The fruit have 7-16, shiny, orange to brown, flattened, elliptical to oval seeds that are 2.3-2.8 by 1.7-1.9 by 8-10 millimeters. [4] [5]

Reproductive biology

The pollen of H. bussei is shed as permanent tetrads. [6]

Habitat and distribution

It has been observed growing in tropical lowland rain forests at elevations of 0 to 200 meters. [5]

Related Research Articles

<i>Asimina reticulata</i> Species of plant

Asimina reticulata, the netted pawpaw, is a species of plant in the family Annonaceae. It is native to Florida in the United States.

<i>Asteranthe asterias</i> Species of plant

Asteranthe asterias is a species of plant in the family Annonaceae. It is native to Kenya and Tanzania. Spencer Le Marchant Moore, the English botanist who first formally described the species using the basionym Uvaria asterias, did not explicitly explain the epithet, but was likely referencing the star-like appearance of its flower’s petals.

Goniothalamus latestigma is a species of plant in the family Annonaceae. It is native to Myanmar and Thailand. Cecil Ernest Claude Fischer, the botanist who first formally described the species, named it after its broad stigmas.

<i>Goniothalamus malayanus</i> Species of plant

Goniothalamus malayanus is a species of plant in the family Annonaceae. It is native to Borneo, the Malay Peninsula, the Nicobar Islands, Sumatra and Thailand. Joseph Dalton Hooker and Thomas Thomson, the British botanists who first formally described the species, named it after part of its habitat range, British Malaya.

Goniothalamus nitidus is a species of plant in the family Annonaceae. It is native to Borneo. Elmer Drew Merrill, the American botanist who first formally described the species, named it after its shining leaves.

<i>Goniothalamus ridleyi</i> Species of plant

Goniothalamus ridleyi is a species of plant in the family Annonaceae. It is native to Borneo, Peninsular Malaysia, Sumatra and Thailand. George King, who first formally described the species, named it after the English botanist Henry Nicholas Ridley who collected the specimen King examined.

Goniothalamus tortilipetalus is a species of plant in the family Annonaceae. It is native to Peninsular Malaysia and Thailand. Murray Ross Henderson, the Scottish botanist who first formally described the species, named it after its twisted petals.

<i>Hexalobus crispiflorus</i> Species of plant in the family Annonaceae

Hexalobus crispiflorus is a species of plant in the family Annonaceae. It is native to Angola, Benin, Cameroon, Central African Republic, Congo, DR Congo, Gabon, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Nigeria, Senegal, Sierra Leone, Sudan, Togo and Zaire. Achille Richard, the French botanist who first formally described the species, named it after its wavy petals of its flowers.

<i>Hexalobus monopetalus</i> species of plant in the family Annonaceae

Hexalobus monopetalus is a species of plant in the family Annonaceae. It is native to Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Senegal, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zaire and Zimbabwe. Achille Richard, the French botanist who first formally described the species, using the basionym Uvaria monopetala, named it after its petals which are fused at their base.

Huberantha flava is a species of plant in the family Annonaceae. It is native to The Philippines. Elmer Drew Merrill the American botanist who first formally described the species, using the basionym Polyalthia flava, named it after its brilliant yellow flowers.

Mitrephora glabra is a species of plant in the family Annonaceae. It is native to Borneo. Rudolph Scheffer, the Dutch botanist who first formally described the species, named it after its hairless leaves and mature twigs.

Mitrephora macclurei is a species of plant in the family Annonaceae. It is native to China, Laos and Vietnam. Aruna Weerasooriya and Richard Saunders, the botanists who first formally described the species, named it after Floyd Alonzo McClure of Lingnan University, who collected the holotype specimen that they examined.

Mitrephora macrocarpa is a species of plant in the family Annonaceae. It is native to Sulawesi. Friedrich Anton Wilhelm Miquel, the Dutch botanist who first formally described the species using the basionym Orophea macrocarpa, named it after its large fruit.

<i>Mitrephora winitii</i> Species of plant in the family Annonaceae

Mitrephora winitii is a species of plant in the family Annonaceae. It is native to Myanmar and Thailand. William Grant Craib, the British botanist who first formally described the species, named it after Phya Winit Wanandor, the Thai botanist who collected the specimen that Craib examined. In the Prachuap Khiri Khan province of Thailand it is commonly referred to as Mahaphrom.

Monodora carolinae is a species of plant in the family Annonaceae. It is native to Mozambique and Tanzania. Thomas Couvreur, the botanist who first formally described the species, named it after his wife Carolina.

Monodora laurentii is a species of plant in the family Annonaceae. It is native to the Democratic Republic of the Congo, Gabon, and the Republic of the Congo. Émile De Wildeman, the Belgian botanist who first formally described the species, named it after Marcel Laurent, the Belgian botanist who collected many plant specimens in the regions along the Congo River.

<i>Monodora tenuifolia</i> Species of plant in the family Annonaceae

Monodora tenuifolia is a species of plant in the family Annonaceae. It is native to equatorial Africa. George Bentham, the English botanist who first formally described the species, named it after its slender leaves.

Asteranthe lutea is a species of plant in the genus Asteranthe. It is native to Tanzania. Kaj Borge Vollesen, the botanist who first formally described the species in 1980, named it after its yellow petals.

<i>Monodora angolensis</i> Species of plant in the family Annonaceae

Monodora angolensis is a species of plant in the family Annonaceae. It is native to Angola, Cameroon, Central African Republic, Democratic Republic of the Congo, Equatorial Guinea, Gabon, Ivory Coast, Nigeria, Republic of the Congo, Sudan, Tanzania, Uganda, Zambia and Zaire. Friedrich Welwitsch, the Austrian botanist who first formally described the species, named it after Angola where he found it growing near the town of Pungo-Andongo.

<i>Pseuduvaria macrocarpa</i> Species of plant in the family Annonaceae

Pseuduvaria macrocarpa is a species of plant in the family Annonaceae. It is native to The Maluku Islands and New Guinea. William Burck, the Dutch botanist who first formally described the species using the synonym Meiogyne macrocarpa, named it after its large fruit.

References

  1. Cosiaux, A.; Couvreur, T.L.P.; Erkens, R.H.J. (2019). "Hexalobus bussei". IUCN Red List of Threatened Species . 2019: e.T132520196A132520522. doi: 10.2305/IUCN.UK.2019-3.RLTS.T132520196A132520522.en . Retrieved 20 November 2021.
  2. "Hexalobus bussei Diels". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved February 6, 2019.
  3. "Busse, Walter Carl Otto (1865-1933)". JSTOR Global Plants. ITHAKA. n.d. Retrieved February 6, 2019.
  4. Diels, L (1907). "Anonaceae africanae". Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie (in Latin and German). 39: 469–486.
  5. 1 2 Botermans, Marleen; Sosef, Marc S. M.; Chatrou, Lars W.; Couvreur, Thomas L. P. (2011). "Revision of the African Genus Hexalobus (Annonaceae)". Systematic Botany. 36 (1): 33–48. doi:10.1600/036364411X553108. hdl:1854/LU-8629047. ISSN   0363-6445. S2CID   85576103.
  6. Couvreur, Thomas L. P.; Botermans, Marleen; van Heuven, Bertie Joan; van der Ham, Raymond W. J. M. (2008). "Pollen morphology within the Monodora clade, a diverse group of five African Annonaceae genera". Grana. 47 (3): 185–210. doi: 10.1080/00173130802256913 . ISSN   0017-3134.