Colleter (botany)

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Several hair types occur on plants of Loganiaceae, including multicellular secretory colleters shown here in cross-section (C, D, H). Hairs of Loganiaceae EP-IV2-012.png
Several hair types occur on plants of Loganiaceae, including multicellular secretory colleters shown here in cross-section (C, D, H).

Colleters are plant structures, multicellular secretory hairs, found in groups near the base of petioles, on stipules, and on sepals. They are found in members of the Loganiaceae and Rubiaceae families. [1] [2]

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The Rubiaceae are a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules and sympetalous actinomorphic flowers. The family contains about 13,500 species in about 620 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution; however, the largest species diversity is concentrated in the tropics and subtropics. Economically important genera include Coffea, the source of coffee, Cinchona, the source of the antimalarial alkaloid quinine, ornamental cultivars, and historically some dye plants.

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Gentianales is an order of flowering plants, included within the asterid clade of eudicots. It comprises more than 20,000 species in about 1,200 genera in 5 families. More than 80% of the species in this order belong to the family Rubiaceae.

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Genipa is a genus of trees in the family Rubiaceae. This genus is native to the American tropical forests.

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<i>Bouvardia</i> Genus of flowering plants

Bouvardia is a genus of flowering plants in the family Rubiaceae. It contains about 50 species of evergreen herbs and shrubs native to Mexico and Central America, with one species extending into the southwestern United States. The genus is named in honor of Charles Bouvard (1572–1658), physician to Louis XIII, and superintendent of the Jardin du Roi in Paris.

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Vanguerieae is a tribe of flowering plants in the family Rubiaceae and contains about 655 species in 30 genera. It is one of the most species-rich groups within the family and it is distributed across the Paleotropics.

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Anthospermeae is a tribe of flowering plants in the family Rubiaceae and contains 208 species in 12 genera. Its representatives are found in the Southern Hemisphere, with the exception of the two species of the genus Phyllis. At least two genera, namely Coprosma and Galopina are anemophilous.

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Coffea racemosa, also known as racemosa coffee and Inhambane coffee, is a species of flowering plant in the family Rubiaceae. It has naturally low levels of caffeine, less than half of that found in Coffea arabica, and a quarter of that in Robusta coffee. It is endemic to the coastal forest belt between northern KwaZulu-Natal in South Africa and Zimbabwe, found in an area less than 150 km2 (58 sq mi) in size. It was widely cultivated by the Portuguese during the 1960-1970s in Mozambique; currently there are only two plantations, at Ibo Island and in Hluhluwe, which remain.

References

  1. Klein, D.E.; Moreira Gomes, V.; Da Silva-Neto, S.J.; Da Cunha, M. (2004), "The Structure of Colleters in Several Species of Simira (Rubiaceae)", Annals of Botany, 94 (5): 733–740, doi:10.1093/aob/mch198, PMC   4242219 , PMID   15374836
  2. Hickey, M.; King, C. (2001), The Cambridge Illustrated Glossary of Botanical Terms, Cambridge University Press