Mitrephora fragrans

Mitrephora fragrans is a species of plant in the family Annonaceae. It is native to Borneo and The Philippines.[2] Elmer Drew Merrill, the American botanist who first formally described the species, named it after its large, fragrant (fragrans in Latin) flowers.

Mitrephora fragrans
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Mitrephora
Species:
M. fragrans
Binomial name
Mitrephora fragrans

Description

It is a tree reaching 8 to 10 meters in height. Its leathery leaves are 10-26 by 5-11 centimeters and have rounded or slightly pointed tips. Its fragrant flowers are solitary and yellow to orange. Its sepals are oval to oblong and 10-14 millimeters in length. Its mature outer petals are 5.5 by 4 centimeters, oblong and come to a point at their tip. The outside surface of the outer petals is hairy. Its inner petals have purple highlights, are 3 centimeters long and have an arched shape. The inside surface of the inner petals is hairy. It has numerous stamens that are 1.5 millimeters long. Its flowers have up to 10 carpels. Its carpels have 16-20 ovules.[3]

Reproductive biology

The pollen of M. fragrans is shed as permanent tetrads.[4]

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References
  1. World Conservation Monitoring Centre (1998). "Mitrephora fragrans". IUCN Red List of Threatened Species. 1998: e.T34238A9853017. doi:10.2305/IUCN.UK.1998.RLTS.T34238A9853017.en. Retrieved August 6, 2020.
  2. "Mitrephora fragrans Merr". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved February 14, 2019.
  3. Merrill, E.D. (1915). "Studies on the Philippine Anonaceae, I". The Philippine Journal of Science (in Latin and English). 10:pt.C: 227–264.
  4. Walker, James W. (1971). "Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae". Contributions from the Gray Herbarium of Harvard University. 202 (202): 1–130. JSTOR 41764703.



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