Biology:Fusaea decurrens
| Fusaea decurrens | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Magnoliales |
| Family: | Annonaceae |
| Genus: | Fusaea |
| Species: | F. decurrens
|
| Binomial name | |
| Fusaea decurrens R.E.Fr.
| |
Fusaea decurrens is a species of plant in the family Annonaceae. It is native to Peru.[2] Robert Elias Fries. The Swedish botanist who first formally described the species, named it after wings of the leaves that run down (decurrens in Latin)[3] the stem of the leaf.[4]
Description
It is a tree reaching 7 meters in height. Its petioles are 5-6 millimeters long. Its mature leaves are hairless, densely covered in warty growths, and shiny on their upper surfaces. The oblong leaves are 18-22 by 4–6.5 centimeters and reach an abrupt 1.5 centimeter-long point at their tip. The leaves narrow at their base to form long wings that run down the petioles. The leaves have 16-18 secondary veins from both sides of their midribs. The secondary veins emerge at near 90° angles from the midribs but curve to join one another 3-5 millimeters from the leaf margin. Its inflorescences have 2-3 green to yellow flowers. The flowers are on pedicels that are 1.5-2 millimeters long. The pedicels have a bract at their midpoint. Its round to oval sepals are warty on the outside, smooth on the inside, and 1.5 centimeters long. Its flowers have two rows of leathery petals. The petals are densely covered in silvery or rust-colored silky hairs on both surfaces. The outer petals are 2.5 by 1 centimeters. The inner petals are 3 by 1.3-1.7 centimeters. Its stamens are 2.7-3 millimeters long.[4][5]
Reproductive biology
The pollen of F. decurrens is shed as permanent tetrads.[6]
Habitat and distribution
It has been observed growing in forest habitats.[4]
References
- ↑ Botanic Gardens Conservation International (BGCI).; IUCN SSC Global Tree Specialist Group (2019). "Fusaea decurrens". IUCN Red List of Threatened Species 2019: e.T143323399A143323401. doi:10.2305/IUCN.UK.2019-1.RLTS.T143323399A143323401.en. https://www.iucnredlist.org/species/143323399/143323401. Retrieved 19 November 2021.
- ↑ "Fusaea decurrens R.E.Fr.". The Trustees of the Royal Botanic Gardens, Kew. n.d.. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:106439-2.
- ↑ Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
- ↑ 4.0 4.1 4.2 Fries, R.E. (1934). "Revision der Arten Einiger Anonaceen Gattungen III" (in Latin, German). Acta Horti Bergiani 12 (1): 207-208.
- ↑ Macbride, J. Francis (1938). Flora of Peru. Part 2, no.3. 13. Chicago: Field Museum of Natural History. p. 730. https://www.biodiversitylibrary.org/item/19764.
- ↑ Walker, James W. (1971). "Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae". Contributions from the Gray Herbarium of Harvard University 202: 1-130.
Wikidata ☰ Q15358171 entry
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