Annona angustifolia
Annona angustifolia is a species of plant in the Annonaceae family. It is native to Brazil.[1] Jacques Huber, the Swiss-Brazilian botanist who first formally described the species, named it after its narrow (angustus in Latin) leaves (folium in Latin).[2][3]
| Annona angustifolia | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Magnoliids |
| Order: | Magnoliales |
| Family: | Annonaceae |
| Genus: | Annona |
| Species: | A. angustifolia |
| Binomial name | |
| Annona angustifolia | |
Description
It is a bush with slender branches. Its leaves are arranged in two opposite rows on the branches. Its narrow, smooth, membranous leaves are 6-12 centimeter by 1.2-1.5 centimeters. Its solitary flowers are on 1 centimeter long pedicels that have a small breacteole about half way up from their base. Its triangular sepals are 2 by 3 millimeters, come to a tapering point at their tips, and are covered in short rust-colored hairs. Its thick exterior petals are round, 1.5 by 1.5 centimeters, concave, and have rust-colored hairs on their inner surface. Its inner petals are thinner, come to a sharp point a their tips and are 8 millimeters long. Its flowers have numerous stamens with filaments that are about 0.5 millimeters long, and 1.5 millimeter long, yellow anthers. The tissue connecting the lobes of the anther forms a cap like structure at its top. Its flowers have numerous ovaries with silky yellow styles and white stigmas.[3]
Reproductive biology
The pollen of Annona angustifolia is shed as permanent tetrads.[4]
Distribution and habitat
It grows in forested areas.[3]
References
- "Annona angustifolia Huber". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved December 22, 2018.
- Stearn, William (2004). Botanical Latin. Portland, Ore. Newton Abbot: Timber Press David & Charles. ISBN 9780881926279.
- Huber, J. (1909). "Materiaes para a Flora Amazonica VII. Plantae Duckeanae Austro-guyanenses". Boletim do Museu Goeldi (Museu Paraense) de Historia Natural e Ethnographia (in Portuguese and Latin). 5: 294–436.
- Walker, James W. (1971). "Pollen Morphology, Phytogeography, and Phylogeny of the Annonaceae". Contributions from the Gray Herbarium of Harvard University. 202: 1–130. JSTOR 41764703.