Annona haitiensis

Annona haitiensis is a species of plant in the Annonaceae family. It is native to the Dominican Republic and Haiti.[1] Robert Elias Fries, the Swedish botanist who first formally described the species, named it after Haiti where the specimen he examined was collected.

Annona haitiensis
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Genus: Annona
Species:
A. haitiensis
Binomial name
Annona haitiensis

Description

It is a bush reaching 1.5 meters in height. Its membranous leaves are 4-6 by 0.7-1.5 centimeters and are rounded or shallowly notched at their tip. The leaf margins are slightly rolled under. The leaves are dull, pale green on their underside. The leaves have 8-10 pairs of secondary veins emanating from their midribs. Its petioles have a channel on their upper surface, are covered with fine hairs, often curve backwards, and are 2-2.5 millimeters long. Its solitary (sometimes in pairs) flowers are on 1-2 millimeter peduncles that emerge from older leafless branches. Its triangular sepals are 1 millimeters long and covered in brown shaggy hairs. Its 3 oblong, outer petals are 1 centimeter long with rounded tips. The petals have shaggy brown hair on their outer surface. Its stamen are 1.5-1.7 millimeters long with anthers that are 1 millimeters long. Its pistils are 1.7 millimeters long with hairy ovaries and heart-shaped stigmas.[2]

Reproductive biology

The pollen of A. haitiensis is shed as permanent tetrads.[3]

References
  1. "Annona haitiensis R.E.Fr". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. n.d. Retrieved June 28, 2019.
  2. Fries, R.E. (1927). "Die von Ekman in Westindien gesammelten Anonaceen" [The Anonacea collected by Ekman in the West Indies]. Arkiv för Botanik (in German and Latin). 21A (9): 1–25.
  3. 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.
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