Olea europea

Taxonomy

Family

Oleaceae

Genus

Olea

Species

europea

Distribution

South Europe, Mediterranean area, North Africa, West Asia, America, Australia and New Zealand. In Italy natural and cultivated (0-900 m).

Utility

Food, oil, fine wood, as ornament and biodiversity. Medicinal and cosmetic purposes.

Flowering time

IV-VI

PollenPollenDefinition: The pollen grain is the Gymnosperms and Angiosperms male germ element. Its function relates to the sexual fertilization....
characteristics

Group

MonadMonadDefinition: solitary pollen grain derived from a tetrad or polyad, which normally break down into individual pollen grains....

Simmetry

Radial

PolarityPolarityDefinition: pollen characteristics to possess two endowed poles of equal or different features....

IsopolarIsopolarDefinition: pollen grain with the proximal pole like the distal one....

ExineExineDefinition: external layer of the sporoderm consisting of ectexine plus endexine....
sculpturing

ReticulateReticulateDefinition: sporoderm sculture with reticulum-shaped elements and lumina greater than 1 um. This elements constitute the tectum...
- HeterobrochateHeterobrochateDefinition: sculture with unequal brochi of reticulum....

ApertureApertureDefinition: opening to allow pollen tube germination. Zone of pollen grain surface in which the exine thins or completely lacks....

TricolporateTricolporateDefinition: ref. aperture. Pollen grain with three apertures formed by colpi and pori....

Polar viewPolar viewDefinition: view from which it is possible to observe the shape, sculpture, cytoplasm and apertures of a pollen grain in polar position....

SubtriangularSubtriangularDefinition: type of pollen shape in polar view....

Equatorial view

SuboblateSuboblateDefinition: pollen with the P/E ratio between 0.75 to 0.88 and slightly flattened at the poles....

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