Emmenosperma
Emmenosperma alphitonioides, foliage
Emmenosperma is a genus of the family of the buckthorn family ( Rhamnaceae ). The five species of the genus are native to Australia, New Zealand, New Caledonia and the Fiji Islands.
Description
Emmenosperma are evergreen trees or shrubs, unlike many other genera of the family lacking spines or thorns. The leaves are arranged opposite one another or against time.
The inflorescences are cymes trichotome, which in turn are achselbürtigen or terminal panicles. The flower cup is cup-shaped, the intergrown with the flower cups discus thin. The ovary is half-submerged - to upper constant and has two to three compartments.
The fruits are capsules. The seeds are rich in protein and survive even after the fall of the pericarp nor the former flower stalk.
Dissemination
Emmenosperma are common in Australia, New Zealand, New Caledonia and the Fiji Islands.
System
The genus was first described in 1862 by Ferdinand von Mueller, their exact position within the buckthorn plants is unclear. The genus includes five species, including:
- Emmenosperma alphitonioides
- Emmenosperma cunninghamii
- Emmenosperma pancherianum