Gerrardina
| Gerrardina | ||||||||||||
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Gerrardina foliosa |
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| Systematics | ||||||||||||
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| Scientific name of the family | ||||||||||||
| Gerrardinaceae | ||||||||||||
| Alford | ||||||||||||
| Scientific name of the genus | ||||||||||||
| Gerrardina | ||||||||||||
| Olive. |
Gerrardina is the only genus of the family of Gerrardinaceae in the small order of huerteales . The Gerrardina species arenative toeastern tropical and southern Africa .
description
Gerrardina species are small trees or shrubs ; they are climbing sometimes. The alternate leaves are simple. The leaf margin is notched or serrate. There are stipules present.
The flowers are few together in grape-like zymous inflorescences . The hermaphrodite, radially symmetrical flowers are five-fold. The five sepals are fused bell-shaped. There are petals available. There is a cup-shaped disc. There is only one circle with five free, fertile stamens ; the outer circle is missing. Two carpels have become a top permanent ovary adherent to four ovules . The stylus ends in an almost heady or tiny two-branched scar.
One to four-seeded, dry or fleshy berries are formed. The endosperm is fleshy.
Systematics
This genus was previously assigned to the Flacourtiaceae or Salicaceae . The Gerrardinaceae family was first established by Mac H. Alford in 2006 and contains only one genus.
In the genus Gerrardina Dunn , only two species are distinguished:
- Gerrardina eylesiana Milne-Redhead : it isnative toeastern tropical Africa ( Tanzania , Malawi and Zimbabwe ).
- Gerrardina foliosa olive. : It occurs only in Natal and Swaziland .
swell
- The family of Gerrardinaceae in APWebsite. (As of end of 2008)
- Mac H. Alford: The Gerrardinaceae Family in the Tree of Life Project, 2007.
- MH Alford: Gerrardinaceae: A new family of African flowering plants unresolved among Brassicales, Huerteales, Malvales, and Sapindales. Taxon 55, 2006, pp. 959-964.
- H. Sleumer: Gerrardina in Flora of Tropical East Africa , 1975.
- H. Wild: Gerrardina in the Flora Zambesiaca, Volume 1, 1960, p. 261.
- Entry in the Flora of Zimbabwe. (engl.)