Angophora
Angophora is a genus of flowering plants in the myrtle family ( Myrtaceae ). The approximately 13 species occur in the states of Queensland, New South Wales and Victoria in Australia only.
Description
Appearance and leaves
The Angophora species grow as trees and shrubs.
In Angophora species is present Heterophyllie; the leaves of young and older specimens differ significantly in most species. The leaves are always arranged on opposite sides. The youth leaves have stiff simple, unicellular hairs ( trichomes ) and oil glands. The leaves on older trees are usually bare or sometimes hairy stiff.
Inflorescences and flowers
In determinate or indeterminate, thyrsischen total inflorescences three to siebenblütige, doldige part inflorescences stand together.
The hermaphrodite, radial symmetry flowers are four - or fünfzählig. The four or five free sepals are reduced to permanent protrusions at the edge of the flower cup ( hypanthium ). The spiked petals overlap dachzieglig in the bud. The flowers contain a large number of stamens in several rows; they are bent in the Blütenknope usually inward. The movable on the stamens attached anthers open to the parallel slots of length. Three carpels are fused to a dreifächerigen ovary, which is which included, with the exception of its upper end in the flower cups. Of the numerous ovules matures only one seed to approach each ovary compartment, the remaining form a kind of crumbly filling material.
Fruit and seeds
The parchment-like or thin - woody capsule fruits are ovoid or bell-shaped, often strongly ribbed and usually hairy stiff. The narrow nectar disc is flat or flattened. The broad - elliptical, irregular, flattened seeds contain two folded cotyledons ( cotyledons ).
System
The genus Angophora was established by Antonio José Cavanilles in Icones Plantarum et Descriptiones, 4 ( 1), p 21, Table 338. As Lectotypusart 1956 Angophora cordifolia Cav was. defined by R. McVaugh in nomenclatural notes on Myrtaceae and related families, Taxon, Volume 5, p 137; this is now a synonym of Angophora hispida (Sm. ) Blaxell.
The genus belongs to the tribe Angophora Eucalypteae in the subfamily Myrtoideae within the Myrtaceae family.
There are about 13 species of Angophora:
- Angophora bakeri C.C.Hall
- Angophora × clelandii Maiden
- Angophora costata ( Gaertn. ) Hochr. ex Britten
- Angophora × dichromophloia Blakely
- Angophora exul K.D.Hill
- Angophora floribunda (Sm. ) Sweet
- Angophora hispida (Sm. ) Blaxell
- Angophora inopina K.D.Hill
- Angophora leiocarpa ( LASJohnson ex GJLeach ) KRThiele & Chocoholics
- Angophora melanoxylon F.Muell. ex R.T.Baker
- Angophora robur L.A.S.Johnson & K.D.Hill
- Angophora subvelutina F.Muell.
- Angophora woodsiana F.M.Bailey
Use
Angophora costata Angophora hispida and are used as ornamental plants.