Angophora
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Angophora is a genus of plants withinthe myrtle family (Myrtaceae). The approximately 13 species occur only in Australia in the states of Queensland , New South Wales and Victoria .
description
Appearance and leaves
The Angophora species grow as trees and shrubs . Many species produce a red cinema in their wood and bark .
In Angophora species, heterophylly is present; the leaves on young and older specimens differ significantly in most species. The leaves are always arranged opposite one another. The youth leaves have stiff, simple, single-celled hairs ( trichomes ) and oil glands. The leaves on older specimens are usually bald or sometimes stiffly hairy.
Inflorescences and flowers
In determined or undetermined, thyrsic total inflorescences , three- to seven-flowered, doldy partial inflorescences stand together.
The hermaphroditic, radial symmetry flowers are four or five-fold. The four or five free sepals are reduced to permanent protrusions on the edge of the flower cup (hypanthium). The nailed petals cover each other like roof tiles in the bud . The flowers contain a large number of stamens in several rows; they are usually bent inwards in the flower bud. The dust bags, which are attached to the filament so that they can move, open lengthways with parallel slits. Three carpels are a dreifächerigen ovary adherent, which is enclosed is with exception of its upper end in the flower cups. Of the numerous ovules , only one matures into seeds in each ovary compartment , the rest form a kind of crumbly filling material.
Fruits and seeds
The parchment-like or thin-woody capsule fruits are ovoid or bell-shaped, often strongly ribbed and usually hairy. The narrow nectar disc is flat or flattened. The wide-elliptical, irregular flattened seeds contain two folded cotyledons ( cotyledons ).
Systematics
The genus Angophora was established by Antonio José Cavanilles in Icones et Descriptiones Plantarum , 4 (1), page 21, plate 338. As Lectotypusart in 1956 Angophora cordifolia Cav. by R. McVaugh in Nomenclatural notes on Myrtaceae and related families, Taxon , Volume 5, p. 137; this is a synonym of Angophora hispida (Sm.) Blaxell .
The genus Angophora belongs to the tribe Eucalypteae in the subfamily Myrtoideae within the family Myrtaceae .
There are around 13 species of Angophora . All of these are found in New South Wales, five species also in Queensland ( Angophora floribunda , Angophora leiocarpa , Angophora melanoxylon , Angophora subvelutina and Angophora woodsiana ) and only one ( Angophora floribunda ) also in Queensland and Victoria. The following types are known:
- Angophora bakeri C.C. Hall
- Angophora × clelandii Maiden = Angophora bakeri × Angophora hispida : New South Wales
- Angophora costata (Gaertn.) Hochr. ex Britten
- Angophora crassifolia (GJLeach) LASJohnson & KDHill
- Angophora × dichromophloia Blakely = Angophora costata × Angophora hispida
- Angophora euryphylla (LASJohnson ex GJLeach) LASJohnson & KDHill
- Angophora exul K.D. Hill
- Angophora floribunda (Sm.) Sweet
- Angophora hispida (Sm.) Blaxell
- Angophora inopina K.D. Hill
- Angophora leiocarpa (LASJohnson ex GJLeach) KRThiele & Ladiges
- Angophora melanoxylon F. Muell. ex RTBaker
- Angophora paludosa (GJLeach) KRThiele & Ladiges
- Angophora robur L.ASJohnson & KDHill
- Angophora subvelutina F. Muell.
- Angophora woodsiana F.M.Bailey
use
Angophora costata and Angophora hispida are used as ornamental plants .
Individual evidence
- ↑ a b c d e f KD Hill: Entry in New South Wales Flora Online . last accessed on December 28, 2012
- ↑ Entry in Tropicos . last accessed on December 28, 2012
- ↑ a b Entry in Australian Plant Name Index = APNI, 2006. Last accessed on December 28, 2012
- ^ Angophora in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Last accessed December 28, 2012
- ↑ Rafaël Govaerts (ed.): Angophora. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved April 28, 2020.
- ↑ Gordon Cheers (Ed.): Botanica. The ABC of plants. 10,000 species in text and images . Könemann Verlagsgesellschaft, 2003, ISBN 3-8331-1600-5 (therein pages 94-95).
