Corymbia gummifera
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Corymbia gummifera , illustration |
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| Corymbia gummifera | ||||||||||||
| ( Gaertn. ) KDHill & LASJohnson |
Corymbia gummifera is a species of the genus Corymbia withinthe myrtle family (Myrtaceae). It occurs on the east coast of Australia , from southeast Queensland to east Victoria , and is called "Red Bloodwood" there.
description
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Appearance and leaf
Corymbia gummifera grows as a tree that reaches heights of up to 35 meters. The bark remains on the smaller branches or on the entire tree, is checkerboard-like and matt red-brown to gray-brown. On the upper parts of the tree it is creamy white to grayish brown and peels in short bands. The small twigs have a green bark . There are oil glands in the pith, but not in the bark.
In Corymbia gummifera , heterophyllia is present. The leaves are always divided into a petiole and a leaf blade. The leaf blade on young specimens is oval to circular or lanceolate to broadly lanceolate and has simple hairs and stiff glandular hairs. On medium-old specimens, the leaf blade is about 20 centimeters long and about 0.7 centimeters wide, lanceolate to broadly lanceolate, straight, entire and shiny dark green. The petiole on adult specimens is narrowly flattened or channel-shaped with a length of 10 to 23 mm. The leaf blade on adult specimens can be thin or relatively thick, is lanceolate to broadly lanceolate with a length of 10 to 16 centimeters and a width of 2 to 4 centimeters, sometimes curved, with a tapering or round blade base and a pointed or pointed top The End. The top and bottom of the leaves are shiny or dull green in different ways. The side nerves, which are barely recognizable, leave the median nerve at small intervals at an obtuse angle. On each half of the leaf there is a pronounced, continuous, so-called intramarginal nerve; it runs at a small distance along the edge of the leaf. The cotyledons ( cotyledons ) are almost circular.
Inflorescence and flower
At the end of an inflorescence stem with a length of 17 to 30 mm in cross section, there is a compound inflorescence , which consists of dold-like partial inflorescences , each with about seven flowers. The flower stalk is 9 to 14 mm long in cross section with a round stem.
The not blue-green floured or frosted flower bud is club-shaped or pear-shaped with a length of 9 to 11 mm and a diameter of 5 to 6 mm. The sepals form a calyptra , which is preserved until flowering ( anthesis ). The smooth calyptra is hemispherical or conical as well as slightly beak-shaped, shorter than the smooth flower cup (hypanthium) and as wide as this. The flowers are white or cream in color.
Fruit and seeds
The stalked fruit has a length of 12 to 20 mm and a diameter of 5 to 6 mm urn-shaped and three- to four-fan. The disc is indented, the fruit compartments are included.
The regular and laterally flattened, boat-shaped seed has a reticulated, matt to silk-matt, red-brown seed coat. The hilum is at the top of the seed.
Occurrence
The natural range of Corymbia gummifera is the east coast of Australia from south-east Queensland to the far east of Victoria , as well as the adjacent table country in the east and north-east of New South Wales to the west .
Corymbia gummifera predominantly thrives in dry hard- leaved forests or light forests on sandy or sandstone soils with a low nutrient content.
Taxonomy
It was first published in 1788 by Joseph Gärtner under the name ( Basionym ) Meterosideros gummifera Gaertn. in De Fructibus et Seminibus Plantarum , Volume 1, p. 170, Plate 34, Figure 1. The type material has the inscription ex herbario Banksiano . The new combination to Corymbia gummifera (Gaertn.) KDHill & LASJohnson took place in 1995 under the title Systematic studies in the eucalypts. 7. A revision of the bloodwoods, genus Corymbia (Myrtaceae) in Telopea , Volume 6 (2-3), p. 233. Other synonyms for Corymbia gummifera (Gaertn.) KDHill & LASJohnson are: Eucalyptus gummifera (Gaertn.) Hochr. , Eucalyptus corymbosa Sm. , Eucalyptus purpurascens var. Petiolaris DC. , Eucalyptus gummifera (Gaertn.) Hochr. var. gummifera , Eucalyptus corymbosa Sm. var. corymbosa , Eucalyptus corymbosus Cav. orth. var., Eucalyptus longifolia Link ex Maiden nom. inval., Eucalyptus oppositifolia Desf. nom. inval.
Individual evidence
- ↑ a b Specimen search results: Corymbia gummifera at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved February 13, 2013
- ↑ a b c APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved February 13, 2013
- ↑ a b c d e f g h K. Hill: Corymbia gummifera (Gaertn.) KDHill & LASJohnson at New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved February 13, 2013
- ↑ a b c d e f g h i j Corymbia gummifera at EucaLink - A Web Guide to the Eucalypts . Retrieved February 13, 2013
- ↑ Corymbia gummifera at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed February 13, 2013.
- ↑ Rafaël Govaerts (Ed.): Corymbia gummifera. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 13, 2013.
