Eucalyptus jacksonii

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Eucalyptus jacksonii
Eucalyptus jacksonii in the "Valley of the Giants" (Walpole-Nornalup National Park)

Eucalyptus jacksonii in the "Valley of the Giants" ( Walpole-Nornalup National Park )

Systematics
Order : Myrtle-like (Myrtales)
Family : Myrtle family (Myrtaceae)
Subfamily : Myrtoideae
Tribe : Eucalypteae
Genre : Eucalyptus ( eucalyptus )
Type : Eucalyptus jacksonii
Scientific name
Eucalyptus jacksonii
Maiden

Eucalyptus jacksonii is a species ofthe myrtle family (Myrtaceae). It occurs only in Western Australia and is called "Red Tingle" there.

description

Eucalyptus jacksonii trunk hollowed out by forest fire in Walpole-Nornalup National Park . A path was built through the trunk for tourists.

Appearance and leaf

Eucalyptus jacksonii grows as a tree that can reach heights of up to 70 meters. The bark remains on the entire tree, is gray-brown to red-brown, fibrous and has glands. There are oil glands in the medulla.

In Eucalyptus jacksonii , heterophyllia is present. The leaves on middle-aged specimens have no petioles and the simple leaf blade is lanceolate, sickle-shaped, with entire margins matt gray-green. The glossy, two-colored (different on top and bottom) green leaves on adult specimens are relatively thin, lanceolate, sickle-shaped and tapering towards the base with a pointed upper end. The lateral nerves are hardly noticeable. The cotyledons ( cotyledons ) are kidney-shaped.

Inflorescence, flower and fruit

The flowering period in Western Australia extends from January to March. On the side of a pedicel-round, narrowly flattened or angular inflorescence stem with a diameter of up to 3 mm in cross-section stands a simple inflorescence that contains three to seven flowers.

The flower bud is egg-shaped or club-shaped and not floured or frosted blue-green. The hermaphrodite flower is radially symmetrical with a double flower envelope . The sepals form a calyptra that remains until the flower ( anthesis ) opens. The calyptra is conical, three times as long as the flower cup (hypanthium) and as wide as this. The flower cup and calyptra are ribbed. The flowers are white or cream in color.

The fruit is spherical. The disc is dented.

Occurrence

The natural range of Eucalyptus jacksonii are exclusively the south coast and coastal areas west of Albany in Western Australia . In Western Australia, Eucalyptus jacksonii occurs in the independent administrative districts of Denmark , Manjimup and Plantagenet in the South West and Great Southern regions . Eucalyptus jacksonii thrives on clay soils on slopes and in narrow gorges.

Taxonomy

The first description of Eucalyptus jacksonii was made in 1914 by Joseph Henry Maiden in Journal and Proceedings of the Royal Society of New South Wales , Volume 47, p 219. This type of material has the label " Deep River, Nornalup Inlet, Bow River, Irwin's Inlet, South West Australia. " on. The specific epithet jacksonii refers to the collector of the type material Sidney Wm. Jackson .

Individual evidence

  1. ↑ a b c d Eucalyptus jacksonii in the Western Australian Flora . Retrieved January 16, 2013.
  2. ↑ Specimen search results: Eucalyptus jacksonii at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved January 16, 2013.
  3. ↑ Eucalyptus jacksonii at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 17, 2013.
  4. ↑ APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government . Retrieved January 17, 2013.

Web links

Commons : Eucalyptus jacksonii  - collection of images, videos and audio files