Eucalyptus jacksonii

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

Eucalyptus jacksonii is a flowering plant within the myrtle family ( Myrtaceae ). You only occurs in Western Australia, where it is called "Red Tingle ".

Description

Appearance and leaf

Eucalyptus jacksonii grows as a tree reaching heights of growth of up to 70 meters. The bark remains on the entire tree is gray-brown to reddish-brown, fibrous and has glands. In bone marrow oil glands are present.

In Eucalyptus jacksonii is available Heterophyllie. The leaves of medium old specimens have no petioles and simple leaf blade is lanceolate, falcate, entire dull gray - green. The glossy, two-color ( ie different on top and bottom ) green leaves on adult specimens are relatively thin, lanceolate, falcate and towards the base, tapering to a pointed top. The lateral nerves are hardly recognizable. The cotyledons ( cotyledons ) are kidney-shaped.

Inflorescence, flower and fruit

The flowering period extends into Western Australia from January to March. Constantly on a page terete, with a diameter of up to 3 mm in cross section, narrowly flattened or angular inflorescence stem is a simple inflorescence, which contains three to seven flowers.

The flower bud is ovoid or club-shaped and not blue - green flour dusted or frosted. The hermaphrodite flower is radial symmetry with a double perianth. The sepals form a calyptra, which up to the opening of the flower ( anthesis ) remains. The calyptra conical, three times as long as the flower cup ( hypanthium ) and as wide as this. Flower cups and Calyptra are ribbed. The flowers are white or cream-colored.

The fruit is spherical. The disc is pressed.

Occurrence

The natural range of Eucalyptus jacksonii are the South Coast and coastal areas west of Albany in Western Australia. In Western Australia Eucalyptus jacksonii comes to independent administrative districts Denmark, Manjimup and Plantagenet ago in the regions of Southwest and Great Southern. 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 The type material has the label " Deep River, Nornalup Inlet, Bow River, Irwin 's Inlet, South West Australia. "on. The specific epithet refers to jacksonii the collector of the type material Sidney Wm Jackson.