Eucalyptus amygdalina
Eucalyptus amygdalina is a flowering plant in the myrtle family ( Myrtaceae ). It occurs in Tasmania, where it is called "Black Peppermint ".
Description
Appearance and leaf
Eucalyptus amygdalina growing in the habit of mallee eucalypts, this is a habit that is more shrub-like than tree-like, there are usually multiple strains available that form a Lignotuber; achieved as a tree, the growth heights of up to 30 meters. The bark is left on the trunk and larger branches, sometimes on the smaller branches smooth, gray or gray - brown and short-fibred. On the upper parts of the tree it is smooth, white to gray or brownish and sometimes peels off in strips. Oil glands there are both in the marrow of the young branches as well as in the bark.
In Eucalyptus amygdalina is available Heterophyllie. In young specimens the seated leaves with a length from 2.8 to 5.5 cm and a width of 0.2 to 1.1 cm are lanceolate, sichtelförmig curved, entire and green. At middle-aged specimens the opposite, seated leaves are lanceolate, straight, entire and teal flour dusted or frosted. The petioles of adult specimens are narrow flattened or channel-shaped with a length of 0.4 to 2.0 cm. The on top and bottom of the same color matt green, petiolate leaf blades of adult specimens are linear to narrow - lanceolate, relatively thin, curved like a sickle with a length of 5.5 up to 12 cm and a width of 0.4 to 1.2 cm, taper towards the Spreitenbasis and have a sharp or pointed upper end. The barely visible lateral nerves going off into a very acute angle from the midrib. The parallel to the blade edge extending, so-called Inter marginal nerves are clearly separated from this. In the leaf area few are available to many oil glands. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
Page Constantly terete with a length of 4 to 10 mm and a width of up to 3 mm in cross section on a narrow flattened or angular inflorescence stem are in a simple inflorescence about 11 to 15 flowers together. The flower buds are club-shaped and not blue green flour dusted or frosted to green to yellow and stalked and smooth to slightly verrucose. The sepals form a calyptra, which remains available until flowering ( anthesis ). The smooth calyptra is hemispherical, as long and as wide as the smooth flower cup ( hypanthium ). The flowers are white or off- white.
Fruit and seeds
The fruit is hemispherical with a diameter of 5 to 7 mm, kneecaps or pear-shaped and three to vierfächrig. The disc is flat or slightly raised, the fruit trays are included or available on the height of the rim.
The seeds are pyramid-shaped or cubic with a length of 1 to 2 mm. The brown seed coat is smooth on the back. The hilum is located at the upper end.
Occurrence
The natural range of Eucalyptus amygdalina is Tasmania, the type in the central and eastern parts of the island is more common than in the West.
System
The first description of Eucalyptus amygdalina was made in 1806 by Jacques Julien de Houtou Labillardiere in Novae Plantarum Specimen Hollandiae, Volume 2, p 14 The type material has the label " in capite Van Diemen " on. The specific epithet amygdalina is derived from the Latin word for almond amygdala. Eucalyptus amygdalina Labill synonyms for. are Eucalyptus salicifolia Cav., Eucalyptus glandulosa Desf. , Eucalyptus amygdalina Labill. var amygdalina, Eucalyptus salicifolia Cav. var salicifolia. Eucalyptus salicifolia Cav. orth var, Eucalyptus amygdalina var alpina Maiden, Eucalyptus amygdalina var numerosa Maiden, Eucalyptus calyculata Link ex Maiden, Eucalyptus numerosa Maiden and Eucalyptus globularis DC. nom. inval ..
Eucalyptus amygdalina forms with various other species of eucalyptus natural hybrids, as with Eucalyptus coccifera, Eucalyptus linearis, Eucalyptus nitida, Eucalyptus pauciflora, Eucalyptus pulchella, risdonii Eucalyptus, Eucalyptus sieberi, Eucalyptus and Eucalyptus sieberiana simmondsii.
Use
The heartwood of Eucalyptus amygdalina is used for the production of lightweight construction, joinery and fences, as well as firewood. From the foliage leaves Eucalyptus oil is extracted.