Eucalyptus amygdalina
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Eucalyptus amygdalina |
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Eucalyptus amygdalina is a species ofthe myrtle family (Myrtaceae). It occurs in Tasmania and is called "Black Peppermint" there.
description
Appearance and leaf
Eucalyptus amygdalina grows in the form of the mallee - eucalyptus , this is a growth form that is more shrub -like than tree-shaped , there are usually several trunks that form a lignotuber ; as a tree that reaches heights of up to 30 meters. The bark remains on the trunk and the larger branches, sometimes smooth on the smaller branches, is gray or gray-brown and has short fibers. On the upper parts of the tree it is smooth, white to gray or brownish, and sometimes peels in ribbons. There are oil glands both in the pith of the young branches and in the bark.
In Eucalyptus amygdalina is Heterophyllie ago. On young specimens, the sitting leaves are 2.8 to 5.5 cm long and 0.2 to 1.1 cm wide and lanceolate, sickle-shaped, with entire margins and green. On middle-aged specimens, the opposite, sitting leaves are lanceolate, straight, with entire margins and blue-green floured or frosted. The leaf stalks on adult specimens are narrowly flattened or channel-shaped with a length of 0.4 to 2.0 cm. The stalked leaf blades of the same color on the top and bottom of the adult specimens are dull green, with a length of 5.5 to 12 cm and a width of 0.4 to 1.2 cm, linear to narrow-lanceolate, relatively thin, curved sickle-shaped, taper towards the base of the blade and have a pointed or pointed upper end. The side nerves, which are barely recognizable, extend from the median nerve at a very acute angle. The so-called intermarginal nerves, which run parallel to the leaf margin, are clearly separated from it. There are few or many oil glands in the leaf surfaces. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
Pendant on a 10 mm to a length of 4 and a width of up to 3 mm stalk round cross-section, narrow-edged flattened or inflorescence stem bear a simple inflorescence about 11 to 15 flowers together. The flower buds are club-shaped and not floured or frosted blue-green, but green to yellow and stalked and smooth to slightly warty. The sepals form a calyptra that remains in place until flowering ( anthesis ). The smooth calyptra is hemispherical, as long and as wide as the smooth flower cup (hypanthium). The flowers are white or creamy white.
Fruit and seeds
With a diameter of 5 to 7 mm, the fruit is hemispherical, kneecap-shaped or pear-shaped and three- to fourfold. The disc is flat or slightly raised, the fruit compartments are enclosed or are level with the edge.
The seeds are pyramidal or cubic with a length of 1 to 2 mm. The brown seed coat is smooth on the back. The hilum is at the top.
Occurrence
The natural range of Eucalyptus amygdalina is Tasmania , with the species occurring more frequently in the center and east of the island than in the west.
Systematics
The first description of Eucalyptus amygdalina was made in 1806 by Jacques Labillardière in Novae Hollandiae Plantarum Specimen , Volume 2, page 14. The type material has the label " in capite Van Diemen " link. The specific epithet amygdalina is derived from the Latin word amygdala for almond . Synonyms for Eucalyptus amygdalina Labill. 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 is natural with various other species of eucalyptus hybrids , so with Eucalyptus coccifera , Eucalyptus linearis , Eucalyptus nitida , Eucalyptus pauciflora , Eucalyptus pulchella , Eucalyptus risdonii , Eucalyptus sieberi , Eucalyptus sieberiana and Eucalyptus simmondsii .
use
The heartwood of Eucalyptus amygdalina is used for the production of light constructions, carpentry and fences as well as firewood. Eucalyptus oil is extracted from the leaves.
Individual evidence
- ↑ a b Specimen search results: Eucalyptus amygdalina at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved March 8, 2013
- ↑ a b c d e APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved March 8, 2013
- ↑ a b c d e f g h i j k l m n o Eucalyptus amygdalina at EUCLID: Eucalypts of Southern Australia by MIH Brooker, AV Slee & JR Connors. Retrieved March 8, 2013
- ↑ a b c d e f g h i j k l m Eucalyptus amygdalina at EucaLink - A Web Guide to the Eucalypts . Retrieved March 8, 2013.
- ↑ Eucalyptus amygdalina at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 8, 2013.
- ↑ a b Rafaël Govaerts (Ed.): Eucalyptus amygdalina. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 8, 2013.
