Eucalyptus pilularis
Eucalyptus pilularis
Eucalyptus pilularis is a flowering plant in the myrtle family ( Myrtaceae ). It occurs on the coast of New South Wales and its hinterland, as well as in southeast Queensland, where it is called " Blackbutt ".
Description
Appearance and leaf
Eucalyptus pilularis grows as a tree reaching heights of growth of up to 70 meters. The bark remains on the entire trunk is gray-brown and fibrous to short-fibred. On the upper parts of the tree is white to gray and peels in long strips. The bark of young branches is green. Neither in the marrow of the young branches still in the bark, there are oil glands.
In Eucalyptus pilularis is available Heterophyllie. In young specimens the leaves are sessile, broadly lanceolate and pale green. At middle-aged specimens the leaves with a length of about 17 cm and a width of about 4 cm are also wide - lanceolate, straight, entire, dull and green. In adult specimens the leaves are divided into petiole and leaf blade. Your petiole is 10 to 20 mm long. Your on top and bottom of the same color glossy green leaf blade is lanceolate with a length of 9 to 16 cm and a width of 1.5 to 3 cm, relatively thick, straight, has a blunt Spreitenbasis and a sharp or pointed upper end. The raised lateral nerves go from average distances at an acute angle from the midrib. The cotyledons ( cotyledons ) are kidney-shaped.
Inflorescence and flower
Constantly on a page at a length of 10 to 17 mm and a diameter of up to 3 mm in cross section, narrow flattened or angular inflorescence stem are in a simple inflorescence about seven to fifteen flowers together ( see photo). The flower stalks are 3-6 mm long and terete. The non- blue-green floured or frosted flower buds are club- or spindle-shaped with a length of 7 to 10 mm and a diameter of 3 to 5 mm. The sepals form a calyptra, which remains available until anthesis. The smooth calyptra conical or beaked, two to three times as long as the smooth flower cup ( hypanthium ) and as wide as this one. The flowers are white or off- white.
Fruit
The stalked crop is spherical with a length of 6 to 11 mm and a diameter of 7 mm to 11 mm, hemispherical or ovoid and vierfächrig. The disc is flat or pressed, the fruit or compartments are included at the level of the edge.
Occurrence
The natural range of Eucalyptus pilularis is the entire coast of New South Wales and its hinterland as well as the south east of Queensland.
Eucalyptus pilularis thrives widespread and often dominant in wet sclerophyll or grassy, bright coastal forest on lighter, moderately fertile soils.
Ecology
Eucalyptus pilularis has a high proportion of many endangered plant communities, such as the " Blue Gum High Forest", the " Illawarra Lowlands ", the " Bangalay Sandy Forest" and the grassy, open woods.
Eucalyptus pilularis is one of the food plants of the koalas.
Taxonomy
The first publication of Eucalyptus pilularis was made in 1797 by James Edward Smith, entitled Botanical Characters of Some Plants of the Natural Order of Myrti in Transactions of the Linnean Society of London, Volume 3, pp. 284 Eucalyptus pilularis Sm synonyms for are: Eucalyptus persicifolia Lodd. , G.Lodd. & W.Lodd. , Eucalyptus semicorticata F.Muell. , Eucalyptus incrassata Sieber ex DC. nom. illeg. , Eucalyptus pilularis Sm var pilularis, Eucalyptus ornata Benth. nom. inval. per. syn., Eucalyptus pilularis var typica Dominguez nom. inval ..
Known single copies
In the Middle Brother National Park, there are two well-known, old specimens of Eucalyptus pilularis: " Benaroon " is 64 meters high and has at chest height with a trunk diameter of 4.1 meters. "Bird Tree" has a height of 69 meters and a diameter at breast height of 3.59 meters. In the near Bulli, a 85 meter high copy was made.
Use
The heartwood of Eucalyptus pilularis is yellow - brown to light brown, hard and durable. Its specific weight is about 900 kg / m³. The wood of Eucalyptus pilularis is used to make posts, railroad ties, flooring, decks, panels, connections, and wood chips.