Eucalyptus ovata
Eucalyptus ovata
Eucalyptus ovata is a plant in the myrtle family ( Myrtaceae ). It comes in southern New South Wales, on the south coast of Victoria, in the south-eastern South Australia and Tasmania before and is there "Blue- leaved Sally ", " Marrawah Gum", " Black Gum ," " Swamp Gum", "White Swamp Gum " or " Large flowered Swamp Gum " called.
Description
Appearance and leaf
Eucalyptus ovata grows as a tree reaching heights of growth of up to 30 meters. The bark on the lower part of the stem or the entire tree is smooth, gray-black and short-fibred. On the upper parts of the tree it is smooth, white, pink or yellow and peels in long, wide strips. The bark of the branches is green. Oil glands are there in the bark, but not in the marrow of the young branches.
In Eucalyptus ovata is present Heterophyllie. The leaves are always divided into petiole and leaf blade. In young specimens the leaf blade is elliptic, ovate later, and matte medium grün.An old specimens, the leaf blade with a length of about 19 cm and a width of about 8.5 cm and later also elliptical ovate, straight, entire, dull and green. The petiole of adult specimens is narrow flattened or channel-shaped with a length of 17 to 25 mm. The same color on top and bottom glossy green leaf blade of adult specimens is broadly lanceolate or ovate with a length of 6 to 15 cm and a width of 1.5 to 5 cm, straight, relatively thick, tapering to the Spreitenbasis and has a blunt or rounded upper end. The raised lateral nerves go from average distances at an acute angle from the midrib. The cotyledons ( cotyledons ) are wrong - kidney-shaped.
Inflorescence and flower
Constantly on a page to 14 mm long, terete in cross section inflorescence stem standing together about seven flowers in a simple inflorescence. If they exist up to 5 mm long flower stems are terete. The non- blue-green floured or frosted flower buds are ovoid or spindle-shaped with a length of 6 to 11 mm and a diameter of 4 to 6 mm. The sepals form a calyptra, which drops early. The smooth calyptra conical or beaked, one to two times as long as the smooth flower cup ( hypanthium ) and as wide as this. The flowers are white or off- white.
Fruit
The stalked fruit is conical or bell-shaped, with a length and a diameter of 4-7 mm each and three to vierfächrig The disc is flat, the fruit trays are at the height of the rim.
Occurrence
The natural distribution areas of Eucalyptus oleosa located in the southern part of the coast and southern tablelands of New South Wales south of Sydney, on the south coast of Victoria, in the south east of South Australia and Adelaide to Mount Gambier and in Tasmania.
Eucalyptus oleosa grows locally common in open forests with grasses and sour grass plants in low-lying and permanently active damp locations.
System
The first description of Eucalyptus ovata was made in 1806 by Jacques Julien de Houtou Labillardiere in Novae Plantarum Specimen Hollandiae, Volume 2, p 13 The type material has the inscription " In Terra Van Leuwin " on. The specific epithet is derived from the Latin word ovata Ovus for egg and refers to the shape of the leaves. Eucalyptus ovata Labill synonyms for. are: Eucalyptus gunnii var ovata ( Labill. ) H.Deane & Maiden, Eucalyptus acervula Hook.f., Eucalyptus stuartiana F.Muell. ex Miq. , Eucalyptus longifolia var stuartiana Benth., Eucalyptus mulleri Naudin, Eucalyptus paludosa F.Muell. ex RTBaker, Eucalyptus gunnii var acervula H.Deane & Maiden, Eucalyptus gunnii var elata Hook.f., Eucalyptus ovata var grandiflora Maiden.
Eucalyptus ovata forms natural hybrids with Eucalyptus barberi, Eucalyptus camaldulensis, Eucalyptus globulus and Eucalyptus viminalis.