Atalaya multiflora
Encyclopedia
Atalaya multiflora known as the Broad Leaved Whitewood is a rare and endangered rainforest
tree of the soapberry
family native to eastern Australia
.
The habitat is in the drier rainforest areas, often on rocky slopes of basalt
. However, it also is seen on sub-tropical lowland rainforest growing on alluvial soils. It was described by prolific botanist George Bentham
in his Flora Australiensis
in 1863, and was given the specific name multiflora because of the numerous flowers.
s and showing obvious leaf scars.
s form at the end of branchlets with abundant tiny creamy flowers. The flowers have five petals and sepal
s, and with eight stamen
s. Near the flowers are many small bract
s.
The paired winged fruit (a fawn coloured samarae
) forms from March to May. Each with a wing around 3 cm long opposite the round seed at the other end. Seeds last only a very short while on the ground, as they are soon attacked by insects. Fresh seeds should be soaked to kill insect larvae, then planted as soon as possible.
Rainforest
Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm...
tree of the soapberry
Sapindaceae
Sapindaceae, also known as the soapberry family, is a family of flowering plants in the order Sapindales. There are about 140-150 genera with 1400-2000 species, including maple, horse chestnut and lychee....
family native to eastern Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
.
The habitat is in the drier rainforest areas, often on rocky slopes of basalt
Basalt
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...
. However, it also is seen on sub-tropical lowland rainforest growing on alluvial soils. It was described by prolific botanist George Bentham
George Bentham
George Bentham CMG FRS was an English botanist, characterized by Duane Isely as "the premier systematic botanist of the nineteenth century".- Formative years :...
in his Flora Australiensis
Flora Australiensis
Flora Australiensis: a description of the plants of the Australian Territory, more commonly referred to as Flora Australiensis, and also known by its standard abbreviation Fl. Austral., is a seven-volume flora of Australia published between 1863 and 1878 by George Bentham, with the assistance of...
in 1863, and was given the specific name multiflora because of the numerous flowers.
Description
A small tree up to 25 metres (80 ft) tall with a stem diameter of 40 cm (16 in). The base of the tree isn't quite cylindrical, but somewhat flanged and crooked. The bark is relatively smooth, coloured greyish brown. Small branches are thick, marked with lenticelLenticel
A lenticel is an airy aggregation of cells within the structural surfaces of the stems, roots, and other parts of vascular plants. It functions as a pore, providing a medium for the direct exchange of gasses between the internal tissues and atmosphere, thereby bypassing the periderm, which would...
s and showing obvious leaf scars.
Leaves
The compound leaves are arranged alternately on the stem and pinnate in shape, 7 to 24 cm (3–10 in) long with a stem 15 to 40 mm long. The leaflets are 4 to 12 cm (1.6–5 in) long, 1.5 to 4 cm (0.6-1.6 in) wide with a stem 2 to 5 mm long. There are usually two to three leaflets per compound leaf, oblong or ovate in shape, without leaf serrations. Relatively thick and notched at the tip of the leaf. There are around 12 pairs of straight lateral leaf veins per leaflet, more easily seen on the underside.Flowers, fruit & regeneration
From December to January, paniclePanicle
A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....
s form at the end of branchlets with abundant tiny creamy flowers. The flowers have five petals and sepal
Sepal
A sepal is a part of the flower of angiosperms . Collectively the sepals form the calyx, which is the outermost whorl of parts that form a flower. Usually green, sepals have the typical function of protecting the petals when the flower is in bud...
s, and with eight stamen
Stamen
The stamen is the pollen producing reproductive organ of a flower...
s. Near the flowers are many small bract
Bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis, or cone scale. Bracts are often different from foliage leaves. They may be smaller, larger, or of a different color, shape, or texture...
s.
The paired winged fruit (a fawn coloured samarae
Samara (fruit)
A samara is a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a simple dry fruit and indehiscent . It is a winged achene...
) forms from March to May. Each with a wing around 3 cm long opposite the round seed at the other end. Seeds last only a very short while on the ground, as they are soon attacked by insects. Fresh seeds should be soaked to kill insect larvae, then planted as soon as possible.