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''Eucalyptus eudesmioides'', commonly known as mallalie, desert gum or mallabie is a species of mallee that is 
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to Western Australia. It is a rounded, bushy mallee with smooth bark, egg-shaped to heart-shaped leaves arranged in opposite pairs, club-shaped flower buds arranged in groups of three, whitish flowers and cylindrical to barrel-shaped fruit.
Description
''Eucalyptus eudesmioides'' is a mallee, sometimes a tree, that typically grows to high, occasionally up to but usually less than , and forms alignotuber
A lignotuber is a woody swelling of the root crown possessed by some plants as a protection against destruction of the plant stem, such as by fire. Other woody plants may develop basal burls as a similar survival strategy, often as a respons ...
. It usually has smooth white to grey or brownish bark, sometimes with a rough, fibrous grey to brown bark near the base of the trunk. Young plants and coppice
Coppicing is the traditional method in woodland management of cutting down a tree to a tree stump, stump, which in many species encourages new Shoot (botany), shoots to grow from the stump or roots, thus ultimately regrowing the tree. A forest ...
regrowth have sessile
Sessility, or sessile, may refer to:
* Sessility (motility), organisms which are not able to move about
* Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant
* Sessility (medicine), tumors and polyps that ...
, egg-shaped to heart-shaped leaves arranged in opposite pairs and long, wide. Adult leaves are also arranged in opposite pairs and are lance-shaped to curved, long and wide on a petiole
Petiole may refer to:
*Petiole (botany), the stalk of a leaf, attaching the blade to the stem
*Petiole (insect anatomy)
In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and ...
long. The flower buds are arranged in leaf axil
A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, fl ...
s in groups of three on a peduncle long, the individual buds on a pedicel
Pedicle or pedicel may refer to:
Human anatomy
*Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures
...
long. Mature buds are club-shaped, long and wide with a rounded to flattened operculum, the stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10
Morphology and terminology
A stamen typically consists of a stalk called the filament ...
s in bundles. Flowering occurs from February to May and the flowers are white. The fruit is a woody, cylindrical to barrel-shaped capsule long and wide with the valves at or near the level of the rim.
Taxonomy and naming
''Eucalyptus eudesmioides'' was first formally described in 1860 by the botanistFerdinand von Mueller
Baron Sir Ferdinand Jacob Heinrich von Mueller, (; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Victoria, Australia ...
, initially as ''Eucalyptus eudesmoides'' in his book ''Fragmenta phytographiae Australiae
''Fragmenta phytographiae Australiae'' is a series of papers written by the Victorian Government botanist Ferdinand von Mueller in which he published many of his approximately 2000 descriptions of new taxa of Australian plants. Including the p ...
''. The original name is an orthographical variant
In biology, within the science of Nomenclature, scientific nomenclature, i.e. the naming of organisms, an orthographical variant (abbreviated orth. var.) in botany or an orthographic error in zoology, is a spelling mistake, typing mistake or writi ...
of ''E. eudesmioides''.
The specific epithet
In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...
(''eudesmioides'') is a reference to the ''Eucalyptus'' subgenus
In biology, a subgenus ( subgenera) is a taxonomic rank directly below genus.
In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the ge ...
''Eudesmia''. The ending ''-oides'' is a Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
suffix
In linguistics, a suffix is an affix which is placed after the stem of a word. Common examples are case endings, which indicate the grammatical case of nouns and adjectives, and verb endings, which form the conjugation of verbs. Suffixes can ca ...
meaning "likeness".
Mallalie is the Noongar
The Noongar (, also spelt Noongah, Nyungar , Nyoongar, Nyoongah, Nyungah, Nyugah, and Yunga ) are Aboriginal Australian people who live in the South West, Western Australia, south-west corner of Western Australia, from Geraldton, Western Aus ...
name for the species.
Distribution and habitat
Mallalie occurs coastally and subcoastally from north ofPerth
Perth () is the list of Australian capital cities, capital city of Western Australia. It is the list of cities in Australia by population, fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth . The ...
northwards to the Murchison River. The range extends from Carnarvon in the Gascoyne
The Gascoyne region is one of the nine regions of Western Australia. It is located in the northwest of Western Australia, and consists of the local government areas of Carnarvon, Exmouth, Shark Bay and Upper Gascoyne. The Gascoyne has about of ...
south to Wongan Hills
Wongan Hills is a range of low flat-topped hills in the Avon Wheatbelt bioregion of Western Australia. It is located at , in the Shire of Wongan–Ballidu.
History
The range was first recorded in 1836 by Surveyor General of Western Australia Jo ...
in the Wheatbelt region of Western Australia. It grows in sandy soil on flat or low sloping areas in mallee woodland. It is one of the eucalypts identified in the Eurardy Reserve
Eurardy Reserve is a nature reserve in Western Australia. It is north of Geraldton, south of Carnarvon and north of Perth. It lies on the northern edge of the South West Botanical Province, adjoining Kalbarri National Park, and is owned a ...
, a reserve that was established as a bush heritage property in 2011.
Two subspecies, not yet formally described, are recognised by the Australian Plant Census
The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information Sys ...
:
* ''Eucalyptus eudesmioides'' subsp. ''Pallida'';
* ''Eucalyptus eudesmioides'' subsp. ''Selachiana''.
Conservation status
This eucalypt is classified as "not threatened" by the Western Australian GovernmentDepartment of Parks and Wildlife
The Department of Parks and Wildlife (DPaW) was the department of the Government of Western Australia responsible for managing lands described in the ''Conservation and Land Management Act 1984'' and implementing the state's conservation and en ...
.
See also
* List of ''Eucalyptus'' speciesReferences
{{Taxonbar, from=Q15397212 Trees of Australia Eucalypts of Western Australia Myrtales of Australia eudesmoides Mallees (habit) Plants described in 1860 Taxa named by Ferdinand von Mueller