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''Eucalyptus acies'', commonly known as the Woolbernup mallee is a straggly shrub that is endemic to a restricted part of the south-west of Western Australia. It has smooth bark, lance-shaped leaves, club-shaped flower buds with prominent ridges on their sides, creamy white flowers and hemispherical to bell-shaped fruit.
Description
''Eucalyptus acies'' is a straggly mallee shrub that typically grows to a height of and has smooth grey bark. It usually has several main stems and its young branches are more or less square in cross section. Leaves on young plants are arranged in opposite pairs, elliptic, long and wide with the lower surface a slighter paler green. The adult leaves are thick and coarse, in length with a lanceolate blade. Starting as a blue dullish green the leaves mature to a glossy green. Adult leaves are a similar green on both sides, lance-shaped and long and wide on a flattened petiole long. The flowers are borne in groups of up to seven in leafaxil
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...
s on a flattened peduncle Peduncle may refer to:
*Peduncle (botany), a stalk supporting an inflorescence, which is the part of the shoot of seed plants where flowers are formed
*Peduncle (anatomy), a stem, through which a mass of tissue is attached to a body
**Peduncle (art ...
long. The unopened buds are club-shaped, long and wide including the pedicel. The flower cup has prominent ridges and is long and usually much longer than the operculum. The stamen
The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10
Morphology and terminology
A stamen typically consists of a stalk called the filame ...
s are creamy white and all are fertile. Flowering occurs from September to November and the fruit is hemispherical to bell-shaped, long and wide.
Taxonomy and naming
''Eucalyptus acies'' was first formally described in 1972 by Ian Brooker and the description was published in the journal Nuytsia from a specimen he collected on a hill known as Woolbernup in the Fitzgerald River National Park. Thespecific epithet
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...
(''acies'') is a Latin word meaning "the point or edge of a weapon", referring to the angled branchlets of this species.
Distribution and habitat
The Woolbernup mallee grows in low shrubland and heath on quartzite hills and granite boulders in near-coastal areas between Bremer Bay and Hopetoun.Conservation status
This mallee 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=Q15396605 acies Eucalypts of Western Australia Myrtales of Australia Plants described in 1972 Taxa named by Ian Brooker