''Calothamnus microcarpus'' is a plant in the myrtle

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Myrtaceae Myrtaceae, the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All spe ...

and is

endemic Endemism is the state of a species being found 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 found els ...

to the south-west of

Western Australia Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to ...

. It is an erect, either compact or spreading shrub with flat leaves and clusters of red flowers in spring. (In 2014

Craven Craven may refer to: * Craven in the Domesday Book, an area of Yorkshire, England, larger area than the district ** Craven District, a local government district of North Yorkshire formed in 1974 Places * Craven, New South Wales, Australia, see ...

, Edwards and Cowley proposed that the species be renamed ''Melaleuca microcarpa''.)

Description

''Calothamnus microcarpus'' is an erect shrub with an otherwise variable habit, growing to a height of . Its leaves are flat and have two grooves along both the upper and lower surfaces. The flowers are bright red and arranged in small groups and 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 filam ...

s are arranged in 4 claw-like bundles. Flowering occurs in spring and is followed by fruits which are small, woody capsules about in diameter.

Taxonomy and naming

''Calothamnus microcarpus'' was first formally described by

Victorian Victorian or Victorians may refer to: 19th century * Victorian era, British history during Queen Victoria's 19th-century reign ** Victorian architecture ** Victorian house ** Victorian decorative arts ** Victorian fashion ** Victorian literature ...

Government Botanist

Ferdinand von Mueller Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 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 Vic ...

in 1862 in Volume 3, Part 21 of '' Fragmenta Phytographiae Australiae''. The

specific 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 ...

''microcarpus'' is derived from the

ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ...

words ''mikros'' (μικρός) meaning "small" and ''karpos'' (καρπός) meaning "fruit".Backer, C.A. (1936). ''Verklarend woordenboek der wetenschappelijke namen van de in Nederland en Nederlandsch-Indië in het wild groeiende en in tuinen en parken gekweekte varens en hoogere planten'' (Edition Nicoline van der Sijs).

Distribution and habitat

''Calothamnus microcarpus'' occurs in the

Esperance Plains Esperance Plains, also known as Eyre Botanical District, is a biogeographic region in southern Western Australia on the south coast between the Avon Wheatbelt and Hampton bioregions, and bordered to the north by the Mallee region. It is ...

and

Jarrah Forest Jarrah forest is tall open forest in which the dominant overstory tree is '' Eucalyptus marginata'' (jarrah). The ecosystem occurs only in the Southwest Botanical Province of Western Australia Western Australia (commonly abbreviated as WA) is ...

biogeographic regions where it grows in clay and sandy soils.

Conservation

''Calothamnus microcarpus'' is classified as "Priority Four" by the Western Australian government Department of Parks and Wildlife meaning that is rare or near threatened.

References

{{Taxonbar, from=Q15397177 microcarpus Myrtales of Australia Plants described in 1862 Endemic flora of Western Australia Taxa named by Ferdinand von Mueller