''Eucalyptus perriniana'', commonly known as spinning gum, is a tree or mallee which is native to

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

, the

Australian Capital Territory The Australian Capital Territory (commonly abbreviated as ACT), known as the Federal Capital Territory (FCT) until 1938, is a landlocked federal territory of Australia containing the national capital Canberra and some surrounding townships. ...

Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...

and

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

. Spinning gum is a sub-alpine species and grows in areas which are normally snow covered for several months in winter. However domestic cultivars can grow in almost any temperate climate.

Description

''Eucalyptus perriniana'' is a tree which sometimes grows to a height of or a mallee with smooth, copper-coloured bark which often turns white, grey or greenish as it ages before being shed in short ribbons each year. Its adult leaves are lance-shaped, greyish-green, long and wide. The juvenile leaves are arranged in opposite pairs, more or less round and lack a peduncle. The flowers are arranged in groups of three and the flower buds are long and in diameter. The flower caps are cone-shaped or

hemispherical A sphere () is a Geometry, geometrical object that is a solid geometry, three-dimensional analogue to a two-dimensional circle. A sphere is the Locus (mathematics), set of points that are all at the same distance from a given point in three ...

and the fruit is long and in diameter.

Taxonomy and naming

''Eucalyptus perriniana'' was first formally described in 1894 by

Leonard Rodway Leonard Rodway (5 October 1853 – 9 March 1936) was an English-born Australian dentist and botanist. Early life Rodway was born in Torquay Devon, England, the thirteenth child of Henry Barron Rodway, a dentist and inventor of the Rodway life ...

from an unpublished description by

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 Vict ...

. Rodway's description was published in '' Papers and Proceedings of the Royal Society of Tasmania''. Rodway did not give a reason for 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 ...

(''perriniana'') but George Samuel Perrin was Conservator of Forests in Tasmania in 1886 and 1887 before being appointed Conservator of Forest in Victoria in 1888.

Distribution and habitat

Spinning gum grows in woodland on high, cold plains in New South Wales, the Australian Capital Territory, Victoria and Tasmania.

Conservation

This eucalypt is listed as "rare" under the Tasmanian Government

Threatened Species Protection Act 1995 The ''Threatened Species Protection Act 1995'' (TSP Act), is an act of the Parliament of Tasmania that provides the statute relating to conservation of flora and fauna. Its long title is An Act to provide for the protection and management of th ...

. Only about one thousand individual plants are known from that state.

Uses

Catechin-7-O-glucoside Catechin-7-''O''-glucoside is a flavan-3-ol glycoside formed from catechin. Natural occurrences Catechin-7-''O''-glucoside can be isolated from the hemolymph of the European pine sawfly ('' Neodiprion sertifer''). It also occurs in relatively ...

and

catechin-5-O-glucoside Catechin 5-''O''-glucoside is a flavanol glucoside. It can be found in rhubarb and in the bark of ''Rhaphiolepis umbellata''.Flavanol glucosides from rhubarb and Rhaphiolepis umbellata. Gen-Ichiro Nonaka, Emiko Ezakia, Katsuya Hayashia and Itsuo ...

can be produced by biotransformation of (+)-

catechin Catechin is a flavan-3-ol, a type of secondary metabolite providing antioxidant roles in plants. It belongs to the subgroup of polyphenols called flavonoids. The name of the catechin chemical family derives from ''catechu'', which is the tannic ...

by cultured cells of ''E. perriniana''.Biotransformation of (+)-catechin by plant cultured cells of Eucalyptus perriniana. Otani S, Kondo Y, Asada Y, Furuya, Hamada, Nakajima, Ishihara and Hamada H, Plant Biotechnol., 2004, Vol. 21, No. 5, pages 407-409
abstract
)

Gallery

Image:Eucalyptus perriniana pendula.JPG, foliage and flowers Image:Eucalyptus perrinana 04.jpg, mature leaves and buds Image:Eucalyptus perrinana 02.jpg, mature fruit Image:Eucalyptus perriniana.jpg, juvenile foliage and trunk

References

External links

* {{Taxonbar, from=Q2070117 Myrtales of Australia perriniana Flora of New South Wales Flora of Tasmania Flora of Victoria (Australia) Mallees (habit) Plants described in 1894 Taxa named by Ferdinand von Mueller