Eucalyptus platycorys
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Eucalyptus platycorys |
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| Maiden & Blakely |
Eucalyptus platycorys is a species ofthe myrtle family (Myrtaceae). It occurs in the south of Western Australia and is called "Boorabbin Mallee" or "Booragin Mallee" there.
description
Appearance and leaf
Eucalyptus platycorys grows in the form of the mallee - eucalyptus , this is a growth form that is more shrub -shaped than tree-shaped , there are usually several trunks that form a lignotuber ; or occasionally as a tree that reaches heights of 2 to 12 meters. The gray-brown bark is smooth on the entire tree or rough and fibrous in pieces on the lower part of the trunk and smooth on the upper parts of the tree. There are oil glands in the bark.
In Eucalyptus platycorys , heterophylly is present. The leaves are always divided into a petiole and a leaf blade. The petiole is narrowly flattened or channel-shaped. On middle-aged specimens, the leaf blade is lanceolate to ovate, straight, with entire margins and dull gray-green. The leaf blades of the same color on the upper and lower sides of the adult specimens are narrow-lanceolate, straight, relatively thick, taper towards the base of the blades and have a pointed upper end. The raised or barely visible side nerves go off the median nerve at an acute angle. The cotyledons ( cotyledons ) are reversed kidney-shaped.
Inflorescence and flower
On the side of an inflorescence shaft with a width of up to 3 mm in cross section, narrowly flattened or angular, there are only about three flowers together in a simple inflorescence . The flower buds are cylindrical, club-shaped or conical and not floured or frosted blue-green. The sepals form a calyptra that falls off early. The smooth calyptra is hemispherical or conical, as long as the smooth or striped flower cup (hypanthium) and wider than this. The flowers are creamy white. The flowering period in Western Australia is July to October.
fruit
The fruit is cylindrical or bell-shaped. The disc is indented, the fruit compartments are included.
Occurrence
The natural range of Eucalyptus platycorys is in the south of Western Australia , between Kalgoorlie-Boulder and Esperance . Eucalyptus platycorys occurs in the independent counties of Bruce Rock , Coolgardie , Dundas , Esperance , Kalgoorlie-Boulder , Kondinin , Lake Grace , Menzies , Merredin , Narembeen and Yilgarn in the Goldfields-Esperance and Wheatbelt regions .
Eucalyptus platycorys grows white, yellow or red sandy soils or sandy loam soils , sometimes with gravel . Eucalyptus platycorys can be found on hilly plains, sand dunes or on the banks of salt lakes .
Taxonomy
The first description of Eucalyptus platycorys was made in 1929 by Joseph Maiden in A Critical revision of the genus Eucalyptus , Volume 8 (1) 42. The type material has the inscription " Known only from Boorabbin west of Coolgardie. Western Australia (Dr. A. Morrison, 16th January, 1906 “. Synonyms for Eucalyptus platycorys Maiden & Blakely are Eucalyptus helmsii Maiden & Blakely and Eucalyptus scyphocalyx subsp. Triadica L.ASJohnson & KDHill .
Individual evidence
- ↑ a b Specimen search results: Eucalyptus platycorys at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved March 1, 2013
- ↑ a b c APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved March 1, 2013
- ↑ a b c d e f g Eucalyptus platycorys at EucaLink - A Web Guide to the Eucalypts . Retrieved March 1, 2013.
- ↑ a b c d e Eucalyptus platycorys in the Western Australian Flora . Retrieved March 1, 2013.
- ↑ Eucalyptus platycorys at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 1, 2013.
- ↑ Rafaël Govaerts (Ed.): Eucalyptus platycorys. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 1, 2013.
