Eucalyptus koolpinensis
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Eucalyptus koolpinensis |
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| Brooker & Dunlop |
Eucalyptus koolpinensis is a species ofthe myrtle family (Myrtaceae). It occurs only in one location in the north of the Australian Northern Territory in the southern part of the Kakadu National Park and is called "Koolpin Box" there.
description
Appearance and leaf
Eucalyptus koolpinenesis grows as a tree . The bark remains on the entire tree, is gray to gray-brown with whitish spots and fibrous pieces. There are oil glands both in the marrow and in the bark.
In Eucalyptus koolpinensis is Heterophyllie ago. The leaves are always divided into a petiole and a leaf blade. On middle-aged specimens, the leaf blade is lanceolate to ovate, straight, with entire margins, and dull green. The leaf blade on adult specimens is egg-shaped to circular, relatively thick, straight, narrows towards the base of the blade and has a rounded or edged upper end, floured and frosted on the top and bottom of the same color, matt green or blue-green. The petiole is narrowly flattened in cross section or channel-shaped. The raised lateral nerves extend from the median nerve at an obtuse angle. The cotyledons ( cotyledons ) are reversed kidney-shaped.
Inflorescence and flower
At the end of an inflorescence stem that is round in cross-section, there are approximately seven-flowered partial inflorescences in compound total inflorescences . The flower buds are cylindrical or conical and floured or frosted blue-green. The sepals form a calyptra that falls off early. The smooth calyptra is conical or beak-shaped, twice as long as the smooth flower cup (hypanthium) and just as wide as this. The flowers are white or creamy white.
fruit
The fruit is urn-shaped or bell-shaped. The disc is indented or flat, the fruit compartments are level with the rim or protrude.
Occurrence and endangerment
Eucalyptus koolpinensis occurs only in one location in the Koolpin Gorge in the southern part of the Kakadu National Park , which is in the north of the Northern Territory .
Eucalyptus koolpinensis was rated in 1997 on the IUCN's Red List of Endangered Species as “rare”; the IUCN has no information on the current endangerment.
Taxonomy
The first description of Eucalyptus koolpinensis was made in 1978 by Ian Brooker and Clyde Robert Dunlop in Australian Forest Research , Volume 8, page 214, Fig. 8-10. The type material is labeled “ Koolpin Creek Gorge road, between South Alligator River and Gorge, 29 Sept. 1976, MIH Brooker 5348 (holo, FRI (Fig. 10); iso, DNA, NSW, K) ”.
Individual evidence
- ↑ a b Specimen search results: Eucalyptus koolpinensis at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved February 26, 2013
- ↑ a b c APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved February 26, 2013
- ↑ a b c d Eucalyptus koolpinensis at EucaLink - A Web Guide to the Eucalypts . Retrieved February 26, 2013.
- ↑ Eucalyptus koolpinensis in: Kerry S. Walter & Harriet J. Gillett (editors): 1997 IUCN Red List of Threatened Plants . The IUCN Species Survival Commission. at Google Books . Retrieved February 26, 2013
- ↑ Eucalyptus koolpinensis at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed February 26, 2013.
- ↑ Rafaël Govaerts (Ed.): Eucalyptus koolpinensis. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved February 26, 2013.
