Eucalyptus nicholii
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Eucalyptus nicholii |
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| Maiden & Blakely |
Eucalyptus nicholii is a species ofthe myrtle family (Myrtaceae). It occurs in the northeast of New South Wales and is called there "Small-leaved Peppermint", "Narrow-leaved Peppermint", "Narrow-leaved black Peppermint", "Willow-leaved Peppermint" or "Willow Peppermint".
description
Appearance and leaf
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Eucalyptus nicholii grows as a tree that can reach heights of up to 18 meters. The bark remains on the trunk and the larger branches, on the smaller branches or on the entire tree, is gray to gray-brown and fibrous ("peppermint"). At the top of the tree, it is smooth, gray, and peels in short ribbons. The small twigs have a green bark. There are oil glands in the bark, but not in the pith of the young branches.
In Eucalyptus nicholii , heterophyllia is present. On young specimens, the many leaves are linear to narrow-lanceolate and matt gray-green. In medium-old specimens, the many sitting, dull gray-green leaves with a length of about 5 cm and a width of about 0.5 cm are linear to narrow-lanceolate, straight and with entire margins. On adult specimens, the leaves are divided into a petiole and a leaf blade. The petiole is 7 to 12 mm long. The leaf blade, which has the same color on the upper and lower side, is dull gray-green, is 6 to 12 cm long and 0.5 to 1.0 cm wide and is narrow-lanceolate, relatively thin, curved sickle-shaped, tapers towards the base of the blade and possesses a pointed or edged upper end. The side nerves, which are barely recognizable, extend from the median nerve at medium intervals at an acute angle. The cotyledons ( cotyledons ) are upside-kidney-shaped.
Inflorescence and flower
On the side of an inflorescence stem with a length of 5 to 8 mm in cross section, there are about seven flowers together in a simple inflorescence . The 2 to 3 mm long flower stalks are stalk-round. The not blue-green floured or frosted flower buds are ovoid or spindle-shaped with a length of 3 to 5 mm and a diameter of 2 to 3 mm. The sepals form a calyptra that falls off early. The smooth calyptra is conical, once or twice as long as or shorter than the smooth flower cup (hypanthium) and as wide as this. The flowers are white or creamy white.
fruit
The stalked fruit is 2 to 5 mm long and 3 to 4 mm in diameter hemispherical or conical and triple. The disc is flat, the fruit fans stick out.
Occurrence and endangerment
The natural range of Eucalyptus nicholii is the northern table country of New South Wales , northeast of Tenterfield .
Eucalyptus nicholii grows limited and seldom in sparse hard-leaf or grassy forests on flat, relatively sterile soils over slate .
Eucalyptus nicholii is rated as “vulnerable” in the list of NSW threatened species and the ROTAP classification is 3V.
Taxonomy
The first description of Eucalyptus nicholii was made in 1929 by Joseph Maiden in A Critical evision of the genus Eucalyptus , Volume 8, 1, p 52. synonyms of Eucalyptus nicholii are Maiden & Blakely: Eucalyptus acaciiformis var. Linearis H.Daene & Maiden, Eucalyptus acaciaeformis var. linearis H.Deane & Maiden orth. var.
Individual evidence
- ↑ a b Specimen search results: Eucalyptus melanophloia at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved March 26, 2013
- ↑ a b c APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Last accessed on May 27, 2013
- ↑ a b c d e f g h i j k K. Hill: Eucalyptus nicholii Maiden & Blakely at New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Last accessed on May 27, 2013
- ↑ a b c d e f g h i j k l m n o p Eucalyptus nicholii at EucaLink - A Web Guide to the Eucalypts . Last accessed on May 27, 2013
- ↑ Data sheet at NSW threatened species. Last accessed on May 27, 2013
- ↑ Eucalyptus nicholii at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed March 26, 2013.
- ↑ Rafaël Govaerts (ed.): Eucalyptus nicholii. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved March 26, 2013.
