Biology:Eucalyptus brockwayi
| Dundas mahogany | |
|---|---|
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| Eucalyptus brockwayi growing near Norseman | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Myrtales |
| Family: | Myrtaceae |
| Genus: | Eucalyptus |
| Species: | E. brockwayi
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| Binomial name | |
| Eucalyptus brockwayi C.A.Gardner[2]
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Eucalyptus brockwayi, commonly known as Dundas mahogany,[3] is a tree that is endemic to Western Australia. It has smooth, shiny bark on the trunk and branches, glossy green, linear to narrow lance-shaped adult leaves, flower buds arranged in groups of between eleven and fifteen, white flowers and spherical fruit with a narrow neck.
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Description
Eucalyptus brockwayi is a tree that typically grows to a height of 15 to 25 metres (49 to 82 ft) but does not form a lignotuber. It has smooth, shiny light grey, pinkish and creamy white bark on its trunk and branches. Young plants and coppice regrowth have dull green, sessile, elliptic leaves, 20–70 mm (0.79–2.8 in) long and 5–27 mm (0.2–1 in) wide. The adult leaves are very glossy green, linear to narrow lance-shaped, 70–150 mm (2.8–5.9 in) long and 8–18 mm (0.3–0.7 in) wide on a petiole 12–20 mm (0.47–0.79 in) long. The flower buds are arranged in groups of eleven, thirteen or fifteen on a flattened peduncle 5–13 mm (0.2–0.5 in) long, the individual buds on a pedicel 1–2 mm (0.04–0.08 in) long. The mature buds are cylindrical to oval with a swollen base, 6–8 mm (0.24–0.31 in) long and 3–4 mm (0.1–0.2 in) wide with a blunt conical to rounded operculum. Flowering occurs from March to June and the flowers are white. The fruit is a woody, spherical capsule, 4–6 mm (0.16–0.24 in) long and 4–7 mm (0.16–0.28 in) wide with an urn-shaped base, the three valves enclosed within the rim.[3][4][5][6]
Taxonomy and naming
Eucalyptus brockwayi was first formally described in 1943 by Charles Gardner and the description was published in Journal of the Royal Society of Western Australia.[7][8] The specific epithet (brockwayi) honours George Ernest Emerson Brockway, for his contribution to "knowledge of the genus Eucalyptus" in eastern parts of Western Australia.[8][9]
Distribution and habitat
Dundas mahogany is found in small stands on low, rocky hills and slopes in woodland and forest in the Norseman and Dundas areas.[3][6]
Conservation
Eucalyptus brockwayi is classified as "Priority Three" by the Government of Western Australia Department of Parks and Wildlife[4] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[10]
See also
References
- ↑ Fensham, R.; Laffineur, B.; Collingwood, T. (2019). "Eucalyptus brockwayi". IUCN Red List of Threatened Species 2019: e.T133374918A133374920. doi:10.2305/IUCN.UK.2019-3.RLTS.T133374918A133374920.en. https://www.iucnredlist.org/species/133374918/133374920. Retrieved 20 September 2021.
- ↑ "Eucalyptus brockwayi". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/73630.
- ↑ 3.0 3.1 3.2 "Eucalyptus brockwayi Dundas mahogany". Euclid: Centre for Australian National Biodiversity Research. https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_brockwayi.htm?zoom_highlight=Eucalyptus+brockwayi.
- ↑ 4.0 4.1 "Eucalyptus brockwayi C.A.Gardner". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/5569.
- ↑ Douglas J. Boland; Maurice William McDonald (2006). Forest Trees of Australia. CSIRO Publishing. ISBN 9780643069695.
- ↑ 6.0 6.1 Chippendale, George M.. "Eucalyptus brockwayi". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. https://profiles.ala.org.au/opus/foa/profile/Eucalyptus%20brockwayi.
- ↑ "Eucalyptus brockwayi". APNI. https://id.biodiversity.org.au/instance/apni/455034.
- ↑ 8.0 8.1 Gardner, Charles A. (1943). "Contributiones Florae Australiae Occidentalis". Journal of the Royal Society of Western Australia 27: 185–186. https://www.biodiversitylibrary.org/item/218104#page/197/mode/1up. Retrieved 26 March 2019.
- ↑ "Brockway, George Ernest Emerson - biography". Collectors & Illustrators. Australian National Herbarium. http://www.anbg.gov.au/biography/brockway-george-ernest.html.
- ↑ "Conservation codes for Western Australian Flora and Fauna". Government of Western Australia Department of Parks and Wildlife. https://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/Conservation%20code%20definitions.pdf.
Wikidata ☰ Q13634375 entry
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