Eucalyptus guilfoylei

Eucalyptus guilfoylei, commonly known as yellow tingle or dingul dingul,[2] is a species of tall tree that is endemic to Western Australia. The trunk is straight with fibrous, greyish brown bark and it has lance-shaped leaves, flower buds in groups of seven, white flowers and barrel-shaped fruit.

flower buds
fruit
Valley of the Giants, Walpole-Nornalup National Park, containing tingle forest

Yellow tingle
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. guilfoylei
Binomial name
Eucalyptus guilfoylei
Maiden[1]

Description

Eucalyptus guilfoylei is a tree that typically grows to a height of 5 to 40 metres (16 to 131 ft). It has rough, short-fibred, crumbly, greyish brown bark and a trunk diameter of about 1 m (3 ft 3 in). Young plants and coppice regrowth have stems that are more or less square in cross-section and leaves that are egg-shaped, dark green above and paler on the lower surface, 80–130 mm (3.1–5.1 in) long and 55–70 mm (2.2–2.8 in) wide. Adult leaves are lance-shaped, dull green on the upper surface, paler below, 80–150 mm (3.1–5.9 in) long and 15–40 mm (0.59–1.57 in) wide on a petiole 15–30 mm (0.59–1.18 in) long. The flower buds are arranged in groups of seven on branching peduncles in leaf axils and on the ends of branchlets. The peduncles are 8–23 mm (0.31–0.91 in) long and the pedicels 1–4 mm (0.039–0.157 in) long. Mature buds are cylindrical or narrow egg-shaped, with the narrower end towards the base, 7–8 mm (0.28–0.31 in) long and 4–6 mm (0.16–0.24 in) wide. Flowering occurs between November and January and the flowers are white. The fruit are woody, globular, pear-shaped or barrel-shaped capsules 7–10 mm (0.28–0.39 in) long and 8–10 mm (0.31–0.39 in) wide with the valves near rim level. They contain flattened saucer shaped red-brown seeds.[3][4][5][6][7]

Although closely related to the other tingle trees, E. brevistylis and E. jacksonii, the trunk of E. guilfoylei is not buttressed, the bark is persistent, the wood is yellow and the leaves are paler on the lower surface. All the tingles are able to reach 400 years of age.[4]

Taxonomy and naming

The species was first described by the botanist Joseph Maiden in 1911 in his article Notes on Western Australian eucalypts, including description of new species in the Journal of the Natural History and Science Society of Western Australia. The type material was collected by Andrew Murphy in 1905 near Denmark.[8] The name honours William Guilfoyle, who once was the Director of the Royal Botanic Gardens in Melbourne.[9]

Distribution

Found on slopes and ridges in coastal areas of the Great Southern region where it grows in gravelly loam soils.[3] Found between the Deep and Frankland Rivers west of Albany, on slopes and ridges of hilly country. It occurs as scattered trees in forested areas associated with other large trees, such as Eucalyptus diversicolor, Corymbia calophylla or Eucalyptus jacksonii. The yellow tingle grows best in deep red loamy soils originating from basalt and dolerite but will grow in light loams from granite and schists.[7]

The species was reported as occurring with several plant species, often as the understorey of the E. jacksonii, which is distinguished by its larger size, more fibrous bark and the name red tingle tingle (a variation of a common name, as 'yellow tingle tingle', was also once in popular use for this species). Other associated trees include river banksia and Agonis flexuosa. The tree resembles jarrah but for its less rough bark and light brown wood.[10]

Uses

The heartwood is hard and straight-grained with an oak-like yellow colour. The wood has a green density of about 1185 kg/m3 and an air-dried density about 990 kg/m3.[7]

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See also

References
  1. "Eucalyptus guilfoylei". Australian Plant Census. Retrieved 23 July 2019.
  2. "Eucalyptus guilfoylei Dingul Dingul". Nindethana. Retrieved 20 January 2017.
  3. "Eucalyptus guilfoylei". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. Douglas J. Boland; Maurice William McDonald (2006). Forest Trees of Australia. CSIRO publishing. p. 276. ISBN 9780643069695.
  5. "Eucalyptus guilfoylei". Euclid: Centre for Australian National Biodiversity Research. Retrieved 2 June 2020.
  6. Chippendale, George M. "Eucalyptus guilfoylei". Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 23 July 2019.
  7. "Forest Products Commission - developing the sustainable use of the States plantation and native forest resources in Western Australia". www.fpc.wa.gov.au. Retrieved 1 October 2015.
  8. "Eucalyptus guilfoylei". APNI. Retrieved 23 July 2019.
  9. Maiden, Joseph Henry (1911). "Notes on Western Australian eucalypts, including description of new species". Journal of the Natural History & Science Society of Western Australia. 3 (2): 180–184. Retrieved 23 July 2019.
  10. Lane-Poole, C. E. (1922). A primer of forestry, with illustrations of the principal forest trees of Western Australia. Perth: F.W. Simpson, government printer. p. 58. doi:10.5962/bhl.title.61019.
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