Eucalyptus quadrangulata
{{Short description|Species of eucalyptus}}
{{Use dmy dates|date=July 2019}}
{{speciesbox
|name = White-topped box
|image = Eucalyptus quadrangulata.jpg
|image_caption = Eucalyptus quadrangulata
|genus = Eucalyptus
|species = quadrangulata
|status_system =
|status =
|authority = Henry Deane & Maiden{{cite web|title=Eucalyptus quadrangulata|url= https://biodiversity.org.au/nsl/services/apc-format/display/107304|publisher=Australian Plant Census|access-date=7 December 2019}} }}
File:Eucalyptus quadrangulata leaf.jpg]]
Eucalyptus quadrangulata, commonly known as the white-topped box or coast white box,{{cite web |last1=Hill |first1=Ken |title=Eucalyptus quadrangulata |url=http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Eucalyptus~quadrangulata |publisher=Royal Botanic Garden Sydney |access-date=8 December 2019}} is a species of small to medium-sized tree that is endemic to eastern Australia. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and conical fruit.
Description
Eucalyptus quadrangulata is a tree that typically grows to a height of {{cvt|45-50|m}} and forms a lignotuber. It has rough, greyish brown, fibrous or flaky bark on the trunk and branches. Young plants and coppice regrowth have stems that are square in cross-section and leaves that are arranged in opposite pairs and sessile with their bases surrounding the stem. The juvenile leaves are lance-shaped, paler on the lower surface, {{cvt|70-150|mm}} long and {{cvt|13-35|mm}} wide. Adult leaves are the same shade of glossy green on both sides, lance-shaped to curved, {{cvt|105-190|mm}} long and {{cvt|10-22|mm}} wide, tapering to a petiole {{cvt|13-25|mm}} long. The flower buds are arranged in leaf axils on an unbranched peduncle {{cvt|9-12|mm}} long, the individual buds usually sessile. Mature buds are oval to spindle-shaped, {{cvt|4-7|mm}} long and about {{cvt|3|mm}} wide with a conical operculum. Flowering occurs from February to March and the flowers are white. The fruit is a woody, conical capsule {{cvt|4-5|mm}} long and {{cvt|4-6|mm}} wide with the valves below the level of the rim.{{cite web |title=Eucalyptus quadrangulata |url=https://apps.lucidcentral.org/euclid/text/entities/eucalyptus_quadrangulata.htm |publisher=Euclid: Centre for Australian National Biodiversity Research |access-date=30 May 2020}}{{cite web |last1=Chippendale |first1=George M. |title=Eucalyptus quadrangulata |url=https://profiles.ala.org.au/opus/foa/profile/Eucalyptus%20quadrangulata |publisher=Australian Biological Resources Study, Department of the Environment and Energy, Canberra |access-date=8 December 2019}}{{cite book |last1=Brooker |first1=Ian |last2=Kleinig |first2=David |title=Field guide to eucalypts |date=1990 |publisher=Inkata Press |location=Melbourne |isbn=0909605629 |page=206 |edition=revised}}
Taxonomy
Eucalyptus quadrangulata was first formally described in 1899 by Henry Deane and Joseph Maiden in Proceedings of the Linnean Society of New South Wales.{{cite web|title=Eucalyptus quadrangulata|url= https://id.biodiversity.org.au/instance/apni/455923|publisher=APNI|access-date=8 December 2019}}{{cite journal |last1=Deane |first1=Henry |last2=Maiden |first2=Joseph |title=Observations on the eucalypts of New South Wales, Part V |journal=Proceedings of the Linnean Society of New South Wales |date=1899 |volume=24 |issue=3 |pages=451–454 |url=https://www.biodiversitylibrary.org/item/21735#page/549/mode/1up |access-date=8 December 2019}}
Distribution and habitat
White-topped box grows in the slopes and edges on the eastern side of the Northern and Central Tablelands in New South Wales, between Dorrigo and Scone in the north to Bundanoon and Milton in the south. There is also a disjunct population near Cunninghams Gap in south-eastern Queensland.Native Trees of the Central Illawarra Fuller & Mills {{ISBN|0-9594711-2-X}} page 121
References
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Category:Myrtales of Australia