Biology:Sterculia shillinglawii

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Short description: Species of plant in the family Malvaceae

Lacewood
Sterculia-shillinglawii-ALA-1.jpg
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Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malvales
Family: Malvaceae
Genus: Sterculia
Species:
S. shillinglawii
Binomial name
Sterculia shillinglawii

Sterculia shillinglawii, commonly known as tulip sterculia or lacewood, is a tree in the family Malvaceae which is native to Papuasia and northeastern Australia.

Description

Sterculia shillinglawii is a rainforest tree growing up to 30 m (98 ft) high with a trunk diameter of up to 1.2 m (3 ft 11 in) — the trunk is straight and may or may not have buttresses.[4][5] The simple leaves are a dull mid green above, lighter green or brown with a dense covering of fine hairs below.[4][5][6] They have entire margins (i.e. without teeth or lobes) and about 10 lateral veins either side of the midrib.[4][6] They measure about 15 cm (5.9 in) long by 8.5 cm (3.3 in) wide and are carried on a long petiole about 3 cm (1.2 in) long.[5][6]

The inflorescence is a panicle produced in the leaf axils or on the twigs below the leaves, and may be up to 20 cm (7.9 in) long.[5][6] The individual flowers are without petals but have five sepals, and are about 10 mm (0.39 in) wide and long.[4][5][6] They are white, cream, or pale yellow in colour.[4][5]

The fruit is a yellow, orange, or (most commonly) bright red follicle up to 9 cm (3.5 in) long by 2 cm (0.79 in) wide which is covered in a fine, dense indumentum.[4][5][6] At maturity it splits along the length to reveal the pale coloured interior containing up to eight dark green to black seeds measuring up to 16 mm (0.63 in) long and 10 mm (0.39 in) wide.[4][5][6]

Taxonomy

This species was first described in 1887 by the German born Australian botanist Ferdinand von Mueller, based on material collected by R. Parkinson in New Britain. His paper, titled "Two species of Sterculia, discovered by R. Parkinson, Esq., in New Britain" was initially published in The Australasian Journal of Pharmacy and later published again in the German language journal Botanisches Centralblatt.[2][7]

Etymology

Mueller named this species after Harry Shillinglaw, the editor of The Australasian Journal of Pharmacy. He notes in his paper "I have dedicated this evidently rare tree to Harry Shillinglaw, Esq., the zealous Editor of this periodical, and the accomplished Secretary of the Victorian Board of Pharmacy".[7]

Distribution and habitat

The tulip sterculia is native to Cape York Peninsula in Australia, New Guinea (including the Bismarck Archipelago), the most western part of the Solomon Islands , and North Maluku.[8] It grows in rainforest, monsoon forest and gallery forest, at altitudes from sea level to 300 m (980 ft).[5][6]

Uses

The tulip sterculia is harvested for timber in Papua New Guinea, and has been recommended as a street tree in New South Wales.[9] In the city of Cairns, Queensland, it has been planted in streets and parks.[10]

Gallery

  • Inflorescence

  • Foliage

  • Two clusters of immature fruit

  • Dehisced fruit, showing seeds within

References

  1. ↑ Botanic Gardens Conservation International (BGCI); IUCN SSC Global Tree Specialist Group. (2018). "Sterculia shillinglawii". IUCN Red List of Threatened Species 2018: e.T135889531A135889538. doi:10.2305/IUCN.UK.2018-2.RLTS.T135889531A135889538.en. https://www.iucnredlist.org/species/135889531/135889538. Retrieved 6 October 2023. 
  2. ↑ 2.0 2.1 "Sterculia shillinglawii". Centre for Australian National Biodiversity Research, Australian Government. https://id.biodiversity.org.au/name/apni/69587. 
  3. ↑ "Sterculia shillinglawii F.Muell.". Royal Botanic Gardens, Kew. 2023. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:825464-1. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 "PNGTreesKey – Sterculia shillinglawii F.Muel.". National Herbarium of New South Wales. 2023. https://www.pngplants.org/PNGtrees/TreeDescriptions/Sterculia_shillinglawii_F_Muell_subsp_sh.html. 
  5. ↑ 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 Cooper, Wendy; Cooper, William T. (June 2004). Fruits of the Australian Tropical Rainforest. Clifton Hill, Victoria, Australia: Nokomis Editions. p. 534. ISBN 9780958174213. https://www.nokomis.com.au/product/nokomis-published-books/fruits-australian-tropical-rainforest/. 
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 "Sterculia shillinglawii". Centre for Australian National Biodiversity Research (CANBR), Australian Government. 2020. https://apps.lucidcentral.org/rainforest/text/entities/Sterculia_shillinglawii.htm. 
  7. ↑ 7.0 7.1 "Two species of Sterculia, discovered by R. Parkinson, Esq., in New Britain". Botanisches Zentralblatt 31: 21. 1887. https://www.biodiversitylibrary.org/page/3113448. Retrieved 6 October 2023. 
  8. ↑ "Sterculia shillinglawii F.Muell.". 2023. https://www.gbif.org/species/7531802. 
  9. ↑ Beasley, John (2009). Plants of Cape York - the compact guide. John Beasley. p. 106. ISBN 978-0-9806863-0-2. 
  10. ↑ "TreePlotter". https://au.pg-cloud.com/Cairns/. 
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External links

Wikidata ☰ Q17579356 entry category:Flora of the Maluku Islands



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