Sphalmium

Sphalmium
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Proteales
Family:	Proteaceae
Subfamily:	Grevilleoideae
Genus:	Sphalmium ; (C.T.White) B.G.Briggs, B.Hyland & L.A.S.Johnson
Species:	S. racemosum
Binomial name
	Sphalmium racemosum; (C.T.White) B.G.Briggs, B.Hyland & L.A.S.Johnson
Synonyms
	Orites racemosaC.T.White

Last updated May 29, 2025

Sphalmium is a monotypic genus of flowering plants in the protea family.^[1]^[2]^[3]^[5] The only species, Sphalmium racemosum, is a large forest tree. Common names include satin silky oak, mystery oak, Mt Lewis oak, poorman's fishtail oak and buff silky oak.^[3]^[5]

The tree grows to 30 m (100 ft) or more. It is endemic to the upland rainforests of the wet tropics region of northeastern Queensland, Australia.^[2]^[3]^[5]

History

Botanists Barbara Briggs, Bernie Hyland and Lawrie Johnson named the new genus, updated the description and named the new species combination in 1975.^[2]^[4] They based the new species combination name on Cyril T. White's 1939 description of Orites racemosa, now a synonym.^[1]

References

1 2 3 4 White, Cyril T. (1939). "Orites racemosa". Proceedings of the Royal Society of Queensland . 50: 85.
1 2 3 4 Briggs, Barbara G.; Hyland, Bernie P.M.; Johnson, Lawrie A.S. (1975). "Sphalmium, a distrinctive genus of Proteaceae from north Queensland" . Australian Journal of Botany. 23 (1). pp. 165–172, fig. 1. doi:10.1071/BT9750165.
1 2 3 4 Hewson, Helen J. (1995). "Sphalmium". In McCarthy, Patrick (ed.). Flora of Australia: Volume 16: Eleagnaceae, Proteaceae 1 (online version). Flora of Australia series. CSIRO Publishing / Australian Biological Resources Study. pp. 342–343, Figs 81, 159, Map 394. ISBN 978-0-643-05692-3.
1 2 "Sphalmium racemosum". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 5 April 2013.
1 2 3 4 F.A. Zich; B.P.M Hyland; T. Whiffen; R.A. Kerrigan (2020). "Sphalmium racemosum". Australian Tropical Rainforest Plants, Edition 8. Commonwealth Scientific and Industrial Research Organisation (CSIRO). Retrieved 5 March 2021.

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[OriginalPublWhite1939-1] 1 2 3 4 White, Cyril T. (1939). "Orites racemosa". Proceedings of the Royal Society of Queensland . 50: 85.

[SphalmiumPublBriggsetal1975-2] 1 2 3 4 Briggs, Barbara G.; Hyland, Bernie P.M.; Johnson, Lawrie A.S. (1975). "Sphalmium, a distrinctive genus of Proteaceae from north Queensland" . Australian Journal of Botany. 23 (1). pp. 165–172, fig. 1. doi:10.1071/BT9750165.

[FloraAustralia-3] 1 2 3 4 Hewson, Helen J. (1995). "Sphalmium". In McCarthy, Patrick (ed.). Flora of Australia: Volume 16: Eleagnaceae, Proteaceae 1 (online version). Flora of Australia series. CSIRO Publishing / Australian Biological Resources Study. pp. 342–343, Figs 81, 159, Map 394. ISBN 978-0-643-05692-3.

[APNI-4] 1 2 "Sphalmium racemosum". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 5 April 2013.

[RFK8-5] 1 2 3 4 F.A. Zich; B.P.M Hyland; T. Whiffen; R.A. Kerrigan (2020). "Sphalmium racemosum". Australian Tropical Rainforest Plants, Edition 8. Commonwealth Scientific and Industrial Research Organisation (CSIRO). Retrieved 5 March 2021.

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