Floydia
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Floydia is a monotypic genus of plants in the Proteaceae family endemic to Australia. The sole described species is Floydia praealta, commonly known as the ball nut. It is a somewhat rare tree found only growing in the rainforests of southeastern Queensland and northeastern New South Wales. The tree has a superficial resemblance to the closely related Macadamia and could be confused with them. The fruit is poisonous.
Description
Floydia praealta is a tree growing to Template:Cvt tall with a trunk up to Template:Cvt diameter. The leaves are mid-green, shiny, glabrous and stiff.[1]Template:R/superscript[2]Template:R/superscript They measure up to Template:Cvt long by Template:Cvt wide and are held on a petiole up to Template:Cvt long.[1]Template:R/superscript[2]Template:R/superscript There are between 10 and 28 pairs of secondary veins and a densely reticulate tertiary venation which are all obvious on both surfaces.[1]Template:R/superscript[2]Template:R/superscript
The inflorescence is a raceme up to Template:Cvt long carrying numerous cream flowers in pairs. The flowers have 4 hairy tepals and are up to Template:Cvt long.[2]Template:R/superscript[3]Template:R/superscript The fruit is a globular, woody follicle around Template:Cvt diameter.[1]Template:R/superscript[2]Template:R/superscript[3]Template:R/superscript
Taxonomy
The species was formally described in 1862 by Victorian Government Botanist Ferdinand von Mueller based on plant material collected near the Clarence River in northern New South Wales and the Brisbane River in Queensland. In his publication Fragmenta phytographiæ Australiæ Mueller named the plant Helicia praealta. The species was transferred to the genus Macadamia in 1901 by Queensland Colonial Botanist Frederick Manson Bailey and then to Floydia in 1975 by Lawrie Johnson and Barbara Briggs.[1]Template:R/superscript[4]Template:R/superscript
Gallery
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References
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External links
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- View a map of recorded sightings of this species at the Australasian Virtual Herbarium
- View observations of this species on iNaturalist
- See images of this species on Flickriver
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- Roupaleae
- Flora of New South Wales
- Flora of Queensland
- Proteales of Australia
- Vulnerable flora of Australia
- Monotypic Proteaceae genera
- Taxa named by Ferdinand von Mueller
- Taxa named by Barbara G. Briggs
- Taxa named by Lawrence Alexander Sidney Johnson
- Endemic flora of Australia