Grevillea masonii
In the Mount Annan Botanic Gardens
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Proteales
Family: Proteaceae
Genus: Grevillea
Species:
G. masonii
Binomial name
Grevillea masonii
Olde & Marriott[1]
Fruit

Grevillea masonii, commonly known as Mason's grevillea,[2] is a species of flowering plant in the family Proteaceae and is endemic to a restricted area of New South Wales. It is a low-growing shrub with egg-shaped to elliptic leaves, and red and green flowers with a green style.

Description

Grevillea masonii is a shrub that typically grows to a height of 30–50 cm (12–20 in), has many stems and forms a lignotuber. The leaves are egg-shaped with the narrower end towards the base, to elliptic, 5–25 mm (0.20–0.98 in) long and 2–11 mm (0.079–0.433 in) wide, the upper surface finely granulose and the lower surface silky-hairy. The flowers are arranged clusters of 6 to 10 on a woolly-hairy rachis 1–5 mm (0.039–0.197 in) long. The flowers are red, green near the base, and woolly-hairy with a green style, the pistil 18–24 mm (0.71–0.94 in) long. Flowering occurs from July to November and the fruit is a oval to oblong follicle 11–18 mm (0.43–0.71 in) long with the curved remains of the style attached.[2][3][4]

Taxonomy

Grevillea masonii was first formally described in 1994 by Peter M. Olde and Neil R. Marriott in the journal Telopea from specimens collected near Casino in 1992.[5] The specific epithet (masonii) honours David Mason, a plant collector from northern New South Wales.[4]

Distribution and habitat

Mason's grevillea grows in woodland and is only known from near Casino and Grafton in northern New South Wales.[3][6]

Conservation status

Grevillea masonii is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the New South Wales Government Biodiversity Conservation Act 2016 (NSW). The main threats to the species include inappropriate fire regimes, drought, weed invasion and dieback caused by Phytophthora cinnamomi.[2][6][7]

Use in horticulture

This grevillea can be grown from seed or from cuttings and is hardy in well-drained soil in a sunny or partly shaded position.[8]

References

  1. ↑ "Grevillea masonii". Australian Plant Census. Retrieved 2 July 2022.
  2. 1 2 3 Makinson, Robert O. "Grevillea masonii". Royal Botanic Garden Sydney. Retrieved 2 July 2022.
  3. 1 2 "Grevillea masonii". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 2 July 2022.
  4. 1 2 Olde, Peter M.; Marriott, Neil R. (1994). "A taxonomic revision of Grevillea arenaria and Grevillea obtusiflora (Proteaceae: Grevilleoideae)". Telopea. 5 (4): 720–722. Retrieved 2 July 2022.
  5. ↑ "Grevillea masonii". APNI. Retrieved 2 July 2022.
  6. 1 2 "Mason's Grevillea - profile". New South Wales Government Office of Environment and Heritage. Retrieved 2 July 2022.
  7. ↑ "Conservation advice for Grevillea masonii (Mason's Grevillea)" (PDF). Australian Government Department of Agriculture, Water and the Environment. Retrieved 2 July 2022.
  8. ↑ "Grevillea masonii". Australian Native Plants Society (Australia). Retrieved 2 July 2022.
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