Philotheca trachyphylla

Philotheca trachyphylla, commonly known as rock wax-flower,[2] is a species of plant in the family Rutaceae and is endemic to south-eastern Australia. It is a shrub or small tree with glandular-warty, oblong to narrow egg-shaped leaves and white flowers arranged singly or in twos or threes, in leaf axils.

Rock wax-flower
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Philotheca
Species:
P. trachyphylla
Binomial name
Philotheca trachyphylla
Synonyms[1]
  • Eriostemon trachyphyllus F.Muell. nom. inval., nom. nud.
  • Eriostemon trachyphyllus F.Muell. var. trachyphyllus

Description

Philotheca trachyphylla is a shrub or small tree that typically grows to a height of 2–7 m (6 ft 7 in–23 ft 0 in) and has cylindrical, glandular-warty branchlets. The leaves are oblong to elliptical or narrow egg-shaped with the narrower end towards the base, usually 30–50 mm (1.2–2.0 in) long and 5–9 mm (0.20–0.35 in) wide with small glandular-warty edges. The flowers are arranged singly or in twos or threes in leaf axils, each flower on a pedicel 6–12 mm (0.24–0.47 in) long. The five sepals are more or less round, about 1 mm (0.039 in) long and the petals are white, elliptical and 6–7 mm (0.24–0.28 in) long. The ten stamens are linear, tapering towards the tip and hairy.[2][3][4]

Taxonomy

Rock wax-flower was formally described in 1855 by Victorian Government Botanist Ferdinand von Mueller who gave it the name Eriostemon trachyphyllus and published the description in his book, Definitions of rare or hithertoo undescribed Australian Plants.[5][6] In 1998, Paul Wilson changed the name to Philotheca trachyphylla in the journal Nuytsia.[7][8]

Distribution and habitat

Philotheca trachyphylla occurs on hillsides and in gullies within forests in New South Wales and Victoria. In New South Wales it is mainly found in coastal ranges south from Braidwood and in Victoria east from the Brythen-Ensay area.[2][3][4]

References
  1. "Philotheca trachyphylla". Australian Plant Census. Retrieved 15 August 2020.
  2. Wilson, Paul G.; Wilson, Annette J.G. (ed.) (2013). Flora of Australia (Volume 26). Canberra: Australian Biological Resources Study. p. 400. Retrieved 15 August 2020.CS1 maint: extra text: authors list (link)
  3. Weston, Peter H.; Harden, Gwen J. "Philotheca trachyphylla". Royal Botanic Garden Sydney. Retrieved 15 August 2020.
  4. Bayly, Michael J.; Stajsic, Val. "Philotheca trachyphylla". Royal Botanic Gardens Victoria. Retrieved 15 August 2020.
  5. "Eriostemon trachyphyllus". APNI. Retrieved 15 August 2020.
  6. von Mueller, Ferdinand (1855). Definitions of rare or hitherto undescribed Australian plants. Melbourne: Goodhugh & Trembath. pp. 22–23. Retrieved 15 August 2020.
  7. "Philotheca trachyphylla". APNI. Retrieved 15 August 2020.
  8. Wilson, Paul G. (1998). "A Taxonomic Review of the genera Eriostemon and Philotheca". Nuytsia. 12 (2): 260. Retrieved 15 August 2020.
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