Philotheca myoporoides subsp. petraea

Philotheca myoporoides subsp. petraea is a subspecies of flowering plant in the family Rutaceae and is endemic to a small area in Victoria, Australia. It is an erect shrub with leathery, egg-shaped leaves with the narrower end towards the base, and white flowers arranged singly or in groups of up to four in leaf axils.

Philotheca myoporoides subsp. petraea
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Philotheca
Species:
P. myoporoides
Subspecies:
P. m. subsp. petraea
Trinomial name
Philotheca myoporoides subsp. petraea
Rozefelds[1]
Synonyms[1]
  • Philotheca myoporoides subsp. petraeus Rozefelds orth. var.
  • Eriostemon myoporoides subsp. myoporoides auct. non DC.: Bayly, M.J.
  • Philotheca myoporoides auct. non (DC.) Bayly

Description

Philotheca myoporoides subsp. petraea is an erect shrub that typically grows to a height of 1 m (3 ft 3 in) with glabrous, green, prominently glandular-warty stems. The leaves are leathery, egg-shaped with the narrower end towards the base, 8–16 mm (0.31–0.63 in) long, 4–7 mm (0.16–0.28 in) wide and V-shaped in cross-section. The flowers are arranged singly or in groups of up to four in leaf axils on a peduncle 2–3 mm (0.079–0.118 in) long, each flower on a pedicel 2.5–3 mm (0.098–0.118 in) long with conspicuous bracteoles at the base. The sepals are semicircular, about 1 mm (0.039 in) long and 1.5 mm (0.059 in) wide, the petals elliptical, white, about 6 mm (0.24 in) long and 2.3–3 mm (0.091–0.118 in) wide. The stamens are free from each other and hairy. Flowering has been observed in November.[2][3]

Taxonomy and naming

This subspecies was first formally described in 2001 by Andrew Carl Frank Rozefelds in the journal Muelleria from specimens collected on Mount Stewart in East Gippsland in 1995.[3][4]

Distribution and habitat

This subspecies is only known from the summit of Mount Stewart near Gelantipy where it grows in rocky shrubland at an altitude of about 800 m (2,600 ft).[2][3]

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References
  1. "Philotheca myoporoides subsp. petraea". Australian Plant Census. Retrieved 8 August 2020.
  2. Walsh, Neville; Stajsic, Val. "Philotheca myoporoides subsp. petraea". Royal Botanic Gardens Victoria. Retrieved 8 August 2020.
  3. Rozefelds, Andrew C.F. (2001). "Notes on the Philotheca myoporoides complex (Rutaceae) in Victoria". Muelleria. 14: 15–17. Retrieved 8 August 2020.
  4. "Philotheca myoporoides subsp. petraea". APNI. Retrieved 8 August 2020.
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