Thryptomene duplicata

Priority One — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Thryptomene
Species:
T. duplicata
Binomial name
Thryptomene duplicata

Thryptomene duplicata is a species of flowering plant in the family Myrtaceae and is endemic to Western Australia. It is a spreading shrub with upward pointing, egg-shaped leaves with the narrower end towards the base, and white flowers with five petals and about fifteen stamens in two whorls.

Description

Thryptomene duplicata is a spreading shrub that typically grows to about 0.8 m (2 ft 7 in) high and 2 m (6 ft 7 in) wide. Its leaves are pointed upwards, overlapping each other and egg-shaped with the narrower end towards the base, about 2.6 mm (0.10 in) long and 2.5–3.5 mm (0.098–0.138 in) wide on a petiole up to 1.0 mm (0.039 in) long. The flowers are arranged in pairs or threes on peduncles 0.7–1.4 mm (0.028–0.055 in) long with egg-shaped bracteoles about 2 mm (0.079 in) long that persist until the fruit falls. The flowers are about 6 mm (0.24 in) in diameter with egg-shaped sepals about 1.4 mm (0.055 in) long, with the narrower end towards the base. The petals are white, about 2 mm (0.079 in) long with minute teeth on the edges, and there are about fifteen stamens arranged in two whorls. Flowering occurs around December.[2][3]

Taxonomy

Thryptomene duplicata was first formally described in 2001 by Barbara Lynette Rye and Malcolm Eric Trudgen in the journal Nuytsia from specimens collected by Trudgen near Binnu in 1993.[2][4] The specific epithet (duplicata) means "doubled", referring to the number of stamens compared to that of other thryptomenes.[2]

Distribution and habitat

This thryptomene is only known from a single population near Binnu where it grows in sandy soil in open shrubland.[3]

Conservation status

Thryptomene duplicata is classified as "Priority One" by the Government of Western Australia Department of Parks and Wildlife,[3] meaning that it is known from only one or a few locations that are potentially at risk.[5]

References

  1. ↑ "Thryptomene duplicata". Australian Plant Census. Retrieved 28 April 2021.
  2. 1 2 3 Rye, Barbara L.; Trudgen, Malcolm E. (2001). "A taxonomic revision of Thryptomene section Thryptomene (Myrtaceae)". Nuytsia. 13 (3): 520–521. Retrieved 28 April 2021.
  3. 1 2 3 "Thryptomene duplicata". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Thryptomene duplicata". APNI. Retrieved 28 April 2021.
  5. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 28 April 2021.
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