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Calytrix nematoclada

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Calytrix nematoclada
Holotype in the Australian National Herbarium

Priority Three — Poorly Known Taxa (DEC)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Calytrix
Species:
C. nematoclada
Binomial name
Calytrix nematoclada
Synonyms[1]
  • Lhotskya ciliata Benth.
  • Lhotzkya ciliata Benth. orth. var.

Calytrix nematoclada is a species of flowering plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with decussate, narrowly elliptic to egg-shaped leaves and purple or deep pink flowers with about 35 to 40 stamens in three rows.

Description

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Calytrix nematoclada is a shrub that typically grows to a height of up to 15–50 cm (5.9–19.7 in) and has hairy branchlets. Its leaves are decussate, narrowly elliptic to egg-shaped, 1.5–3 mm (0.059–0.118 in) long, 0.5–1 mm (0.020–0.039 in) wide and sessile. There are no stipules at the base of the petiole. The flowers are borne on a funnel-shaped peduncle 3.5–5.0 mm (0.14–0.20 in) long with egg-shaped to more or less round lobes 1.0–1.5 mm (0.039–0.059 in) long. The floral tube is cone-shaped with the narrower end towards the base, 2.5–3.5 mm (0.098–0.138 in) long and has 10 ribs. The sepals are fused at the base, with egg-shaped or elliptic lobes 0.75–1.0 mm (0.030–0.039 in) long and 1.3–1.5 mm (0.051–0.059 in) wide. The petals are purple or deep pink, elliptic to egg-shaped, 5.0–6.5 mm (0.20–0.26 in) long and 2.75–3.0 mm (0.108–0.118 in) wide, and there are about 35 to 40 stamens in three rows. Flowering occurs from November to January.[2][3]

Taxonomy

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Calytrix nematoclada was first formally described in 1987 by Lyndley Craven in the journal Brunonia.[4] The specific epithet (nematoclada) means 'thread-like branchlets'.[2][5]

Distribution and habitat

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This species of Calytrix grows in heath with Actinostrobus on sand, with Eucalyptus tetragona in low scrub, and with E. incrassata in tall open shrubland in the Bendering-Lake King-Ongerup area in the Esperance Plains and Mallee bioregions of south-western Western Australia.[2]

Conservation status

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Calytrix nematoclada is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions[3] meaning that it is poorly known and known from only a few locations but is not under imminent threat.[6]

References

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  1. ^ a b "Calytrix nematoclada". Australian Plant Census. Retrieved 1 December 2024.
  2. ^ a b c Craven, Lyndley (1987). "A taxonomic revision of Calytrix Labill. (Myrtaceae)". Brunonia: 121–122.
  3. ^ a b "Calytrix nematoclada". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ "Calytrix nematoclada". Australian Plant Name Index. Retrieved 1 December 2024.
  5. ^ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 259. ISBN 9780958034180.
  6. ^ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Biodiversity, Conservation and Attractions. Retrieved 1 December 2024.