Eucalyptus pruiniramis

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Eucalyptus pruiniramis - Wikipedia

From Wikipedia, the free encyclopedia

Jingymia gum
Conservation status
Endangered (EPBC Act)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Myrtales
Family:	Myrtaceae
Genus:	Eucalyptus
Species:	E. pruiniramis
Binomial name
*Eucalyptus pruiniramis* L.A.S.Johnson & K.D.Hill^[1]

Eucalyptus pruiniramis, commonly known as Jingymia gum or midlands gum^[2] is a species of mallee or tree that is endemic to a small area of Western Australia. It usually has rough bark on the lower half of the trunk, smooth bark above, dull green, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and cylindrical to cup-shaped fruit.

Description

Eucalyptus pruiniramis is a mallee, sometimes a small straggly tree, that typically grows to a height of 2.5–7 m (8 ft 2 in – 23 ft 0 in) and forms a lignotuber. It has smooth greyish or blackish bark, usually with rough fibrous bark on the lower half of the trunk. Young plants have stems that are square in cross-section and leaves that are greyish green, broadly egg-shaped to round, 45–105 mm (1.8–4.1 in) long and 40–65 mm (1.6–2.6 in) wide. Adult leaves are the same shade of dull green on both sides, lance-shaped, 85–125 mm (3.3–4.9 in) long and 15–33 mm (0.59–1.30 in) wide, tapering to a petiole 15–30 mm (0.59–1.18 in) long. The flower buds are arranged in leaf axils in groups of seven, nine or eleven on a flattened, unbranched peduncle 8–20 mm (0.31–0.79 in) long, the individual buds on pedicels 2–5 mm (0.079–0.197 in) long. Mature buds are broadly spindle-shaped to oval, 11–16 mm (0.43–0.63 in) long and 5–7 mm (0.20–0.28 in) wide with a conical operculum. Flowering occurs in summer and the flowers are white. The fruit is a woody, cylindrical to cup-shaped capsule 8–12 mm (0.31–0.47 in) long and 8–10 mm (0.31–0.39 in) wide with the valves near rim level.^[2]^[3]^[4]^[5]

Taxonomy

Eucalyptus pruiniramis was first formally described in 1992 by Lawrie Johnson and Ken Hill in the journal Telopea.^[4]^[6] The specific epithet (pruiniramis) is from Latin, meaning "rime" or "hoar-frost" and "-of a branch", referring to the white, waxy covering on the branches.^[3]^[7]

Distribution and habitat

Jingymia mallee grows in low mallee woodland on rocky hillsides between Mogumber and Arrino. It is only known from nine populations with a total of about 58 plants and only one population is in a reserve.

Conservation status

This mallee is listed as "endangered" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia).^[5] The main threats to the species are road and fence maintenance, gravel extraction, grazing and weed infestation.^[2]^[5]

References

^ "Eucalyptus pruiniramis". Australian Plant Census. Retrieved 6 December 2019.
^ ^a ^b ^c "Approved Conservation Advice for Eucalyptus pruiniramis (Midlands Gum)" (PDF). Australian government Department of the environment. Retrieved 6 December 2019.
^ ^a ^b "Eucalyptus pruiniramis". Euclid: Centre for Australian National Biodiversity Research. Retrieved 30 May 2020.
^ ^a ^b Johnson, Lawrence A.S.; Hill, Kenneth D. (1992). "Systematic studies in the eucalypts - 5. New taxa and combinations in Eucalyptus (Myrtaceae) in Western Australia". Telopea. 4 (4): 563.
^ ^a ^b ^c "Eucalyptus pruiniramis". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
^ "Eucalyptus pruiniramis". APNI. Retrieved 6 December 2019.
^ Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 284. ISBN 9780958034180.

Taxon identifiers
Eucalyptus pruiniramis	Wikidata: Q15354812 Wikispecies: Eucalyptus pruiniramis APNI: 118926 CoL: 6H6CC EoL: 636519 FloraBase: 13040 FoAO2: Eucalyptus pruiniramis GBIF: 3176579 IPNI: 960873-1 IRMNG: 10176382 IUCN: 133372913 NCBI: 1711489 Open Tree of Life: 3936077 Plant List: kew-73707 POWO: urn:lsid:ipni.org:names:960873-1 SPRAT: 56403 Tropicos: 50183222 WFO: wfo-0000955696

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Description

Taxonomy

Distribution and habitat

Conservation status

See also

References