Regelia

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For the genus of bromeliads, see Neoregelia.

Regelia
Regelia megacephala inflorescence in Royal Botanic Gardens, Cranbourne
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Subfamily:
Myrtoideae
Tribe: Melaleuceae
Genus: Regelia
Schauer
Species

See text

Regelia is a

endemic to the south-west of Western Australia. The genus is composed of five species of small leaved, evergreen shrubs which have heads of flowers on the ends of branches which continue to grow after flowering. Another species, previously known as Regelia punicea and which is endemic to Kakadu National Park in the Northern Territory, has been transferred to Melaleuca punicea
.

Description

Plants in the genus Regelia are woody, evergreen shrubs ranging in height from 1–6 metres (3–20 ft). Their leaves are small, arranged in opposite pairs or spirally and are noted for bearing essential oils. Their flowers are pinkish purple, rarely red, and are arranged in heads on the ends of branches which continue to grow after flowering. The flowers have 5

capsules with three valves and have a maximum of two fertile seeds in each valve.[1][2]

Taxonomy and naming

The genus Regelia was first formally described in 1843 by

botanist Eduard August von Regel.[1]

Distribution and habitat

All five Regelia species are found in the South West Botanical Province. They grow in sand or sandy soil, often on the margins of winter-wet depressions.[5]

Conservation

Two species, Regelia cymbifolia and Regelia megacephala, are classified as "Priority Four" by the Western Australian government Department of Parks and Wildlife[1] meaning that they are rare or near threatened.[6]

Species

There are currently five recognized species of Regelia. A sixth species, Regelia punicea was originally formally described in 1984 by N.B.Byrnes as Melaleuca punicea,[7] renamed Regelia punicea by B.A.Barlow in 1987,[8] then Petraeomyrtus punicea by L.A.Craven in 2010[9] and finally in 2013, returned to Melaleuca punicea by Craven on the basis of molecular data.[10]

References

  1. ^
    Department of Biodiversity, Conservation and Attractions
    .
  2. ISBN 9783642143960
    . Retrieved 26 August 2015.
  3. ^ "Regelia". APNI. Retrieved 26 August 2015.
  4. ^ Schauer, Johannes Conrad (1843). "Genera Myrtacearum nova vel denuo recognita". Linnaea: Ein Journal für die Botanik in ihrem ganzen Umfange. 17: 243–244. Retrieved 26 August 2015.
  5. ISBN 0646402439
    .
  6. ^ "Conservation codes for Western Australian flora and fauna" (PDF). Western Australian Government Department of Parks and Wildlife. Retrieved 26 August 2015.
  7. ^ "Melaleuca punicea". APNI. Retrieved 26 August 2015.
  8. ^ "Regelia punicea". APNI. Retrieved 26 August 2015.
  9. ^ "Petraeomyrtus punicea". APNI. Retrieved 26 August 2015.
  10. ISBN 9781922137517
    . Retrieved 26 August 2015.
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