Broad-leaved eucalyptus

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Broad-leaved eucalyptus
Eucalyptus dalrympleana

Eucalyptus dalrympleana

Systematics
Order : Myrtle-like (Myrtales)
Family : Myrtle family (Myrtaceae)
Subfamily : Myrtoideae
Tribe : Eucalypteae
Genre : Eucalyptus ( eucalyptus )
Type : Broad-leaved eucalyptus
Scientific name
Eucalyptus dalrympleana
Maiden

The broad-leaved eucalyptus ( Eucalyptus dalrympleana ) is a species of the myrtle family (Myrtaceae). It occurs in the mountainous regions of Southeast Australia and Tasmania , as well as around Adelaide , and is called "Mountain White Gum", "Seven-flowered Mountain Gum", "Mountain Gum", "White Gum", "Broad-leaved Kindling bark" or called "Broad-leaved Ribbon Gum".

description

Trunk and branches with bark
Leaves and fruits

Appearance and leaf

Eucalyptus dalrmypleana grows as a tree that reaches heights of 40 meters. The bark is smooth or sometimes remains on the lower part of the trunk, is gray and fibrous-scaly. Further up the tree it is white, gray, pink, or yellow and peeled in long ribbons.

In Eucalyptus dalrympleana , heterophylly is present. The oppositely arranged leaves on young specimens are circular to elliptical or egg-shaped and matt gray-green or green. The single-colored, glossy green leaves on adult specimens are narrow-lanceolate or lanceolate with a length of 10 to 20 cm and a width of 0.7 to 1.5 to 2.5 cm.

Inflorescence and flower

On inflorescence shafts with a narrow, flattened or angular cross section, 3 to 8 mm long, there are approximately three to seven-flowered partial inflorescences in total inflorescences . The pedicel-round flower stalks are - if available - up to 3 mm long. The flower buds are egg-shaped with a diameter of 3 to 5 mm and a length of 5 to 8 mm. The sepals form a conical calyptra , which is the same length and width as the flower cup (hypanthium). The flowers are white.

fruit

The fruit is hemispherical, oval or bell-shaped with a length of 5 to 8 mm and a diameter of 5 to 9 mm. The discus is flat or raised. The fruit trays stick out.

Occurrence

Broad-leaved eucalyptus ranges from the Great Dividing Range on the border between Queensland and New South Wales all the way down to central Victoria . This species of eucalyptus is also found in the Tasmanian highlands and in the mountains southeast of Adelaide . The broad-leaved eucalyptus is widespread in grassy, ​​sparse forests or hard -leaved forests . It grows on loamy or sandy soils at greater heights.

Systematics

The first description of Eucalyptus dalrympleana was made in 1920 by the British-Australian botanist Joseph Maiden in The Forest Flora of New South Wales , Volume 7, page 137. The type material has the caption "A mountain gum. Peppercorn Plain, Yarrangobilly, about 20 miles north of Kiandra, elevation about 4,700 feet. WAW de Beuzeville, Nos. 1, 2, 3. A large tree as described in his letter No. 409/20 January, 1920 ”.

Of Eucalyptus dalrympleana are two subspecies:

  • Eucalyptus dalrympleana Maiden, subsp. dalrympleana : It occurs in New South Wales, Victoria and Tasmania and has three-flowered inflorescences.
  • Eucalyptus dalrympleana subsp. heptanta LASJohnson: It occurs in Queensland and New South Wales, as well as in the Northern Territory , and has seven-flowered inflorescences.

In parts of the Northern Territory there is intergradation with Eucalyptus rubida .

Others

The broad-leaved eucalyptus received the "Award of Garden Merit" (AGM) from the Royal Horticultural Society .

Individual evidence

  1. a b Specimen search results: Eucalyptus dalrympleana at Australia's Virtual Herbarium. Council of Heads of Australasian Herbaria . Retrieved January 22, 2013
  2. a b APNI = Australian Plant Name Index . Center for Plant Biodiversity Research. Australian Government. Retrieved January 22, 2013
  3. a b c d e f g h K. Hill: Eucalyptus dalrympleana (Maiden) at New South Wales Flora Online . National Herbarium of NSW, Royal Botanic Garden, Sydney. Retrieved January 22, 2013
  4. a b Eucalyptus dalrympleana AGM . Royal Horticultural Society. 2011. Retrieved January 22, 2013
  5. Rafaël Govaerts (ed.): Eucalyptus dalrympleana. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved January 22, 2013.

Supplementary literature

  • Ivan Holliday: A field guide to Australian trees. 3rd, revised edition. Reed New Holland, Sydney et al. 2002, ISBN 1-876334-79-7 .

Web links

Commons : Broad-leaved Eucalyptus ( Eucalyptus dalrympleana )  - Collection of images, videos and audio files