Darwinia terricola

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Blackwood bell
Status DECF P1.svg
Priority One — Poorly Known Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Darwinia
Species:
D. terricola
Binomial name
Darwinia terricola

Darwinia terricola, commonly known as the Blackwood bell, is a plant in the myrtle family Myrtaceae and is endemic to a small area in the south-west of Western Australia. It is a small, low, sometimes prostrate shrub with small, linear leaves and small groups of flowers surrounded by reddish-green bracts and which usually lie on the ground.

Contents

Description

Darwinia terricola is a spreading or prostrate shrub which grows to 20 centimetres (8 in) tall and 30 centimetres (10 in) wide and which has many stems spreading from a woody base. Its leaves are linear in shape, 4–9 millimetres (0.2–0.4 in) long and less than 0.7 millimetres (0.03 in) wide, triangular in cross-section and with scattered cilia along the edges. The flowers are arranged in groups, usually of between five and seven, the groups 17–19 millimetres (0.67–0.75 in) long and 10–12 millimetres (0.4–0.5 in) wide. The flowers are surrounded by several rows of leaf-like bracts which are green at first, but which turn reddish-green and increase in size to 13–20 millimetres (0.5–0.8 in) long and 2 millimetres (0.08 in) wide as the flowers develop. The groups of flowers lie on the ground or on top of leaves, each flower brown, tube-shaped and 3–4 millimetres (0.1–0.2 in) long with five ridges on the sides. The petals are white with a curved style 11–12 millimetres (0.4–0.5 in) long extending beyond the petal tube. There is a ring of short hairs near the end of the style. Flowering occurs in November and December. [2]

Taxonomy and naming

Darwinia terricola was first formally described in 2012 by Greg Keighery from a specimen collected in the Blackwood State Forest between Margaret River and Nannup. The description was published in the Western Australian Naturalist. [3] The specific epithet (terricola) is derived from the Latin word terra meaning "earth", "ground" or "soil" [4] :291 and the suffix -cola meaning "inhabitant", [4] :217 referring to the prostrate habit of this species and the manner in which the flowers lie on the ground. [2]

Distribution and habitat

Blackwood bell is only known from the Blackwood State Forest in the Jarrah Forest biogeographic region where it grows in sandy clay in mallee shrubland. [2] [5]

Conservation status

Darwinia terricola is classified as "Threatened Flora (Declared Rare Flora — Extant)" by the Western Australian Government Department of Parks and Wildlife. [5]

Related Research Articles

<i>Darwinia</i> (plant) Genus of flowering plants

Darwinia, sometimes commonly known as mountain bells or simply bells, is a genus of about 70 species of evergreen shrubs in the family Myrtaceae, endemic to southeastern and southwestern Australia. The majority are native to southern Western Australia, but a few species occur in South Australia, New South Wales and Victoria. The genus was named in honour of Erasmus Darwin, grandfather of Charles Darwin by Edward Rudge in 1816. Most darwinias grow to a height of between 0.2 and 3 m, and many are prostrate shrubs. Most have small, simple leaves and the flowers are often grouped together, each flower with five red, white or greenish petals and ten stamens. In many species, the flowers are surrounded by large, colourful bracts, giving rise to their common names.

<i>Darwinia citriodora</i> Species of flowering plant

Darwinia citriodora, commonly known as lemon-scented darwinia or lemon scented myrtle, is a plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with oblong to lance-shaped leaves and red, yellow and orange flowers over an extended period. It is a hardy plant in well-drained soil, is often cultivated and used as a rootstock for less hardy species.

<i>Pimelea physodes</i>

Pimelea physodes, commonly known as Qualup bell, is a species of shrub that is endemic to Western Australia. It has egg-shaped to narrow elliptical leaves and distinctive bell-like inflorescences with tiny greenish flowers surrounded by long elliptical bracts. The inflorescence resembles those of some of the only distantly-related darwinia "bells" and the bracts are a combination of red, purple, green and cream-coloured.

<i>Darwinia glaucophylla</i> Species of flowering plant

Darwinia glaucophylla is a plant in the myrtle family Myrtaceae which grows as a prostrate shrub, sometimes forming extensive mats. It has bluish green leaves and white flowers in small groups which fade to reddish pink as they age. It is only known from about fifteen sites in the Gosford area and is listed as "threatened" in New South Wales legislation.

<i>Darwinia collina</i> Species of flowering plant

Darwinia collina, commonly known as the yellow mountain bell, is a plant in the myrtle family Myrtaceae. It grows as an erect shrub 0.3–1.2 metres (1–4 ft) high with crowded elliptical leaves and bright yellow flower-like inflorescences. It is endemic to a few small areas in the Stirling Range National Park, Western Australia and as a result is classified as an endangered species.

<i>Darwinia oxylepis</i> Species of flowering plant

Darwinia oxylepis, commonly known as Gillham's bell, is a plant in the myrtle family Myrtaceae. It grows as a dense, upright shrub 1.0–1.5 m (3.3–4.9 ft) high, and produces large numbers of red inflorescences prominently displayed on the ends of the branchlets in spring. It is one of a group of Darwinias including D. leiostyla, D. macrostegia, D. meeboldii, D. collina and D. squarrosa collectively known as mountain bells. The species is found in only a few seasonally moist gullies near the lower slopes of the Stirling Range National Park and nearby Porongurup National Park and is therefore classified as endangered.

<i>Darwinia apiculata</i> Species of flowering plant

Darwinia apiculata, commonly known as the scarp darwinia, is a plant in the myrtle family Myrtaceae and is endemic to a small area in Western Australia. It is a rounded, densely branched, small shrub with thin red branches and scattered small leaves. The flowers are arranged in small groups on the ends of the branches, their most obvious feature being long, red, pointed bracts surrounding each flower and a longer red style with scattered hairs near its tip.

<i>Darwinia capitellata</i> Species of flowering plant

Darwinia capitellata is a plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a bushy, many-branched shrub, very similar to Darwinia diosmoides but differs in the arrangement of its flowers, its more branched habit, prominent oil glands on the younger stems and its thinner, paper-like bracteoles. It was first discovered as a separate species when specimens of it were found to have a larger chromosome number than specimens of D. diosmoides.

<i>Darwinia carnea</i> Species of flowering plant

Darwinia carnea, commonly known as Mogumber bell or Narrogin bell is a plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a small shrub with narrow, keeled leaves and flowers in groups of about eight, surrounded by yellowish-green to pinkish-red bracteoles. It occurs in small, isolated populations near the towns which contribute to its common names. It is the only "bell-flowered" Darwinia to not grow in the Stirling Range National Park.

<i>Darwinia chapmaniana</i> Species of flowering plant

Darwinia chapmaniana, commonly known as Chapman's bell or Eganu bell, is a plant in the myrtle family Myrtaceae, and is endemic to the south-west of Western Australia. It is a low, rounded, spreading shrub with greyish, hairy leaves and flowers in heads of about 14 small, tubular flowers. The heads are surrounded by long, reddish-yellow, hairy bracts.

<i>Darwinia wittwerorum</i> Species of flowering plant

Darwinia wittwerorum, commonly known as Wittwer's darwinia, is a plant in the myrtle family Myrtaceae and is endemic to a small area in Western Australia. An erect, spindly shrub with fine leaves and hanging groups of flowers surrounded by leaf-like bracts, it is one of the darwinias known as mountain bells.

<i>Darwinia acerosa</i> Species of flowering plant

Darwinia acerosa, commonly known as the fine-leaved darwinia, is a plant in the myrtle family Myrtaceae and is endemic to a small area in south-west of Western Australia. It is a densely branched, heath-like shrub with crowded, finely pointed leaves and drooping heads of forty to fifty yellowish-green flowers.

<i>Darwinia procera</i> Species of flowering plant

Darwinia procera is a plant in the myrtle family Myrtaceae and is endemic to a small area in New South Wales. It is a shrub with laterally compressed leaves, so that they are thicker than wide. The flowers are reddish-purple and arranged in groups of four near the ends of the branches. Although rare in nature, this species is often grown by native plant enthusiasts.

Darwinia ferricola, commonly known as the Scott River darwinia, is a plant in the myrtle family Myrtaceae and is endemic to a small area in Western Australia. It is a rounded, densely branched shrub with crowded, linear leaves mostly only on younger branches. The flowers are greenish-yellow and red, and arranged in groups on the ends of the branches, with a long white or reddish style protruding from the petal tube.

<i>Darwinia foetida</i> Species of flowering plant

Darwinia foetida, commonly known as Muchea bell, is a plant in the myrtle family Myrtaceae, and is endemic to Western Australia. It is a small upright shrub with greenish coloured nodding flowers at the apex of the stems, that have an unpleasant odour. This is a very restricted species, known from only a couple of locations.

<i>Darwinia hortiorum</i> Species of flowering plant

Darwinia hortiorum is a plant in the myrtle family Myrtaceae and is endemic to Western Australia. It is a compact, densely branched shrub with small leaves and inflorescences composed of up to twenty flowers with glossy, pale yellow to reddish petals and fleshy dark green sepals surrounded by papery brown bracteoles.

Darwinia nubigena, commonly known as success bell or red mountain bell, is a plant in the myrtle family Myrtaceae and is endemic to Western Australia.

<i>Darwinia polychroma</i> Species of flowering plant

Darwinia polychroma, commonly known as the Harlequin bell, is a plant in the myrtle family Myrtaceae and is endemic to Western Australia.

<i>Darwinia whicherensis</i> Species of flowering plant

Darwinia whicherensis, commonly known as the Abba bell, is a plant in the myrtle family Myrtaceae and is endemic to the south-west of Western Australia. It is a small shrub with linear leaves and bell-shaped, flower-like inflorescences containing more than twenty flowers surrounded by bracts, the largest of which are red with green edges.

<i>Darwinia diminuta</i> Species of flowering plant

Darwinia diminuta is a plant in the myrtle family Myrtaceae and is endemic to New South Wales. A small spreading shrub with white to pinkish tubular flowers arranged in pairs, with a restricted distribution mostly in the Sydney region.

References

  1. Keighery, Gregory J. "Darwinia terricola". APC. Combined Heads of Australasian Herbaria. Retrieved 30 March 2019.
  2. 1 2 3 Keighery, Greg (2012). "A new species of Darwinia (Myrtaceae) from Western Australia". Western Australian Naturalist. 28: 116–119.
  3. "Darwinia terricola". APNI. Retrieved 10 February 2017.
  4. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
  5. 1 2 "Darwinia terricola". FloraBase . Western Australian Government Department of Parks and Wildlife.