Ricinocarpos verrucosus

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Ricinocarpos verrucosus
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Malpighiales
Family: Euphorbiaceae
Genus: Ricinocarpos
Species:
R. verrucosus
Binomial name
Ricinocarpos verrucosus

Ricinocarpos verrucosus is a species of flowering plant in the family Euphorbiaceae and is endemic to north-eastern Queensland. It is an monoecious shrub with very narrowly elliptic or narrowly lance-shaped leaves, and flowers usually arranged with one or two female flowers with eight to twenty male flowers above them.

Contents

Description

Ricinocarpos verrucosus is a monoecious shrub that typically grows to up to a height 4 m (13 ft), and has many stems, its young branchlets glabrous. The leaves are very narrowly elliptic or narrowly lance-shaped, 45–100 mm (1.8–3.9 in) long and 2–4 mm (0.079–0.157 in) wide on a glabrous petiole 1.4–2 mm (0.055–0.079 in) long. The upper surface of the leaves is glabrous and the lower surface is covered with soft, star-shaped hairs. The flowers are usually arranged with one or two female flowers with eight to twenty male flowers above them. Male flowers are on a slender pedicel 2–3 mm (0.079–0.118 in) long, the four sepals joined at the base and more or less glabrous, the sepal lobes egg-shaped to elliptic, 2.5–3.3 mm (0.098–0.130 in) long. Each male flower has about 40 stamens. Female flowers are on a stout, hairy pedicel 5–10 mm (0.20–0.39 in) long, the sepal lobes 3.4–4.2 mm (0.13–0.17 in) long and 1.5–2.0 mm (0.059–0.079 in) long. Flowering has been observed in February, May, and from September to November, and the fruit is a capsule 6–8 mm (0.24–0.31 in) long and 9–10 mm (0.35–0.39 in) wide and warty. [2]

Taxonomy and naming

Ricinocarpos verrucosus was first formally described in 2007 by David Halford and Rodney Henderson in the journal Austrobaileya from a specimen collected by Henderson at Mount Alto, 4 km (2.5 mi) south-south-west of Mount Carbine in 1989. [2] [3] The specific epithet (verrucosus) means "warty", referring to the texture of the surface of the fruit. [2]

Distribution and habitat

This species grows among granite boulders on rocky hillsides or on the banks of rocky streams in open woodland, in Cape Melville National Park and around Mount Carbine in north-eastern Queensland. [2]

Related Research Articles

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<i>Ricinocarpos cyanescens</i> Species of shrub

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<i>Ricinocarpos glaucus</i> Species of shrub

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<i>Ricinocarpos gloria-medii</i> Species of shrub

Ricinocarpos gloria-medii is a species of flowering plant in the family Euphorbiaceae and is endemic to the Northern Territory of Australia. It is a spreading, monoecious or dioecious shrub with linear leaves and male and female flowers arranged singly or in small groups.

Ricinocarpos graniticus is a species of flowering plant in the family Euphorbiaceae and is endemic to the southwest of Western Australia. It is a monoecious shrub with linear leaves and creamy white flowers, arranged either singly, or with a single female flower surrounded by one or two male flowers.

<i>Ricinocarpos ledifolius</i> Species of shrub

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<i>Ricinocarpos linearifolius</i> Species of shrub

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Ricinocarpos marginatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the north-west of Western Australia. It is an erect, monoecious shrub with narrowly elliptic leaves and white flowers arranged in groups of male flowers, or up to three female flowers surrounded by many male flowers.

<i>Ricinocarpos megalocarpus</i> Species of shrub

Ricinocarpos megalocarpus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south coast of Western Australia. It is a compact, rounded, usually monoecious shrub with linear leaves and white flowers, arranged either singly, or male flowers in groups, or with a single female flower surrounded by up to six male flowers.

<i>Ricinocarpos muricatus</i> Species of shrub

Ricinocarpos muricatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect to spreading, sticky, monoecious shrub with linear leaves and yellow flowers arranged in a raceme, with one or two female flowers surrounded by 8 to 12 male flowers.

Ricinocarpos oliganthus is a species of flowering plant in the family Euphorbiaceae and is endemic to a small area in the south-west of Western Australia. It is a monoecious shrub with linear to narrowly oblong leaves and white to creamy white flowers arranged singly on the ends of branchlets.

Ricinocarpos pilifer is a species of flowering plant in the family Euphorbiaceae and is endemic to a small area in the south-west of Western Australia. It is a compact monoecious shrub with narrowly oblong leaves and creamy white flowers arranged singly, or with two to four male flowers, or a single female flower with one or two male flowers.

<i>Ricinocarpos psilocladus</i> Species of shrub

Ricinocarpos psilocladus is a species of flowering plant in the family Euphorbiaceae and is endemic to the west coast of Western Australia. It is an erect, open, monoecious or dioecious shrub with linear to narrowly oblong or narrowly egg-shaped leaves, and white or yellow flowers arranged singly, or with two to five male flowers, or a single female flower surrounded by up to three male flowers.

Ricinocarpos rosmarinifolius is a species of flowering plant in the family Euphorbiaceae and is endemic to the Kimberley of northern Western Australia. It is an erect, slender monoecious shrub with linear leaves and inconspicuous white flowers arranged singly, or with two to four male flowers, or a single female flower surrounded by up to four male flowers.

Ricinocarpos ruminatus is a species of flowering plant in the family Euphorbiaceae and is endemic to the Expedition Range in central Queensland. It is an erect, monoecious shrub with linear leaves and white flowers, arranged on the ends of branches with 2 to 5 male flowers, or a female flower surrounded by up to 4 male flowers.

Ricinocarpos stylosus is a species of flowering plant in the family Euphorbiaceae and is endemic to the Norseman district of Western Australia. It is an spreading, rounded, monoecious or dioeceous shrub or small tree, with linear to narrowly oblong leaves and female flowers arranged singly, or with two to five male flowers, or a single female flower surrounded by up to four male flowers.

<i>Ricinocarpos trachyphyllus</i> Species of shrub

Ricinocarpos trachyphyllus is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Australia. It is an monoecious or dioecious shrub with linear leaves and white flowers, arranged either singly, or with 3 male flowers, or one female flower surrounded by three male flowers.

Ricinocarpos trichophyllus is a species of flowering plant in the family Euphorbiaceae and is endemic to north-western Australia. It is an open, slender, monoecious shrub with linear to narrowly oblong leaves, and flowers in a raceme with one female flower surrounded by two or three male flowers.

References

  1. ↑ "Ricinocarpos verrucosus". Australian Plant Census. Retrieved 20 November 2023.
  2. 1 2 3 4 Halford, David A.; Henderson, Rodney J.F. (2007). "A taxonomic revision of Ricinocarpos Desf. (Euphorbiaceae: Ricinocarpeae, Ricinocarpinae)". Austrobaileya. 7 (3): 441–443. Retrieved 20 November 2023.
  3. ↑ "Ricinocarpos verrucosus". Australian Plant Name Index. Retrieved 20 November 2023.
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