Ricinocarpos ruminatus | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malpighiales |
Family: | Euphorbiaceae |
Genus: | Ricinocarpos |
Species: | R. ruminatus |
Binomial name | |
Ricinocarpos ruminatus | |
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 ruminatus is an erect, monoecious shrub that typically grows to height of up to 2 m (6 ft 7 in), its young branchlets glabrous. The leaves are linear, 20–35 mm (0.79–1.38 in) long and 0.7–1.3 mm (0.028–0.051 in) wide on a glabrous petiole 1.5–2.0 mm (0.059–0.079 in) long. The upper surface of the leaves is smooth and glabrous and the lower surface is covered with soft, white hairs. The flowers are arranged on the ends of branches in groups of 2 to 5 male flowers, or by a single female flower surrounded by up to 4 male flowers. Male flowers are on a slender pedicel 12–40 mm (0.47–1.57 in) long, the 5 sepals joined at the base, hairy on the inner surface, the sepal lobes egg-shaped, 1.3–1.8 mm (0.051–0.071 in) long. The 5 petals are white, glabrous and narrowly egg-shaped with the narrower end towards the base, 10–13 mm (0.39–0.51 in) long and 3.0–3.7 mm (0.12–0.15 in) wide. Each male flower has 20–30 stamens. Flowering has been observed in August and December, and the fruit is a more or less spherical capsule 14–16 mm (0.55–0.63 in) in diameter. [2]
Ricinocarpos ruminatus was first formally described in 2007 by David Halford and Rodney Henderson in the journal Austrobaileya from specimens collected by Anthony Bean near Rolleston in 1998. [2] [3] The specific epithet (ruminatus) means "penetrated by irregular canals", referring to the texture of the Elaiosome on the seeds. [2]
This species grows in open forest and heath. It is only known from the Expedition Range near Rolleston. [2]
Ricinocarpos is a genus of evergreen flowering plants in the family Euphorbiaceae and is endemic to Australia. Plants in the genus Ricinocarpos are monoecious shrubs with leaves arranged alternately along the branches, the edges curved downwards or rolled under. Male flowers are arranged singly or in racemes at the ends of branchlets, with four to six sepals that are fused at the base. There are four to six petals that are longer than the sepals, with many stamens fused to form a central column. Female flowers are arranged singly and are similar to male flowers but with three styles fused at the base and with a deeply branched tip. The fruit is a capsule containing seeds with an elaiosome.
Ricinocarpos bowmanii, commonly known as western wedding bush or Bowman jasmine, is a species of flowering plant in the family Euphorbiaceae and is endemic to New South Wales. It is usually a monoecious shrub with linear to oblong leaves and three to six male flowers around each female flower.
Ricinocarpos brevis is a species of flowering plant in the family Euphorbiaceae and is endemic to inland Western Australia. It is a monoecious, densely-branched shrub with narrowly oblong leaves and male and female flowers arranged singly or in small groups.
Ricinocarpos caniana is a species of flowering plant in the family Euphorbiaceae and is endemic to a restricted area of south-eastern Queensland. It is an erect monoecious or dioecious shrub with linear leaves and white flowers, arranged either singly, with two to five male flowers, or a single female flower surrounded by up to four male flowers.
Ricinocarpos crispatus is a species of flowering plant in the family Euphorbiaceae and is endemic to south-western Queensland. It is a monoecious or dioecious shrub with linear leaves and white flowers, arranged either singly, with two to four male flowers, or a single female flower surrounded by one or two male flowers.
Ricinocarpos cyanescens is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is a compact, monoecious shrub with narrowly oblong leaves and male and female flowers arranged singly or in small groups.
Ricinocarpos glaucus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect, monoecious or dioecious shrub with linear or narrowly oblong leaves and male and female flowers arranged singly or in small groups.
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.
Ricinocarpos ledifolius is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Queensland. It is a monoecious or dioecious shrub or small tree with linear leaves and white flowers, arranged either singly, or with two or three female or two to six male flowers, or a single female flower surrounded by two male flowers.
Ricinocarpos linearifolius is a species of flowering plant in the family Euphorbiaceae and is endemic to eastern Australia. It is a monoecious or dioecious shrub with hairy young branchlets, linear leaves and white flowers, arranged either singly, with two to four male flowers, or a single female flower surrounded by up to three male flowers.
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.
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.
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.
Pseudanthus ligulatus is a species of flowering plant in the family Picrodendraceae and is endemic to northern Queensland. It is a monoecious shrub with simple, lance-shaped or linear to narrowly oblong leaves and creamy white male and pale green female flowers arranged singly in upper leaf axils, but appearing clustered on the ends of branches.
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.
Stachystemon intricatus is a species of flowering plant in the family Picrodendraceae and is endemic to the south-west of Western Australia. It is a compact, densely-branched, monoecious shrub with crowded, elliptic or egg-shaped leaves and small, cup-shaped white flowers arranged singly in upper leaf axils.
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.
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.