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Grevillea
''Grevillea'' (), commonly known as spider flowers, is a genus of about 360 species of evergreen flowering plants in the family Proteaceae. Plants in the genus ''Grevillea'' are shrubs, rarely trees, with the leaves arranged alternately along the branches, the flowers zygomorphic, arranged in racemes at the ends of branchlets, and the fruit a follicle that splits down one side only, releasing one or two seeds. Description Plants in the genus ''Grevillea'' are shrubs, rarely small trees with simple or compound leaves arranged alternately along the branchlets. The flowers are zygomorphic and typically arranged in pairs along a sometimes branched raceme at the ends of branchlets. The flowers are bisexual, usually with four tepals in a single whorl. There are four stamens and the gynoecium has a single carpel. The fruit is a thin-walled follicle that splits down only one side, releasing one or two seeds before the next growing season. Taxonomy The genus ''Grevillea'' was first f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Grevillea Species
This is a list of ''Grevillea'' species and subspecies accepted by Plants of the World Online and the International Union for Conservation of Nature as of June 2024: Included in this list are the common and scientific names of the species, scientific names of the subspecies, the name of the country, state or territory where the species is distributed, the species' IUCN Red List status, other conservation statuses and an image of the species. Other conservation statuses are at the regional level and include the ''Environment Protection and Biodiversity Conservation Act 1999'' Act (EPBC) List of Threatened Flora of Australia, the Declared Rare and Priority Flora List (DEC) of Western Australia and the Flora and Fauna Guarantee Act 1988 Threatened List (FFG) of Victoria. 384 grevillea species are endemic to Australia, with 241 of these being found in Western Australia and 132 in New South Wales. 10 species are endemic to New Caledonia and 4 species are endemic to Papua New Guinea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea Baileyana
''Grevillea edelfeltii'', commonly known as white oak, is a tree of the family Proteaceae and is native to the rainforests of north-east Queensland in Australia and to Papua New Guinea. Description In its native rainforest habitat, ''Grevillea edelfeltii'' can grow as a tree to 30 m (100 ft) high. Its hard scaly bark is grey. Both adult and juvenile leaves are 6–30 cm (5.2–12 in) long; the juvenile leaves are pinnatifid, that is, divided into five to nine lanceolate (spear-shaped) lobes on each side of the leaf, while the adult leaves are a simple spear-shape (lanceolate) and 1–6 or rarely 10 cm (0.4–4 in) wide. They are a shiny smooth green above with a conspicuous midvein, and covered in rust-coloured fur below. The flowerheads appear in spring and summer (August to December) and are greenish in bud and white on maturity. Taxonomy ''Grevillea edelfeltii'' was first formally described in 1885 by Ferdinand von Mueller in his book ''Descripti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea Glauca
''Grevillea glauca'', commonly known as bushman's clothes peg, cobblers peg tree, beefwood tree, nut wood, nalgo, or kawoj in New Guinea, is a species of flowering plant in the family Proteaceae and is native to Papua New Guinea and north-eastern Queensland. It is an erect, spindly shrub or small tree with narrowly egg-shaped to elliptic leaves, and cylindrical clusters of cream-coloured to greenish-white flowers. Description ''Grevillea glauca'' is an erect, spindly shrub or tree that typically grows to a height of or more. Its leaves are narrowly egg-shaped to elliptic, long and wide and covered on both sides with soft hairs. The flowers are arranged on the ends of branches in cylindrical groups long and are cream-coloured to greenish-white, the pistil long. Flowering mainly occurs from April to August and the fruit is a more or less spherical, glabrous follicle long. Taxonomy ''Grevillea glauca'' was first formally described in 1809 by Joseph Knight in '' On the culti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea Papuana
''Grevillea papuana'' is a tree species in the family Proteaceae. It is endemic to New Guinea. The species was formally described in 1916 by German botanist Ludwig Diels Friedrich Ludwig Emil Diels (24 September 1874 – 30 November 1945) was a German botanist. Diels was born in Hamburg, the son of the classical scholar Hermann Alexander Diels. From 1900 to 1902 he traveled together with Ernst Georg Pritzel thro .... References papuana Flora of New Guinea Plants described in 1916 Endemic flora of New Guinea {{proteaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteaceae
The Proteaceae form a family (biology), family of flowering plants predominantly distributed in the Southern Hemisphere. The family comprises 83 genus, genera with about 1,660 known species. Australia and South Africa have the greatest concentrations of diversity. Together with the Platanaceae (plane trees), Nelumbonaceae (the sacred lotus) and in the recent APG IV system the Sabiaceae, they make up the order Proteales. Well-known Proteaceae genera include ''Protea'', ''Banksia'', ''Embothrium'', ''Grevillea'', ''Hakea'', and ''Macadamia''. Species such as the New South Wales waratah (''Telopea speciosissima''), king protea (''Protea cynaroides''), and various species of ''Banksia'', ''Grevillea'', and ''Leucadendron'' are popular cut flowers. The nuts of ''Macadamia integrifolia'' are widely grown commercially and consumed, as are those of ''Gevuina avellana'' on a smaller scale. Etymology The name Proteaceae was adapted by Robert Brown (botanist, born 1773), Robert Brown from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea Elbertii
''Grevillea elbertii'' is a tree species in the family Proteaceae. It is endemic to Sulawesi in Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, .... It has green flowers which appear in October in the species' native range. The species was first formally described by botanist Hermann Otto Sleumer in '' Blumea'' in 1955. References elbertii Endemic flora of Sulawesi Trees of Sulawesi {{proteaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Francis Greville
Charles Francis Greville PC FRS FRSE FLS FSA (12 May 1749 – 23 April 1809) was a British antiquarian, collector and politician who sat in the House of Commons from 1774 to 1790. Early life Greville was the second son of Francis Greville, 1st Earl of Warwick, and his wife, Elizabeth Hamilton, daughter of Lord Archibald Hamilton. George Greville, 2nd Earl of Warwick, and Robert Fulke Greville were his brothers, and he had four sisters. He was brought up in the family home, Warwick Castle. His father had been created Earl Brooke three years before he was born and in 1759 had successfully petitioned to have the prestigious medieval title of a more senior extinct line of his family, Earl of Warwick, conferred on him as the senior male heir of the family and lieutenant of the county. He was educated at the University of Edinburgh from 1764 to 1767. Art collections ;Classical and renaissance artwork Greville lived most of his adult life on a rigid income of £500 a year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains sporangium, microsporangia. Most commonly, anthers are two-lobed (each lobe is termed a locule) and are attached to the filament either at the base or in the middle area of the anther. The sterile (i.e. nonreproductive) tissue between the lobes is called the Connective (botany), connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The size of anthers differs greatly, from a tiny fraction of a millimeter in ''Wolfia'' spp up to five inches (13 centimeters) in ''Canna iridiflora'' and ''Strelitzia nicolai''. The stamens in a flower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose, Scotland on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gynoecium
Gynoecium (; ; : gynoecia) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl (botany), whorl of a flower; it consists of (one or more) ''#Pistil, pistils'' and is typically surrounded by the pollen-producing plant reproductive morphology, reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the "female" portion of the flower, although rather than directly producing female gametes (i.e. egg cells), the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells. The term gynoecium is also used by botanists to refer to a cluster of archegonia and any associated modified leaves or stems present on a gametophyte shoot in mosses, Marchantiophyta, liverworts, and hornworts. The corresponding terms for the male parts of those plants are clusters of antheridiu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Knight (horticulturist)
Joseph Knight (7 October 1778 – 20 July 1855), gardener to George Hibbert, was one of the first people in England to successfully propagate Proteaceae. He is remembered as the nominal author of a publication that caused one of the biggest controversies of 19th-century English botany. Career Born in Brindle, Lancashire, he became head gardener to George Hibbert, who was an enthusiastic amateur botanist. Hibbert became caught up in the craze for cultivating Proteaceae, and as a result Knight became adept at their cultivation and propagation. He eventually set himself to write a book on their cultivation, which would be published in 1809 under the title ''On the cultivation of the plants belonging to the natural order of Proteeae''. Despite the title, this book contained only 13 pages related to cultivation techniques, but over 100 pages of taxonomic revision. Although not explicitly attributed, this 100 page revision is known to have been contributed by Richard Anthony Salisbury, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
