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Verticordia Sect. Platandra
''Verticordia'' sect. ''Platandra'' is one of eleven sections in the subgenus ''Verticordia''. It includes two species of plants in the genus '' Verticordia''. Plants in this section resemble '' V. pritzelii'' in section ''Catocalypta'' but differ in they do not have tufts of hair on their sepals. The anthers are flattened and the hairs on the style are forked. When Alex George reviewed the genus in 1991 he formally described this section, publishing the description in the journal '' Nuytsia''. When George published his review of the genus in 1991, there was only one species in the section, '' V. gracilis'' but in 2010 he described '' V. setacea'' and included that species in section ''Platandra''. The name ''Platandra'' is derived from the Ancient Greek ''platy-'' meaning "flattened" and ''-andros'' meaning "male" referring to the flattened anthers. The type species for this section is ''Verticordia gracilis ''Verticordia gracilis'' is a flowering plant in the myrt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alex George (botanist)
Alexander Segger George (born 4 April 1939) is a Western Australian botanist. He is the authority on the plant genera ''Banksia'' and ''Dryandra''. The "bizarre" Restionaceae genus '' Alexgeorgea'' was named in his honour in 1976. Early life Alex Segger George was born in Western Australia on 4 April 1939. Career George joined the Western Australian Herbarium as a laboratory assistant at the age of twenty in 1959. He worked under Charles Gardner for a year before the latter's retirement, and partly credits him with rekindling an interest in banksias. In 1963 he graduated with a Bachelor of Arts from the University of Western Australia, and the following year added a botany major. Continuing at the Western Australian Herbarium as a botanist, in 1968 he was seconded as Australian Botanical Liaison Officer at the Royal Botanic Gardens in London. George also has an interest in history, especially historical biography of naturalists in Western Australia. He has published a number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ 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 and are attached to the filament either at the base or in the middle area of the anther. The sterile tissue between the lobes is called the 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 stamens in a flower are collectively called the androecium. The androecium can consist of as few as one-half stamen (i.e. a single locule) as in ''Canna (plant), Canna'' species or as many as 3,482 stamens which have been counted in the saguaro (''Carnegiea gigantea'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koine. Dia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Setacea
''Verticordia setacea'' is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with small leaves and deep pink flowers with short styles in late spring. Description ''Verticordia setacea'' is a shrub which usually grows to a height of up to . The leaves are more or less oblong in shape, semi-circular to triangular in cross-section and long with a rounded end. The flowers are arranged in open spike-like or corymb-like groups near the ends of the branches, each flower on a spreading stalk long. The floral cup is top-shaped, long, rough, partly hairy and swollen near the upper end. The sepals are long, spreading, deep pink, hairy on the upper surface and fringed with long hairs. The petals are a similar colour to the petals, erect, about long, more or less circular in shape with hairs or teeth around the edge. The style is about long, straight and hairy near the tip. Flowering time is in November and Dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Gracilis
''Verticordia gracilis'' is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a low shrub with small leaves and rounded groups of fluffy pale to deep pink flowers in late spring or early summer, following rain. Description ''Verticordia gracilis'' is a shrub which grows to high and wide and which varies in form from open and spindly to bushy. Its leaves are oblong in shape, almost triangular or circular in cross-section, long with a rounded end. The flowers are scented and arranged in rounded, corymb-like groups near the ends of the branches, each flower on an erect stalk long. The floral cup is top-shaped, about long, hairy and slightly warty. The sepals are pale to deep pink, spreading, long, with a hairy margin. The petals are also pink, erect , round and erect with an irregularly toothed edge. The style is curved, long, and has tufts of hairs. Flowering time is from late October to December or January, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuytsia (journal)
''Nuytsia'' is a peer-reviewed scientific journal published by the Western Australian Herbarium. It publishes papers on systematic botany, giving preference to papers related to the flora of Western Australia. Nearly twenty percent of Western Australia's plant taxa have been published in ''Nuytsia''. The journal was established in 1970 and has appeared irregularly since. The editor-in-chief is Kevin Thiele. ''Nuytsia'' is named after the monospecific genus ''Nuytsia'', whose only species is '' Nuytsia floribunda'', the Western Australian Christmas tree. Occasionally, the journal has published special issues, such as an issue in 2007 substantially expanding described species from Western Australia. Publication details The record of the issues published is found at the ''FloraBase ''FloraBase'' is a public access web-based database of the flora of Western Australia. It provides authoritative scientific information on 12,978 taxa, including descriptions, maps, images, conservati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and sle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined by Noël Martin Joseph de Necker in 1790, and derived . Collectively the sepals are called the calyx (plural calyces), the outermost whorl of parts that form a flower. The word ''calyx'' was adopted from the Latin ,Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 not to be confused with 'cup, goblet'. ''Calyx'' is derived from Greek 'bud, calyx, husk, wrapping' ( Sanskrit 'bud'), while is derived from Greek 'cup, goblet', and the words have been used interchangeably in botanical Latin. After flowering, most plants have no more use for the calyx which withers or becomes vestigial. Some plants retain a thorny calyx, either dried or live, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Section (botany)
In botany, a section ( la, sectio) is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections may in turn be divided into subsections.Article 4 in Sections are typically used to help organise very large genera, which may have hundreds of species. A botanist wanting to distinguish groups of species may prefer to create a taxon at the rank of section or series to avoid making new combinations, i.e. many new binomial names for the species involved. Examples: * ''Lilium'' sectio ''Martagon'' Rchb. are the Turks' cap lilies * ''Plagiochila aerea'' Taylor is the type species of ''Plagiochila'' sect. ''Bursatae'' See also * Section (biology) References Section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Sect
:For the clam genus, see ''Verticordia'' (bivalve). ''Verticordia'' is a genus of more than 100 species of plants commonly known as featherflowers, in the myrtle family, Myrtaceae. They range in form from very small shrubs such as '' V. verticordina'' to trees like '' V. cunninghamii'', some spindly, others dense and bushy, but the majority are woody shrubs up to tall. The flowers are variously described as "feathery", "woolly" or "hairy" and are found in most colours except blue. They often appear to be in rounded groups or spikes but in fact are always single, each flower borne on a separate stalk in a leaf axil. Each flower has five sepals and five petals all of a similar size with the sepals often having feathery or hairy lobes. There are usually ten stamens alternating with variously shaped staminodes. The style is simple, usually not extending beyond the petals and often has hairs near the tip. All but two species are found in Southwest Australia, the other two occurring i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Pritzelii
''Verticordia pritzelii'', commonly known as Pritzel's featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a compact, woody shrub with several main stems, small, linear to club-shaped leaves, and rounded groups of deep pink flowers from late spring to mid-summer. Description ''Verticordia pritzelii'' is a shrub which grows to a height of and with several stems at its base. The leaves are linear to club-shaped, semi-circular in cross-section, long with a small point on the end. The flowers are scented and arranged in rounded groups, each flower on a stalk long. The floral cup is hemispherical in shape, about long and there is a swelling beneath each sepal. The sepals are spreading, deep pink but fade to white as they age. They are long, have 4-6 long, long, thin lobes and two hairy appendages. The petals are a similar colour to the sepals, long, erect and more or less round with small teeth on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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