|
Hydrocotyle Phoenix
''Hydrocotyle phoenix'' is a species of annual pennywort and is commonly called fire pennywort. It is only known to grow in south-west Australia, specifically in fire prone habitats; it is unique in this regard as it is the only species of ''Hydrocotyle'' known to have a fire adapted life-history. The specific epiphet "phoenix" references this fire adapted life history as in Greek mythology, a phoenix experiences rebirth by rising from ashes, much like how this plant rises from the ashes after a wildfire. Description ''Hydrocotyle phoenix'' is a low growing annual herb which grows tall and up to wide with a sprawling habit. The leaves grow from a basal rosette. The leaves are palmately lobed and 5-20 mm long by 7-26 mm wide and covered in small hairs. The flowers are borne in a compact umbel with about 10-20 flowers. The flowers themselves are small, only 4-6 mm wide, and white. The flowers have only 5 white petals and lack a calyx. The fruits are schizocarps about 1 mm in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocotyle Phoenix
''Hydrocotyle phoenix'' is a species of annual pennywort and is commonly called fire pennywort. It is only known to grow in south-west Australia, specifically in fire prone habitats; it is unique in this regard as it is the only species of ''Hydrocotyle'' known to have a fire adapted life-history. The specific epiphet "phoenix" references this fire adapted life history as in Greek mythology, a phoenix experiences rebirth by rising from ashes, much like how this plant rises from the ashes after a wildfire. Description ''Hydrocotyle phoenix'' is a low growing annual herb which grows tall and up to wide with a sprawling habit. The leaves grow from a basal rosette. The leaves are palmately lobed and 5-20 mm long by 7-26 mm wide and covered in small hairs. The flowers are borne in a compact umbel with about 10-20 flowers. The flowers themselves are small, only 4-6 mm wide, and white. The flowers have only 5 white petals and lack a calyx. The fruits are schizocarps about 1 mm in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocotyle
''Hydrocotyle'', also called floating pennywort, water pennywort, Indian pennywort, dollar weed, marsh penny, thick-leaved pennywort and even white rot is a genus of prostrate, perennial aquatic or semi-aquatic plants formerly classified in the family Apiaceae, now in the family Araliaceae. Description Water pennyworts, ''Hydrocotyles'', are very common. They have long creeping stems that often form dense mats, often in and near ponds, lakes, rivers, and marshes, and some species in coastal areas by the sea. ;Leaves: Simple, with small leafy outgrowth at the base, kidney shaped to round. Leaf edges are scalloped. The leaf surfaces of ''Hydrocotyle'' are prime grounds for oviposition of many butterfly species, such as ''Anartia fatima''. ;Flowers: Flower clusters are simple and flat-topped or rounded. Involucral bracts at the base of each flower. Indistinct sepals. ;Fruits and reproduction: Elliptical to round with thin ridges and no oil tubes (vitta) which is characteristic in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germination
Germination is the process by which an organism grows from a seed or spore. The term is applied to the sprouting of a seedling from a seed of an angiosperm or gymnosperm, the growth of a sporeling from a spore, such as the spores of fungi, ferns, bacteria, and the growth of the pollen tube from the pollen grain of a seed plant. Seed plants Germination is usually the growth of a plant contained within a seed; it results in the formation of the seedling. It is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule. The seed of a vascular plant is a small package produced in a fruit or cone after the union of male and female reproductive cells. All fully developed seeds contain an embryo and, in most plant species some store of food reserves, wrapped in a seed coat. Some plants produce varying numbers of seeds that lack embryos; these are empty seeds which never germinate. Dormant seeds are viable seeds that do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Described In 2017
Plants are predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyta, and consists of the green algae and Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green color. Some plants are parasitic or mycotrophic and have lost the ability t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D'Entrecasteaux National Park
D'Entrecasteaux National Park is a national park in Western Australia, south of Perth. The park is named after the French Admiral Bruni D'Entrecasteaux who was the first European to sight the area and name Point D'Entrecasteaux in 1792. The park received 168,497 visitors through 2008–2009. Description The park stretches from Black Point in the west to Long Point in the east and extends inland as far as . Black Point is made of basalt columns from a lava flow that occurred 135 million years ago. An interesting feature in the park is Yeagarup dune, a mobile long sand dune found to the west of Lake Jasper. The park contains a great variety of scenery, including beaches, sand-dunes, coastal cliffs, coastal heath and pockets of karri forest. Rivers such as the Warren, the Donnelly and the Shannon flow through the park and discharge into the waters off-shore. Important large scale wetlands, known as the Blackwater, and lakes such as Lake Jasper and Lake Yeagarup are fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocotyle Geraniifolia
''Hydrocotyle geraniifolia'', commonly known as the forest pennywort, is a species of ''Hydrocotyle'' found in Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma .... The habitat is moist forest floors often on the sides of hills. References geraniifolia Flora of New South Wales Flora of Queensland Flora of Victoria (state) Plants described in 1855 {{Araliaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocotyle Blepharocarpa
''Hydrocotyle'', also called floating pennywort, water pennywort, Indian pennywort, dollar weed, marsh penny, thick-leaved pennywort and even white rot is a genus of prostrate, perennial aquatic or semi-aquatic plants formerly classified in the family Apiaceae, now in the family Araliaceae. Description Water pennyworts, ''Hydrocotyles'', are very common. They have long creeping stems that often form dense mats, often in and near ponds, lakes, rivers, and marshes, and some species in coastal areas by the sea. ;Leaves: Simple, with small leafy outgrowth at the base, kidney shaped to round. Leaf edges are scalloped. The leaf surfaces of ''Hydrocotyle'' are prime grounds for oviposition of many butterfly species, such as ''Anartia fatima''. ;Flowers: Flower clusters are simple and flat-topped or rounded. Involucral bracts at the base of each flower. Indistinct sepals. ;Fruits and reproduction: Elliptical to round with thin ridges and no oil tubes (vitta) which is characteristic in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocotyle Hispidula
''Hydrocotyle'', also called floating pennywort, water pennywort, Indian pennywort, dollar weed, marsh penny, thick-leaved pennywort and even white rot is a genus of prostrate, perennial aquatic or semi-aquatic plants formerly classified in the family Apiaceae, now in the family Araliaceae. Description Water pennyworts, ''Hydrocotyles'', are very common. They have long creeping stems that often form dense mats, often in and near ponds, lakes, rivers, and marshes, and some species in coastal areas by the sea. ;Leaves: Simple, with small leafy outgrowth at the base, kidney shaped to round. Leaf edges are scalloped. The leaf surfaces of ''Hydrocotyle'' are prime grounds for oviposition of many butterfly species, such as ''Anartia fatima''. ;Flowers: Flower clusters are simple and flat-topped or rounded. Involucral bracts at the base of each flower. Indistinct sepals. ;Fruits and reproduction: Elliptical to round with thin ridges and no oil tubes (vitta) which is characteristic in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schizocarp
A schizocarp is a dry fruit that, when mature, splits up into mericarps. There are different definitions: * Any dry fruit composed of multiple carpels that separate. : Under this definition the mericarps can contain one or more seeds (the mericarps of '' Abutilon'' have two or more seeds) and each mericarp can be either: :* Indehiscent (remaining closed), such as in the carrot and other Umbelliferae or in members of the genus ''Malva'', or :* Dehiscent (splitting open to release the seed), for example members of the genus '' Geranium''. This is similar to what happens with a capsule, but with an extra stage. (In ''Abutilon'', the mericarp is sometimes only partially dehiscent and does not release the seed.) * Any fruit that separates into indehiscent one-seeded segments, such as a loment, ''Malva ''Malva'' is a genus of herbaceous annual, biennial, and perennial plants in the family Malvaceae. It is one of several closely related genera in the family to bear the co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Seed Bank
The soil seed bank is the natural storage of seeds, often dormant, within the soil of most ecosystems. The study of soil seed banks started in 1859 when Charles Darwin observed the emergence of seedlings using soil samples from the bottom of a lake. The first scientific paper on the subject was published in 1882 and reported on the occurrence of seeds at different soil depths. Weed seed banks have been studied intensely in agricultural science because of their important economic impacts; other fields interested in soil seed banks include forest regeneration and restoration ecology. Background Many taxa have been classified according to the longevity of their seeds in the soil seed bank. Seeds of ''transient'' species remain viable in the soil seed bank only to the next opportunity to germinate, while seeds of ''persistent'' species can survive longer than the next opportunity—often much longer than one year. Species with seeds that remain viable in the soil longer than f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telopea (journal)
''Telopea'' is a fully open-access, online, peer-reviewed scientific journal that rapidly publishes original research on plant systematics, with broad content that covers Australia and the Asia-Pacific region. The journal was established in 1975 and is published by the National Herbarium of New South Wales, Royal Botanic Gardens & Domain Trust. As from Volume 9, part 1, 2000, full text of papers is available electronically in pdf format. It is named for the genus ''Telopea'', commonly known as waratah Waratah (''Telopea'') is an Australian-endemic genus of five species of large shrubs or small trees, native to the southeastern parts of Australia (New South Wales, Victoria, and Tasmania). The best-known species in this genus is ''Telopea speci ...s. The forerunner of ''Telopea'' was ''Contributions from the New South Wales National Herbarium'' which was first published in July 1939 as Volume 1(1). Publication was suspended between 1941 and resumed in 1948 with the publication of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
