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Xeronema
''Xeronema'' is a genus of flowering plants containing two species, ''Xeronema moorei'' from New Caledonia, and ''Xeronema callistemon'' (the Poor Knights lily) from the Poor Knights Islands and Taranga Island in New Zealand. The plants are herbaceous monocots, spreading by rhizomes, and have large flowers set on terminal spikes, with stamens towering above the flowers. The type species ''X. moorei'' is found in the mountains of New Caledonia. The Poor Knights lily (''X. callistemon'') is endemic to the Poor Knights Islands and Taranga Island in the north of New Zealand. It was discovered in 1924. The Poor Knights lily has large bottlebrush flower clusters that grow horizontally. The clusters begin growing vertically and then bend sideways. Bright red flowers grow upward from the stalk, with bright orange pollen. The plant can reach a height of one metre tall and across. The APG IV system, of 2016, accepts this genus as constituting its own family Xeronemataceae. It places t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xeronemataceae
''Xeronema'' is a genus of flowering plants containing two species, '' Xeronema moorei'' from New Caledonia, and '' Xeronema callistemon'' (the Poor Knights lily) from the Poor Knights Islands and Taranga Island in New Zealand. The plants are herbaceous monocots, spreading by rhizomes, and have large flowers set on terminal spikes, with stamens towering above the flowers. The type species ''X. moorei'' is found in the mountains of New Caledonia. The Poor Knights lily (''X. callistemon'') is endemic to the Poor Knights Islands and Taranga Island in the north of New Zealand. It was discovered in 1924. The Poor Knights lily has large bottlebrush flower clusters that grow horizontally. The clusters begin growing vertically and then bend sideways. Bright red flowers grow upward from the stalk, with bright orange pollen. The plant can reach a height of one metre tall and across. The APG IV system, of 2016, accepts this genus as constituting its own family Xeronemataceae. It place ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xeronema Moorei
''Xeronema'' is a genus of flowering plants containing two species, '' Xeronema moorei'' from New Caledonia, and '' Xeronema callistemon'' (the Poor Knights lily) from the Poor Knights Islands and Taranga Island in New Zealand. The plants are herbaceous monocots, spreading by rhizomes, and have large flowers set on terminal spikes, with stamens towering above the flowers. The type species ''X. moorei'' is found in the mountains of New Caledonia. The Poor Knights lily (''X. callistemon'') is endemic to the Poor Knights Islands and Taranga Island in the north of New Zealand. It was discovered in 1924. The Poor Knights lily has large bottlebrush flower clusters that grow horizontally. The clusters begin growing vertically and then bend sideways. Bright red flowers grow upward from the stalk, with bright orange pollen. The plant can reach a height of one metre tall and across. The APG IV system, of 2016, accepts this genus as constituting its own family Xeronemataceae. It places ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xeronema Callistemon
''Xeronema callistemon'' is a species of flowering plant endemic to the Poor Knights Islands and Taranga Island in the north of New Zealand.Xeronema callistemon f. callistemon /ref> It was discovered in 1924 and has a common name Poor Knights lily. The plant is listed as vulnerable in the 1997 IUCN Red List of Plants,1997 IUCN red list of threatened plants p.746 but as of October 2010 is not listed in the |
Asparagales Genera
Asparagales (asparagoid lilies) are a diverse order of flowering plants in the monocots. Under the APG IV system of flowering plant classification, Asparagales are the largest order of monocots with 14 families, 1,122 genera, and about 36,000 species, with members as varied as asparagus, orchids, yuccas, irises, onions, garlic, leeks, and other Alliums, daffodils, snowdrops, amaryllis, agaves, butcher's broom, Agapanthus, Solomon's seal, hyacinths, bluebells, spider plants, grasstrees, aloe, freesias, gladioli, crocuses, and saffron. Most species of Asparagales are herbaceous perennials, although some are climbers and some are trees or shrubs. The order also contains many geophytes (bulbs, corms, and various kinds of tuber). The leaves of almost all species form a tight rosette, either at the base of the plant or at the end of the stem, but occasionally along the stem. The flowers are not particularly distinctive, being 'lily type', with six tepals and up to six stamina. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagales
Asparagales (asparagoid lilies) are a diverse order of flowering plants in the monocots. Under the APG IV system of flowering plant classification, Asparagales are the largest order of monocots with 14 families, 1,122 genera, and about 36,000 species, with members as varied as asparagus, orchids, yuccas, irises, onions, garlic, leeks, and other Alliums, daffodils, snowdrops, amaryllis, agaves, butcher's broom, Agapanthus, Solomon's seal, hyacinths, bluebells, spider plants, grasstrees, aloe, freesias, gladioli, crocuses, and saffron. Most species of Asparagales are herbaceous perennials, although some are climbers and some are trees or shrubs. The order also contains many geophytes (bulbs, corms, and various kinds of tuber). The leaves of almost all species form a tight rosette, either at the base of the plant or at the end of the stem, but occasionally along the stem. The flowers are not particularly distinctive, being 'lily type', with six tepals and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poor Knights Islands
The Poor Knights Islands (Māori: ''Tawhiti Rahi)'' are a group of islands off the east coast of the Northland Region of the North Island of New Zealand. They lie to the northeast of Whangārei, and offshore halfway between Bream Head and Cape Brett. Uninhabited since the 1820s, they are a nature reserve and popular underwater diving spot, with boat tours typically departing from Tutukaka. The Poor Knights Islands Marine Reserve surrounds the island. Beaglehole (1955) comments that the origin of the island name is not clear, and speculates that the name could be related to the Poor Knights of Windsor, or that the islands were named for their resemblance to Poor Knight's Pudding, a bread-based dish topped with egg and fried, popular at the time of discovery by Europeans. Description The chain consists of two large islands (Tawhiti Rahi, the larger at , and Aorangi () to the south), and several smaller islands. Aorangaia and Archway Island lie to the southwest of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphodelaceae
Asphodelaceae is a family of flowering plants in the order Asparagales. Such a family has been recognized by most taxonomists, but the circumscription has varied widely. In its current circumscription in the APG IV system, it includes about 40 genera and 900 known species. The type genus is '' Asphodelus''. The family has a wide, but scattered, distribution throughout the tropics and temperate zones; for example, ''Xanthorrhoea'' is endemic to Australia, while the '' Aloes'' are unique to Africa and parts of the Arabian Peninsula. Many of the family's genera are cultivated as ornamentals, with some being highly collectible and sought-after, such as ''Haworthia'' and '' Gasteria'', as well as their intergeneric hybrids with ''Aloe'' ('' x Gasteraloe'', x ''Gastorthia'', x ''Haworthaloe'', etc.), while a few are grown commercially for cut flowers. Two species of ''Aloe'', '' A. vera'' and '' A. maculata'', are grown for their leaf sap, which contains digestive enzymes, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APG IV System
The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was published in 2016, seven years after its predecessor the APG III system was published in 2009, and 18 years after the first APG system was published in 1998. In 2009, a linear arrangement of the system was published separately; the APG IV paper includes such an arrangement, cross-referenced to the 2009 one. Compared to the APG III system, the APG IV system recognizes five new orders ( Boraginales, Dilleniales, Icacinales, Metteniusales and Vahliales), along with some new families, making a total of 64 angiosperm orders and 416 families. In general, the authors describe their philosophy as "conservative", based on making changes from APG III only where "a well-supported need" has been demonstrated. This has sometimes resulted in placements th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark Wayne Chase
Mark Wayne Chase (born 1951) is a US-born British botanist. He is noted for work in plant classification and evolution, and one of the instigators of the Angiosperm Phylogeny Group-classification for flowering plants which is partly based on DNA studies. In particular he has researched orchids, and currently investigates ploidy and hybridization in ''Nicotiana''. In 1984, he received 'The George H.M. Lawrence Memorial Award', in the amount of $2,000, presented by the Hunt Institute for Botanical Documentation, Carnegie Mellon University and presented at the annual banquet of the Botanical Society of America. In 1998 he shared the Linnean Medal with Colin Patterson. In 2008 he was one of thirteen recipients of the Darwin-Wallace Medal, which was given every 50 years by the Linnean Society of London. He was the Keeper of the Jodrell Laboratory; he is now retired but still an honorary research associate at the Royal Botanic Gardens, Kew. He is a Fellow of the Royal Society. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen
Pollen is a powdery substance produced by most types of flowers of seed plants for the purpose of sexual reproduction. It consists of pollen grains (highly reduced Gametophyte#Heterospory, microgametophytes), which produce male gametes (sperm cells). Pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of flowering plants, or from the male Conifer cone, cone to the female cone of gymnosperms. If pollen lands on a compatible pistil or female cone, it Germination, germinates, producing a pollen tube that transfers the sperm to the ovule containing the female gametophyte. Individual pollen grains are small enough to require magnification to see detail. The study of pollen is called palynology and is highly useful in paleoecology, paleontology, archaeology, and Forensic science, forensics. Pollen in plants is used for transferring Ploidy#Haploid and monoploid, haploid male genetic ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of New Zealand
This article relates to the flora of New Zealand, especially indigenous strains. New Zealand's geographical isolation has meant the country has developed a unique variety of native flora. However, human migration has led to the importation of many other plants (generally referred to as 'exotics' in New Zealand) as well as widespread damage to the indigenous flora, especially after the advent of European colonisation, due to the combined efforts of farmers and specialised societies dedicated to importing European plants & animals. Characteristics Indigenous New Zealand flora generally has the following characteristics: * the majority are evergreen. * few annual herbs. * few cold-tolerant trees. * majority are dispersed by birds. * very few have defences against mammalian browsers. * few nitrogen fixing plants. * few fire-adapted species. * many dioecious species. * flowers are typically small and white. * many plants have divaricating growth forms. * many plants have evolv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridaceae
Iridaceae () is a family of plants in order Asparagales, taking its name from the Iris (plant), irises. It has a nearly global distribution, with 69 accepted genera with a total of about 2500 species. It includes a number of economically important cultivated plants, such as species of ''Freesia'', ''Gladiolus'', and ''Crocus'', as well as the crop saffron. Members of this family are perennial plants, with a bulb, corm or rhizome. The plants grow erect, and have leaves that are generally grass-like, with a sharp central fold. Some examples of members of this family are the blue flag and yellow flag. Etymology The family name comes from the genus ''Iris (plant), Iris'', the family's largest and best-known genus in Europe. This genus dates from 1753, when it was coined by Swedish botanist, Carl Linnaeus. Its name derives from the Greek goddess, Iris, who carried messages from Mount Olympus, Olympus to earth along a rainbow, whose colors were seen by Linnaeus in the multi-hued petal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
