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Asparagoideae
Asparagoideae is a subfamily of monocot flowering plants in the family Asparagaceae, order Asparagales, according to the APG III system of 2009. The subfamily name is derived from the generic name of the type genus, ''Asparagus''. The group has previously been treated as a separate family Asparagaceae ''sensu stricto''. The subfamily contains only two genera, ''Asparagus'' with some 160–290 species, and ''Hemiphylacus'' with five species. (''Hemiphylacus'' used to be placed in the Asphodeloideae/Asphodelaceae.) They are distributed in Europe, Africa and Asia, with a few species in Australasia and Mexico. ''Asparagus'' has small paper-like (scarious) leaves at the base of leaf-like branches which act as the photosynthetic organs (phylloclade Phylloclades and cladodes are flattened, photosynthetic shoots, which are usually considered to be modified branches. The two terms are used either differently or interchangeably by different authors. ''Phyllocladus'', a genus of conif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagales
Asparagales (asparagoid lilies) is an order (biology), order of plants in modern classification systems such as the Angiosperm Phylogeny Group (APG) and the Angiosperm Phylogeny Web. The order takes its name from the type (biology), type family (biology), family Asparagaceae and is placed in the monocots amongst the lilioid monocots. The order has only recently been recognized in classification systems. It was first put forward by herbert Huber (botanist), Huber in 1977 and later taken up in the Dahlgren system of 1985 and then the APG in 1998, 2003 and 2009. Before this, many of its families were assigned to the old order Liliales, a very large order containing almost all monocots with colorful tepals and lacking starch in their endosperm. DNA sequencing, DNA sequence analysis indicated that many of the taxa previously included in Liliales should actually be redistributed over three orders, Liliales, Asparagales, and Dioscoreales. The boundaries of the Asparagales and of its fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagaceae
Asparagaceae, known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, ''Asparagus officinalis''. Those who live in the temperate climates may be surprised to learn that this family includes both common garden plants as well as common houseplants. The garden plants include asparagus, yucca, bluebell, and hosta, and the houseplants include snake plant, corn cane, spider plant and plumosus fern. Taxonomy In earlier classification systems, the species involved were often treated as belonging to the family Liliaceae. The APG II system of 2003 allowed two options as to the circumscription of the family: either Asparagaceae ''sensu lato'' ("in the wider sense") combining seven previously recognized families, or Asparagaceae ''sensu stricto'' ("in the strict sense") consisting of very few genera (notably ''Asparagus'', also ''Hemiphylacus''), but nevertheless totalling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagoideae
Asparagoideae is a subfamily of monocot flowering plants in the family Asparagaceae, order Asparagales, according to the APG III system of 2009. The subfamily name is derived from the generic name of the type genus, ''Asparagus''. The group has previously been treated as a separate family Asparagaceae ''sensu stricto''. The subfamily contains only two genera, ''Asparagus'' with some 160–290 species, and ''Hemiphylacus'' with five species. (''Hemiphylacus'' used to be placed in the Asphodeloideae/Asphodelaceae.) They are distributed in Europe, Africa and Asia, with a few species in Australasia and Mexico. ''Asparagus'' has small paper-like (scarious) leaves at the base of leaf-like branches which act as the photosynthetic organs (phylloclade Phylloclades and cladodes are flattened, photosynthetic shoots, which are usually considered to be modified branches. The two terms are used either differently or interchangeably by different authors. ''Phyllocladus'', a genus of conif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiphylacus
''Hemiphylacus'' is a genus of flowering plants endemic to Mexico. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Asparagoideae (formerly the family Asparagaceae ''sensu stricto''). Species:Hernández Sandoval, L. 1995. Taxonomic study of the Mexican genus ''Hemiphylacus'' (Hyacinthaceae). Systematic Botany 20(4): 546–554. #''Hemiphylacus alatostylus'' L.Hern. - Guanajuto, Querétaro, San Luis Potosí #''Hemiphylacus hintoniorum'' L.Hern. - Nuevo León #''Hemiphylacus latifolius'' S.Watson - Coahuila #''Hemiphylacus mahindae'' L.Hern. - Oaxaca, Puebla #''Hemiphylacus novogalicianus ''Hemiphylacus'' is a genus of flowering plants endemic to Mexico. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Asparagoideae (formerly the family Asparagaceae '' sensu stricto''). Species:Hernández ...'' L.Hern. - Aguascalientes References Asparagaceae genera Asparagoideae Endemic flora of Mexico [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APG III System
The APG III system of flowering plant classification is the third version of a modern, mostly molecular-based, system of plant taxonomy being developed by the Angiosperm Phylogeny Group (APG). Published in 2009, it was superseded in 2016 by a further revision, the APG IV system. Along with the publication outlining the new system, there were two accompanying publications in the same issue of the Botanical Journal of the Linnean Society: * The first, by Chase & Reveal, was a formal phylogenetic classification of all land plants (embryophytes), compatible with the APG III classification. As the APG have chosen to eschew ranks above order, this paper was meant to fit the system into the existing Linnaean hierarchy for those that prefer such a classification. The result was that all land plants were placed in the class Equisetopsida, which was then divided into 16 subclasses and a multitude of superorders. * The second, by Haston ''et al.'', was a linear sequence of families followi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagus (genus)
''Asparagus'' is a genus of flowering plants in the family Asparagaceae, subfamily Asparagoideae. It comprises up to 300 species. Most are evergreen long-lived perennial plants growing from the understory as lianas, bushes or climbing plants. The best-known species is the edible ''Asparagus officinalis'', commonly referred to as just ''asparagus''. Some other members of the genus, such as ''Asparagus densiflorus'', are grown as ornamental plants. Ecology The genus includes a variety of living forms, occurring from rainforest to semi-desert habitats; many are climbing plants. Most are dispersed by birds. Ornamental species such as '' Asparagus plumosus'', ''Asparagus aethiopicus'', ''Asparagus setaceus'', and '' Asparagus virgatus'' are finely branched and are misleadingly known as "asparagus fern". In the Macaronesian Islands, several species (such as '' Asparagus umbellatus'' and '' Asparagus scoparius'') grow in moist laurel forest habitat, and preserve the original form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphodeloideae
Asphodeloideae is a subfamily of the monocot family Asphodelaceae in the order Asparagales. It has previously been treated as a separate family, Asphodelaceae ''sensu stricto''. The family Asphodelaceae has now been proposed to be a nomen conservandum, and the proposal has been recommended for ratification in 2017. In that case, Asphodelaceae will have priority over Xanthorrhoeaceae. This is reflected in the APG IV family lists. The subfamily name is derived from the generic name of the type genus, ''Asphodelus''. Members of group are native to Africa, central and western Europe, the Mediterranean basin, Central Asia and Australia, with one genus ('' Bulbinella'') having some of its species in New Zealand. The greatest diversity occurs in South Africa. The genera ''Aloe'', ''Asphodelus'', and ''Kniphofia'' are perhaps best known from their use in horticulture as ornamental plants. Description The Asphodeloideae are distinguished by a general presence of anthraquinones, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylloclade
Phylloclades and cladodes are flattened, photosynthetic shoots, which are usually considered to be modified branches. The two terms are used either differently or interchangeably by different authors. ''Phyllocladus'', a genus of conifer, is named after these structures. Phylloclades/cladodes have been identified in fossils dating from as early as the Permian. Definition and morphology The term "phylloclade" is from the New Latin ''phyllocladium'', itself derived from Greek ''phyllo'', leaf, and ''klados'', branch. Definitions of the terms "phylloclade" and "cladode" vary. All agree that they are flattened structures that are photosynthetic and resemble leaf-like branches. In one definition, phylloclades are a subset of cladodes, namely those that greatly resemble or perform the function of leaves, as in Butcher's broom (''Ruscus aculeatus'') as well as ''Phyllanthus'' and some ''Asparagus'' species. By an alternative definition, cladodes are distinguished by their limited gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different, but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific (Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colonies) and New Zealand. Australasia found continued geopolitical attention in the earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asia
Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area of , about 30% of Earth's total land area and 8.7% of Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilizations. Its 4.7 billion people constitute roughly 60% of the world's population. In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. It is somewhat arbitrary and has moved since its first conception in classical antiquity. The division of Eurasia into two continents reflects East–West cultural, linguistic, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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