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Macrophyll
Leaf size of plants can be described using the terms ''megaphyll'', ''macrophyll'', ''mesophyll'', ''microphyll'', ''nanophyll'' and ''leptophyll'' (in descending order) in a classification devised in 1934 by Christen C. Raunkiær and since modified by others. Definitions vary, some referring to length and others to area. Raunkiaer's original definitions were by leaf area, and differed by a factor of nine at each stage. Some authors simplified the system to make it specific to particular climates, and have introduced extra terms including notophyll, ''picophyll'', ''platyphyll'' and ''subleptophyll''. In ecology, microphyll and similar terms based on blade size of the leaf are used to describe a flora, for example, a "microphyll rainforest" is often defined as a forest where the dominant trees have leaves less than 7.5 cm in length. Raunkiaer's work Christen C. Raunkiaer proposed using leaf size as a relatively easy measurement that could be used to compare the adaptation of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christen C
To christen is to perform the religious act of baptism. Christen may also refer to: People Surname * Adolf Christen (1811–1883), court actor, theater director and theater manager * Andreas Christen (born 1989), footballer from Liechtenstein * Björn Christen (born 1980), Swiss ice hockey player * Brian Christen (1926–2000), Canadian cricketer * Claudia Christen (born 1973), Swiss designer * Georges Christen (born 1962), Luxembourgian strongman * Mathias Christen (born 1987), footballer from Liechtenstein * Morgan Christen (born 1961), American judge * Siena Christen, German paralympic athlete * Theophil Friedrich Christen (1879–1920), Swiss scientist Given name * Christen Aagaard (1616–1664), Danish poet * Christen Thorn Aamodt (1770–1836), Norwegian priest * Christen Larsen Arneberg (born 1808), Norwegian politician * Christen Thomsen Barfoed (1815–1899), Danish chemist * Christen Berg (1829–1891), Danish politician and editor * Christen Gran Bøgh (187 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history. Ecology is a branch of biology, and it is not synonymous with environmentalism. Among other things, ecology is the study of: * The abundance, biomass, and distribution of organisms in the context of the environment * Life processes, antifragility, interactions, and adaptations * The movement of materials and energy through living communities * The successional development of ecosystems * Cooperation, competition, and predation within and between species * Patterns of biodiversity and its effect on ecosystem processes Ecology has practical applications in conservation biology, wetland management, natural res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous (ecology), indigenous) native plant, native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora (mythology), Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonard Webb (academic)
Leonard James Webb (28 October 1920 – 25 November 2008) was a widely awarded Australian ecologist and ethnobotanist who was the author or joint-author of over 112 scientific papers throughout the course of his professional career. His pioneering work as Senior Principal Research Scientist alongside Geoff Tracey in the CSIRO Rainforest Ecology Research Unit in the 1950s led to the publication of the first systematic classification of Australian rainforest vegetation in the ''Journal of Ecology'' in 1959. In the early '80s, after decades of ongoing research, Webb and Tracey had accumulated a large corpus of scientific evidence which confirmed that Australian tropical rainforests had evolved from Gondwana over 100 million years ago and were not, as previously believed, relatively recent arrivals from South East Asia. This discovery served to consolidate the scientific basis for a number of major conservation campaigns across Queensland and paved the way for the subsequent succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunnera Manicata
''Gunnera manicata'', known as Brazilian giant-rhubarb or giant rhubarb, is a species of flowering plant in the family Gunneraceae from the coastal Serra do Mar Mountains of Santa Catarina, Parana and Rio Grande do Sul States, Brazil. It is a large, clump-forming herbaceous perennial growing to tall by or more. The leaves of ''G. manicata'' grow to an impressive size. Leaves with diameters well in excess of are commonplace, with a spread of on a mature plant.The largest on record had leaves up to eleven feet (3.3 meters) in width. The underside of the leaf and the whole stalk have spikes on them. In early summer it bears tiny red-green, dimerous flowers in conical branched panicles, followed by small, spherical fruit. However, it is primarily cultivated for its massive leaves. Like most Gunneras, it has a symbiotic relationship with certain blue-green algae which provide nitrogen by fixation. This plant grows best in damp conditions such as near garden ponds, but disli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raphia Regalis
''Raphia regalis'' is a species of flowering plant in the family Arecaceae. It is found in Angola, Cameroon, Republic of the Congo, Gabon, and Nigeria. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References {{Taxonbar, from=Q5463424 regalis Flora of West Tropical Africa Flora of Angola Vulnerable flora of Africa Taxa named by Odoardo Beccari Taxonomy articles created by Polbot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manicaria Saccifera
''Manicaria'' is a palm genus which is found in Trinidad, Central and South America. It contains two recognized species: #'' Manicaria martiana'' Burret – Colombia, northwestern Brazil #'' Manicaria saccifera'' Gaertn. – Central America, Trinidad, Venezuela, Colombia, Ecuador, Peru, northwestern Brazil It has one of the largest known leaves in the plant kingdom (up to 8 metres in length). ''Manicaria'' thrives in swamps or estuarine areas where river meets ocean. In the Tortuguero region of Costa Rica, where ''Manicaria saccifera'' is plentiful, local people know this palm as "Palma Real", or "Royal Palm". Its heavy, large leaves are valued over other palm species as the best material for roof thatching. ''Manicaria saccifera'' is an obligate swamp species, and as most other palms, it thrives in the wet, humid conditions of tropical lowland forests. Myers (1981) states "In the humid environments of the neo-tropics there is an increase in the abundance of understory pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marojejya Darianii
''Marojejya darianii'', the big-leaf palm, is a species of flowering palm tree in the family Arecaceae. It is found only in Madagascar. It is critically endangered, and threatened with extinction due to habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References darianii Endemic flora of Madagascar Critically endangered plants Taxonomy articles created by Polbot {{Areceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannesteijsmannia Altifrons
''Johannesteijsmannia altifrons'' is a species of flowering plant in the palm family. It is native to southern Thailand, Peninsular Malaysia, Borneo, and Sumatra. Flowers A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism ... of this species smell of sour milk. References External links * * altifrons Taxa named by Heinrich Zollinger Taxa named by Heinrich Gustav Reichenbach Taxa named by Harold E. Moore {{palm-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amorphophallus Titanum
''Amorphophallus'' (from Ancient Greek , "without form, misshapen" + ''phallos'', " penis", referring to the shape of the prominent spadix) is a large genus of some 200 tropical and subtropical tuberous herbaceous plants from the ''Arum'' family (Araceae), native to Asia, Africa, Australia and various oceanic islands. A few species are edible as "famine foods" after careful preparation to remove irritating chemicals. The genus includes the Titan arum (''A. titanum'') of Indonesia, which has the largest inflorescence of any plant in the genus, and is also known as the 'corpse flower' for the pungent odour it produces during its flowering period, which can take up through seven years of growth before it occurs. History The oldest systematic record of the plants was in 1692, when Van Rheede tot Drakenstein published descriptions of two plants. The name "''Amorphophallus''" was first mentioned in 1834 by the Dutch botanist Blume.Hetterscheid, W., & Ittenbach, S. (1990). Every ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Amazonica
''Victoria amazonica'' is a species of flowering plant, the second largest of the water lily family Nymphaeaceae. It is the national flower of Guyana. Its native regions are Guyana and tropical South America. Description The ''Victoria amazonica'' has very large leaves, up to in diameter, that float on the water's surface on a submerged stalk, in length, rivaling that of the green anaconda, a snake local to its habitat. It is the second-largest waterlily in the world. ''V. amazonica'' is native to the shallow waters of the Amazon River basin, such as oxbow lakes and bayous. In their native habitat, the flowers first begin to open as the sun starts to set and can take up to 48 hours to fully open. These flowers can grow up to 40 cm (16 in) in diameter. Each plant continues to produce flowers for a full growing season, and they have co-evolved a mutualistic relationship with a species of scarab beetle of the genus ''Cyclocephala'' as a pollinator. All the buds i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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