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Lithops
''Lithops'' is a genus of succulent plants in the ice plant family, Aizoaceae. Members of the genus are native to southern Africa. The name is derived from the Ancient Greek words () 'stone' and () 'face', referring to the stone-like appearance of the plants. They avoid being eaten by blending in with surrounding rocks and are often known as pebble plants or living stones. The formation of the name from the Ancient Greek ''-ops'' means that even a single plant is called a Lithops. Description Individual ''Lithops'' plants consist of one or more pairs of bulbous, almost fused leaves opposite to each other and hardly any stem. The slit between the leaves contains the meristem and produces flowers and new leaves. The leaves of ''Lithops'' are mostly buried below the surface of the soil, with a partially or completely translucent top surface known as a leaf window which allows light to enter the interior of the leaves for photosynthesis. During winter a new leaf pair, or occa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithops Turbiniformis 1
''Lithops'' is a genus of succulent plants in the ice plant family, Aizoaceae. Members of the genus are native to southern Africa. The name is derived from the Ancient Greek words () 'stone' and () 'face', referring to the stone-like appearance of the plants. They avoid being eaten by blending in with surrounding rocks and are often known as pebble plants or living stones. The formation of the name from the Ancient Greek ''-ops'' means that even a single plant is called a Lithops. Description Individual ''Lithops'' plants consist of one or more pairs of bulbous, almost fused leaves opposite to each other and hardly any stem. The slit between the leaves contains the meristem and produces flowers and new leaves. The leaves of ''Lithops'' are mostly buried below the surface of the soil, with a partially or completely translucent top surface known as a leaf window which allows light to enter the interior of the leaves for photosynthesis. During winter a new leaf pair, or oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithops Pseudotruncatella
''Lithops pseudotruncatella'' is a species of succulent in the family Aizoaceae. It is often confused with '' Conophytum truncatum,'' but with attention to detail, it can be distinguished. This confusion associated with ''L. pseudotruncatella'' is also where it derives its name, literally meaning "fake-''truncatum" ('' referring to '' C. trunctatum''). It also received The Royal Horticultural Society's Award of Garden Merit. The plant is found throughout much of Southern Africa. Description Leaves are thick, and similar to that of the rest of the genus ''Lithops ''Lithops'' is a genus of succulent plants in the ice plant family, Aizoaceae. Members of the genus are native to southern Africa. The name is derived from the Ancient Greek words () 'stone' and () 'face', referring to the stone-like appearanc ...''. The leaves are paired in twos, and the plant as a whole does not grow larger than 5 cm in height. They are grey to green in color with branched marbling on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithops Salicola
''Lithops salicola'' is a species of perennial plant in the family Aizoaceae, often called living stones, because of its resemblance to round grey pebbles. Description ''Lithops salicola'' has two coupled leaves, divided by a fissure through which the flowers appear. It is cylindrical or conical with a flat surface and green-gray coloration. The flowers are white and very small. It grows to a height of . Distribution This species can be found in Namibia and South Africa at an altitude of to . It is generally found in well-drained soil or in rock crevices. It occurs in an area of summer rainfall. Cultivation ''L. salicola'' is commonly used as a houseplant or for landscaping. Like all ''Lithops'' species, it requires extremely well-drained soil. It also grows in annual cycles, as the leaf-pairs flower, and then each produces a new leaf-pair that replaces the old one (which shrivels away). The principal rule of watering is that plants should be kept dry from when they finish flow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithops Optica
''Lithops optica'' is a species of plant in the family Aizoaceae, endemic to Namibia. Name and description The name "optica" means "eye-like" and refers to the rounded windows at the top of the leaves. In habitat, these two leaves emerge just above the surface of the ground. The well-known and widely cultivated "rubra" variety is a bright purple/red colour. While most specimens of Lithops optica do not have this colour, the "rubra" variety is by far the most commonly cultivated. Distribution This species occurs in the coastal areas around Lüderitz, Namibia. This is a very arid "mist-belt" area, with winter rainfall but extremely dry conditions. It is therefore one of the few species of ''Lithops'' which is adapted to a winter rainfall climate. Its natural habitat is sandy soil in rocky areas. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Window
Leaf window, also known as epidermal window, and fenestration. is a specialized leaf structure consisting of a translucent area through which light can enter the interior surfaces of the leaf where photosynthesis can occur. The translucent structure may include epidermal tissue, and in some succulent plants it consists of several cell layers of parenchyma, which may also function as water-storage tissue. It can appear as a large continuous patch, a variegated or reticulated region, or as numerous small spots. Is found in some succulent plants native to arid climates, allowing much of the plant to remain beneath the soil surface where it is protected from desiccation by winds and heat while optimizing light absorption. Many species featuring leaf windows are native to Southern Africa. Functions The primary function of the translucent windows is to increase the absorption of radiant energy, and thereby the rate of photosynthesis. Epidermal windows are commonly situated at the apex of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Window
Leaf window, also known as epidermal window, and fenestration. is a specialized leaf structure consisting of a translucent area through which light can enter the interior surfaces of the leaf where photosynthesis can occur. The translucent structure may include epidermal tissue, and in some succulent plants it consists of several cell layers of parenchyma, which may also function as water-storage tissue. It can appear as a large continuous patch, a variegated or reticulated region, or as numerous small spots. Is found in some succulent plants native to arid climates, allowing much of the plant to remain beneath the soil surface where it is protected from desiccation by winds and heat while optimizing light absorption. Many species featuring leaf windows are native to Southern Africa. Functions The primary function of the translucent windows is to increase the absorption of radiant energy, and thereby the rate of photosynthesis. Epidermal windows are commonly situated at the apex of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aizoaceae
The Aizoaceae, or fig-marigold family, is a large family of dicotyledonous flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...s containing 135 genus, genera and about 1800 species. They are commonly known as ice plants or carpet weeds. They are often called vygies in South Africa and New Zealand. Highly Succulent plant, succulent species that resemble stones are sometimes called mesembs. Description The family Aizoaceae is widely recognised by taxonomists. It once went by the botanical name "Ficoidaceae", now disallowed. The APG II system of 2003 (unchanged from the APG system of 1998) also recognizes the family, and assigns it to the order Caryophyllales in the clade core eudicots. The APG II system also classes the former families Mesembryanthemaceae Fenzl, S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesemb
The Aizoaceae, or fig-marigold family, is a large family of dicotyledonous flowering plants containing 135 genera and about 1800 species. They are commonly known as ice plants or carpet weeds. They are often called vygies in South Africa and New Zealand. Highly succulent species that resemble stones are sometimes called mesembs. Description The family Aizoaceae is widely recognised by taxonomists. It once went by the botanical name "Ficoidaceae", now disallowed. The APG II system of 2003 (unchanged from the APG system of 1998) also recognizes the family, and assigns it to the order Caryophyllales in the clade core eudicots. The APG II system also classes the former families Mesembryanthemaceae Fenzl, Sesuviaceae Horan. and Tetragoniaceae Link under the family Aizoaceae. The common Afrikaans name "vygie" meaning "small fig" refers to the fruiting capsule, which resembles the true fig. Glistening epidermal bladder cells give the family its common name "ice plants". Most s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Succulent Plant
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meaning "juice" or "sap". Succulent plants may store water in various structures, such as leaf, leaves and Plant stem, stems. The water content of some succulent organs can get up to 90–95%, such as ''Glottiphyllum semicyllindricum'' and ''Mesembryanthemum barkleyii''. Some definitions also include roots, thus geophytes that survive unfavorable periods by dying back to underground storage organs may be regarded as succulents. The habitats of these water-preserving plants are often in areas with high temperatures and low rainfall, such as deserts, but succulents may be found even in Alpine climate, alpine ecosystems growing in rocky soil. Succulents are characterized by their ability to thrive on limited water sources, such as mist and dew, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicholas Edward Brown
Nicholas Edward Brown (11 July 1849 in Redhill, Surrey – 25 November 1934 in Kew Gardens, London) was an English plant taxonomist and authority on succulents. He was also an authority on several families of plants, including Asclepiadaceae, Aizoaceae, Labiatae and Cape plants. Background He started work as an assistant in the Herbarium at Kew in 1873, and was Assistant Keeper from 1909 to 1914. His drawings of succulent plants were made in connection with his revision of the genus ''Mesembryanthemum'', which appeared in 1931, and are accompanied by detailed annotations. He was the author of important works on plant taxonomy particularly succulent plants. The Araceae genus '' Nebrownia'' was named in his honour by Otto Kuntze. A number of plants bear the specific name "''nebrownii''" - such as ''Acacia nebrownii'', ''Gibbaeum nebrownii'', ''Caralluma nebrownii'' and ''Lithops olivacea v nebrownii'', as does a waterhole in the Etosha National Park. The plant ''Anthurium bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissected Lithops 0133 (3137859955)(cropped)
Dissection (from Latin ' "to cut to pieces"; also called anatomization) is the dismembering of the body of a deceased animal or plant to study its anatomical structure. Autopsy is used in pathology and forensic medicine to determine the cause of death in humans. Less extensive dissection of plants and smaller animals preserved in a formaldehyde solution is typically carried out or demonstrated in biology and natural science classes in middle school and high school, while extensive dissections of cadavers of adults and children, both fresh and preserved are carried out by medical students in medical schools as a part of the teaching in subjects such as anatomy, pathology and forensic medicine. Consequently, dissection is typically conducted in a morgue or in an anatomy lab. Dissection has been used for centuries to explore anatomy. Objections to the use of cadavers have led to the use of alternatives including virtual dissection of computational anatomy, computer models. Overvie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adaptation
In biology, adaptation has three related meanings. Firstly, it is the dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness. Secondly, it is a state reached by the population during that process. Thirdly, it is a phenotypic trait or adaptive trait, with a functional role in each individual organism, that is maintained and has evolved through natural selection. Historically, adaptation has been described from the time of the ancient Greek philosophers such as Empedocles and Aristotle. In 18th and 19th century natural theology, adaptation was taken as evidence for the existence of a deity. Charles Darwin proposed instead that it was explained by natural selection. Adaptation is related to biological fitness, which governs the rate of evolution as measured by change in allele frequencies. Often, two or more species co-adapt and co-evolve as they develop adaptations that interlock with those of the oth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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