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Grielum Humifusum IMG 8360
''Grielum'' is a genus of four accepted species of plants in the family Neuradaceae. They are low-growing annual herbs endemic to dry regions, mainly in Western South Africa and Namibia. Description The genus comprises annual dwarf herbs with pronounced taproots. * The leaves are more or less furry, and may be canescent or tomentose. They are lobed at least, but more typically are decompound. The stipules are obsolete, being barely evident if present at all. * The flowers are conspicuous and are borne on singly on pedicels in leaf axils. They are generally vivid lemon-yellow in colour, but with a white centre in some species. The calyx has five sepals, forming a shallow cup. The corolla has five petals, usually imbricate and thereby forming a shallow bowl, though this is less evident if the petals happen to be narrow, as sometimes occurs on a particular plant. The petals are inserted into the throat of the calyx cup. There are ten stamens, more or less set in two whorls of fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grielum Humifusum
''Grielum humifusum'' is a species of flowering plant in the family Neuradaceae The Neuradaceae are a family of flowering plant, comprising three genera — ''Grielum'', '' Neurada'' and '' Neuradopsis'' — totalling ten known species. These genera were formerly placed in order Rosales, and in one case even in family Rosa .... References Neuradaceae {{Malvales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Connation
Connation in plants is the developmental fusion of organs of the same type, for example, petals to one another to form a tubular corolla. This is in contrast to adnation, the fusion of dissimilar organs. Such organs are described as connate or adnate, respectively. When like organs that are usually well separated are placed next to each other, but not actually connected, they are described as connivent (that is the case for anthers in several genera, such as ''Solanum''). Terms for connation of flower parts *Synsepalous: All the sepals of a flower are fused into a cup or tube; the fused portion is the calyx tube, and any non fused tips are the calyx lobes. *Sympetalous: All the petals of a flower are fused into a cup, tube, or other shape. *Stamens: **Synandrous: Stamens are fused in an unspecified manner **Synfilamentous: Stamens are fused by their filaments **Synantherous: Stamens are fused by their anthers *Syncarpous: Carpels are fused together to form a compound ovary Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grielum Grandiflorum
''Grielum'' is a genus of four accepted species of plants in the family Neuradaceae. They are low-growing annual herbs endemic to dry regions, mainly in Western South Africa and Namibia. Description The genus comprises annual dwarf herbs with pronounced taproots. * The leaves are more or less furry, and may be canescent or tomentose. They are lobed at least, but more typically are decompound. The stipules are obsolete, being barely evident if present at all. * The flowers are conspicuous and are borne on singly on pedicels in leaf axils. They are generally vivid lemon-yellow in colour, but with a white centre in some species. The calyx has five sepals, forming a shallow cup. The corolla has five petals, usually imbricate and thereby forming a shallow bowl, though this is less evident if the petals happen to be narrow, as sometimes occurs on a particular plant. The petals are inserted into the throat of the calyx cup. There are ten stamens, more or less set in two whorls of fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grielum Cuneifolium
''Grielum'' is a genus of four accepted species of plants in the family Neuradaceae. They are low-growing annual herbs endemic to dry regions, mainly in Western South Africa and Namibia. Description The genus comprises annual dwarf herbs with pronounced taproots. * The leaves are more or less furry, and may be canescent or tomentose. They are lobed at least, but more typically are decompound. The stipules are obsolete, being barely evident if present at all. * The flowers are conspicuous and are borne on singly on pedicels in leaf axils. They are generally vivid lemon-yellow in colour, but with a white centre in some species. The calyx has five sepals, forming a shallow cup. The corolla has five petals, usually imbricate and thereby forming a shallow bowl, though this is less evident if the petals happen to be narrow, as sometimes occurs on a particular plant. The petals are inserted into the throat of the calyx cup. There are ten stamens, more or less set in two whorls of fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afrikaans
Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gradually began to develop distinguishing characteristics during the course of the 18th century. Now spoken in South Africa, Namibia and (to a lesser extent) Botswana, Zambia, and Zimbabwe, estimates circa 2010 of the total number of Afrikaans speakers range between 15 and 23 million. Most linguists consider Afrikaans to be a partly creole language. An estimated 90 to 95% of the vocabulary is of Dutch origin with adopted words from other languages including German and the Khoisan languages of Southern Africa. Differences with Dutch include a more analytic-type morphology and grammar, and some pronunciations. There is a large degree of mutual intelligibility between the two languages, especially in written form. About 13.5% of the South ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duiker
A duiker is a small to medium-sized brown antelope native to sub-Saharan Africa, found in heavily wooded areas. The 22 extant species, including three sometimes considered to be subspecies of the other species, form the subfamily Cephalophinae or the tribe Cephalophini. Taxonomy and phylogeny The tribe Cephalophini (formerly the subfamily Cephalophinae) comprises three genera and 22 species, three of which are sometimes considered to be subspecies of the other species. The three genera include ''Cephalophus'' (15 species and three disputed taxa), ''Philantomba'' (three species), and ''Sylvicapra'' (one species). The subfamily was first described by British zoologist John Edward Gray in 1871 in ''Proceedings of the Zoological Society of London''. The scientific name "Cephalophinae" probably comes from the combination of the New Latin word ''cephal'', meaning head, and the Greek word ''lophos'', meaning crest. The three disputed species in ''Cephalophus'' are Brooke's dui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and sle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Style (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and slen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trample-bur
A bur (also spelled burr) is a seed or dry fruit or infructescence that has hooks or teeth. The main function of the bur is to spread the seeds of the bur plant, often through epizoochory. The hooks of the bur are used to catch on to for example fur or fabric, so that the bur, which contain seeds, then can be transported along with the thing it attached itself to. Another use for the spines and hooks are physical protection against herbivores. Their ability to stick to animals and fabrics has shaped their reputation as bothersome. Some other forms of Diaspore (botany), diaspores, such as the stems of certain species of Cactaceae, cactus also are covered with thorns and may function as burs. Bur-bearing plants such as ''Xanthium'' species are often single-stemmed when growing in dense groups, but branch and spread when growing singly. The number of burs per fruit along with the size and shape can vary largely between different bur plants. Function Containing seeds, burs sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaspore (botany)
In botany, a diaspore is a plant dispersal unit consisting of a seed or spore plus any additional tissues that assist dispersal. In some seed plants, the diaspore is a seed and fruit together, or a seed and elaiosome. In a few seed plants, the diaspore is most or all of the plant, and is known as a tumbleweed. Diaspores are common in weedy and ruderal species. Collectively, diaspores, seeds, and spores that have been modified for migration are known as ''disseminules''. Role in dispersal A diaspore of seed plus elaiosome is a common adaptation to seed dispersal by ants (myrmecochory). This is most notable in Australian and South African sclerophyll plant communities. Typically, ants carry the diaspore to their nest, where they may eat the elaiosome and discard the seed, and the seed may subsequently germinate. A diaspore of seed(s) plus fruit is common in plants dispersed by frugivores. Fruit-eating bats typically carry the diaspore to a favorite perch, where they eat the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedicel (botany)
In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absence of a pedicel, the flowers are described as sessile. Pedicel is also applied to the stem of the infructescence. The word "pedicel" is derived from the Latin ''pediculus'', meaning "little foot". The stem or branch from the main stem of the inflorescence that holds a group of pedicels is called a peduncle. A pedicel may be associated with a bract or bracts. In cultivation In Halloween types of pumpkin or squash plants, the shape of the pedicel has received particular attention because plant breeders are trying to optimize the size and shape of the pedicel for the best "lid" for a "jack-o'-lantern". Gallery File:Asclepias amplexicaulis.jpg, Long pedicels of clasping milkweed with a single peduncle File:314 Prunus avium.jpg, Cherr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
