|
Vinticena
''Grewia'' is a large flowering plant genus in the mallow family Malvaceae, in the expanded sense as proposed by the Angiosperm Phylogeny Group. Formerly, ''Grewia'' was placed in either the family Tiliaceae or the Sparrmanniaceae. However, these were both not monophyletic with respect to other Malvales - as already indicated by the uncertainties surrounding placement of ''Grewia'' and similar genera - and have thus been merged into the Malvaceae. Together with the bulk of the former Sparrmanniaceae, ''Grewia'' is in the subfamily Grewioideae and therein the tribe Grewieae, of which it is the type genus. The genus was named by Carl Linnaeus, in honor of the botanist Nehemiah Grew (1641-1712) from England. Grew was one of the leading plant anatomists and microscope researchers of his time, and his study of pollen laid the groundwork for modern-day palynology. Ecology and uses Several Lepidoptera caterpillars are found to feed on ''Grewia'' species. These include the common naw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grewia Flavescens (G Pilosa)- Khatkhati In Hyderabad, AP W IMG 9130
''Grewia flavescens'', called rough-leaved raisin, sandpaper raisin, and donkey berry (a name it shares with ''Grewia bicolor''), is a species of flowering plant in the family Malvaceae, native to subSaharan Africa, Yemen, Saudi Arabia, and India. It is considered to be an underutilized crop, both for its fruit and its use for livestock forage. Caterpillars of ''Anaphe reticulata ''Anaphe reticulata'', commonly known as the reticulate bagnest or reticulate bagnet, is a moth of the family Notodontidae which is native to savannah in sub-Saharan Africa. It was described by Francis Walker in 1855. It has been recorded from An ...'' have been found to feed on the foliage. Gallery Grewia flavescens, hoekige stam, Waterberg Natuurpraal, a.jpg, Larger stems are characteristically angular Grewia flavescens, ryp vrug, Waterberg Natuurpraal, a.jpg, Ripe fruit, winter Grewia flavescens, loof en vrugte, Waterberg Natuurpraal, b.jpg, Dry fruit, winter References flavescens Flora of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grewia Tiliaefolia Flowers & Leaves In Hyderabad W2 IMG 9422
''Grewia'' is a large flowering plant genus in the mallow family Malvaceae, in the expanded sense as proposed by the Angiosperm Phylogeny Group. Formerly, ''Grewia'' was placed in either the family Tiliaceae or the Sparrmanniaceae. However, these were both not monophyletic with respect to other Malvales - as already indicated by the uncertainties surrounding placement of ''Grewia'' and similar genera - and have thus been merged into the Malvaceae. Together with the bulk of the former Sparrmanniaceae, ''Grewia'' is in the subfamily Grewioideae and therein the tribe Grewieae, of which it is the type genus. The genus was named by Carl Linnaeus, in honor of the botanist Nehemiah Grew (1641-1712) from England. Grew was one of the leading plant anatomists and microscope researchers of his time, and his study of pollen laid the groundwork for modern-day palynology. Ecology and uses Several Lepidoptera caterpillars are found to feed on ''Grewia'' species. These include the common naw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sparrmanniaceae
Sparrmanniaceae is a segregate, probably obsolete, plant family, containing plants which have more commonly been classified in Malvaceae or Tiliaceae. In the most recent proposed circumscription, that of Cheek ex Heywood et al., it corresponds to subfamily Grewioideae of the APG family Malvaceae.Kubitzki & Bayer, Families and Genera of Vascular Plants V (2005) Genera formerly included in the Sparrmanniaceae: * '' Ancistrocarpus'' * '' Apeiba'' * '' Clappertonia'' * '' Colona'' * '' Corchorus'' * '' Desplatsia'' * '' Duboscia'' * '' Eleutherostylis'' * '' Entelea'' * '' Erinocarpus'' * '' Glyphaea'' * '' Goethalsia'' * ''Grewia ''Grewia'' is a large flowering plant genus in the mallow family (biology), family Malvaceae, in the expanded sense as proposed by the Angiosperm Phylogeny Group. Formerly, ''Grewia'' was placed in either the family Tiliaceae or the Sparrmanni ...'' * '' Heliocarpus'' * '' Hydrogaster'' * '' Luehea'' * '' Lueheopsis'' * '' Microcos'' * '' Mollia'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grewia Damine In Hyderabad W2 IMG 9430
''Grewia'' is a large flowering plant genus in the mallow family Malvaceae, in the expanded sense as proposed by the Angiosperm Phylogeny Group. Formerly, ''Grewia'' was placed in either the family Tiliaceae or the Sparrmanniaceae. However, these were both not monophyletic with respect to other Malvales - as already indicated by the uncertainties surrounding placement of ''Grewia'' and similar genera - and have thus been merged into the Malvaceae. Together with the bulk of the former Sparrmanniaceae, ''Grewia'' is in the subfamily Grewioideae and therein the tribe Grewieae, of which it is the type genus. The genus was named by Carl Linnaeus, in honor of the botanist Nehemiah Grew (1641-1712) from England. Grew was one of the leading plant anatomists and microscope researchers of his time, and his study of pollen laid the groundwork for modern-day palynology. Ecology and uses Several Lepidoptera caterpillars are found to feed on ''Grewia'' species. These include the common naw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microscope
A microscope () is a laboratory equipment, laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope. There are many types of microscopes, and they may be grouped in different ways. One way is to describe the method an instrument uses to interact with a sample and produce images, either by sending a beam of light or electrons through a sample in its optical path, by detecting fluorescence, photon emissions from a sample, or by scanning across and a short distance from the surface of a sample using a probe. The most common microscope (and the first to be invented) is the optical microscope, which uses lenses to refract visible light that passed through a microtome, thinly sectioned sample to produce an observable image. Other major types of microscopes are the fluorescence micro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Genus
In biological taxonomy, the type genus (''genus typica'') is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal family-group taxon is a nominal genus called the 'type genus'; the family-group name is based upon that of the type genus." Any family-group name must have a type genus (and any genus-group name must have a type species, but any species-group name may, but need not, have one or more type specimens). The type genus for a family-group name is also the genus that provided the stem to which was added the ending -idae (for families). :Example: The family name Formicidae has as its type genus the genus ''Formica'' Linnaeus, 1758. Botanical nomenclature In botanical nomenclature, the phrase "type genus" is used, unofficially, as a term of convenience. In the '' ICN'' this phrase has no status. The code uses type specimens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nehemiah Grew
Nehemiah Grew (26 September 164125 March 1712) was an English plant anatomist and physiologist, known as the "Father of Plant Anatomy". Biography Grew was the only son of Obadiah Grew (1607–1688), Nonconformist divine and vicar of St Michaels, Coventry, and was born in Warwickshire. He graduated at Pembroke College, Cambridge in 1661, and ten years later took the degree of MD at Leiden University, his thesis being ''Disputatio medico-physica de liquore nervoso''. He began observations on the anatomy of plants in 1664, and in 1670 his essay, ''The Anatomy of Vegetables begun'', was communicated to the Royal Society by Bishop Wilkins, on whose recommendation he was in the following year elected a fellow. In 1672, when the essay was published, he settled in London, and soon acquired an extensive practice as a physician. In 1673 he published his ''Idea of a Phytological History'', which consisted of papers he had communicated to the Royal Society in the preceding year, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatomist
Anatomy () is the branch of morphology concerned with the study of the internal structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having its beginnings in prehistoric times. Anatomy is inherently tied to developmental biology, embryology, comparative anatomy, evolutionary biology, and phylogeny, as these are the processes by which anatomy is generated, both over immediate and long-term timescales. Anatomy and physiology, which study the structure and function of organisms and their parts respectively, make a natural pair of related disciplines, and are often studied together. Human anatomy is one of the essential basic sciences that are applied in medicine, and is often studied alongside physiology. Anatomy is a complex and dynamic field that is constantly evolving as discoveries are made. In recent years, there has been a significant increase in the use of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grewia Occidentalis
''Grewia occidentalis'', the crossberry, is a species of deciduous tree, indigenous to Southern Africa. Description A dense, attractive shrub or small tree with dark green leaves 3-10m high, sometimes scrambling. The common names are "crossberry" and "four-corner." Its simple leaves are shiny, deep green and slightly fleshy, about 5-7cm long with small rounded teeth. The sepals and petals form unusual double star-shaped flowers, purple, mauve, pink or rarely white, 1.5-3cm across. Flower time is summer, followed by four-lobed fruits (drupes). These shiny reddish-brown berry-like fruits remain on the tree after maturity and attract fruit-eating birds. Distribution and Habitat Grewia occidentalis occurs naturally across south-eastern Africa, where its range extends from Cape Town along the coast to Mozambique and inland to Zimbabwe. The native habitats of the plant are extremely varied, it is found in both the arid karoo of western South Africa and from the Highveld, and across ... [...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] |
Grewioideae
Grewioideae is a subfamily of the family Malvaceae and was first described by Hochreutiner. The group is named after its type genus, ''Grewia'', which is named for the English scientist Nehemiah Grew (1641–1712). It contains a number of genera that were previously placed in the defunct family Tiliaceae. Description Within the Malvaceae, this subfamily has its inflorescences opposite the leaves, the corollas are usually clawed, and there is a nectar-bearing hair carpet at the base of the petals and there are numerous dithecal stamens. The fruit is fleshy or capsular with spines, and the seeds are winged. The group is thought to have originated about 42 (± 15) million years ago. Taxonomy Ulrike Brunken & Alexandra Muellner divide the Grewioideae into two clades, the Grewia clade, Grewieae Endl. and the Apeiba clade, Apeibeae Benth., on the basis of morphological and molecular evidence. Tribes and genera The subfamily includes the following genera - accepted by Bayer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
