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Shepherd's Purse
''Capsella bursa-pastoris'', known as shepherd's purse or lady's purse because of its triangular flat fruits, which are purse-like, is a small annual and ruderal flowering plant in the mustard family (Brassicaceae). Scientists have referred to this species as a protocarnivore, since it has been found that its seeds attract and kill nematodes as a means to locally enrich the soil. It is native to Eurasia but is naturalized and considered a common weed in many parts of the world, especially in colder climates. It has a number of culinary uses. Description ''Capsella bursa-pastoris'' plants grow from a rosette of lobed leaves at the base. From the base emerges a stem most often tall, but occasionally as much as or as little as , which bears a few pointed leaves which partly grasp the stem. The flowers, which appear in any month of the year in the British Isles, are white and small, in diameter, with four petals and six stamens. They are borne in loose racemes, and produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed within a fruit. The group was formerly called Magnoliophyta. Angiosperms are by far the most diverse group of Embryophyte, land plants with 64 Order (biology), orders, 416 Family (biology), families, approximately 13,000 known Genus, genera and 300,000 known species. They include all forbs (flowering plants without a woody Plant stem, stem), grasses and grass-like plants, a vast majority of broad-leaved trees, shrubs and vines, and most aquatic plants. Angiosperms are distinguished from the other major seed plant clade, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids, endosperm within their seeds, and fruits that completely envelop the seeds. The ancestors of flowering plants diverged from the commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Plantarum
' (Latin for "The Species of Plants") is a book by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genus, genera. It is the first work to consistently apply binomial nomenclature, binomial names and was the starting point for the botanical nomenclature, naming of plants. Publication ' was published on 1 May 1753 by Laurentius Salvius in Stockholm, in two volumes. A second edition was published in 1762–1763, and a third edition in 1764, although this "scarcely differed" from the second. Further editions were published after Linnaeus' death in 1778, under the direction of Karl Ludwig Willdenow, the director of the Berlin-Dahlem Botanical Garden and Botanical Museum, Berlin Botanical Garden; the fifth edition was titled "fourth edition" and was published by Willdenow in four volumes, 1798 (1), 1800 (2), 1801 (31), 1803 (32), 1804 (33), 1805 (41), 1806 (42), rather than the dates printed on the volumes themselves. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern Taxonomy (biology), taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was the son of a curate and was born in Råshult, in the countryside of Småland, southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Turner (naturalist)
William Turner (1509/10 – 13 July 1568) was an English people, English Anglicanism#Anglican divines, divine and Protestant Reformer, reformer, a physician and a natural history, natural historian. He has been called “the father of English botany”.Samson, Alexander. ''Locus Amoenus: Gardens and Horticulture in the Renaissance'', 2012 :4 He studied medicine in Italy, and was a friend of the great Swiss people, Swiss naturalist, Conrad Gessner. He was an early herbalist and ornithology, ornithologist, and it is in these fields that the most interest lies today. He is known as being one of the first “parson-naturalists” in England. He first published ''Libellus de Re herbaria'' in Latin in 1538, and later translated it into English because he believed herbalists were not sharing their knowledge. Turner's works were condemned under Henry VIII and under Mary I of England, Mary Tudor. Biography Early years Turner was born in Morpeth, Northumberland, Morpeth, Northumberlan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pharmacopoeia
A pharmacopoeia, pharmacopeia, or pharmacopoea (or the typographically obsolete rendering, ''pharmacopœia''), meaning "drug-making", in its modern technical sense, is a reference work containing directions for the identification of compound medicines. These are published or sanctioned by a government or a medical or pharmaceutical society, giving the work legal authority within a specified jurisdiction. In a broader sense it is a collection of pharmaceutical drug specifications. Descriptions of the individual preparations are called monographs. Etymology The term derives from "making of (healing) medicine, drug-making", a compound of "medicine, drug, poison" (), with the verb "to make" (), and the abstract noun suffix -ία ''-ia''. In early modern editions of Latin texts, the Greek diphthong οι (''oi'') is latinized to its Latin equivalent ''oe'' which is in turn written with the ligature ''œ'', giving the spelling ''pharmacopœia''; in modern UK English, ''œ'' is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louvain
Leuven (, , ), also called Louvain (, , ), is the capital and largest city of the province of Flemish Brabant in the Flemish Region of Belgium. It is located about east of Brussels. The municipality itself comprises the sub-municipalities of Heverlee, Kessel-Lo, Leuven proper, Wilsele, Wijgmaal and part of Haasrode and Korbeek-Lo. It is the eighth largest city in Belgium, with more than 100,244 inhabitants. Leuven has been a university city since 1425. This makes it the oldest university city in the Low Countries. KU Leuven, the largest Dutch-speaking university in the world and the largest university in the Low Countries (and thus also Belgium's largest university), has its flagship campus in Leuven. The city is home of the headquarters of Anheuser-Busch InBev, the world's largest beer brewer and sixth-largest fast-moving consumer goods company. History Middle Ages The earliest mention of Leuven (''Loven'') dates from 891, when a Viking army was defeated by the F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shijing
The ''Classic of Poetry'', also ''Shijing'' or ''Shih-ching'', translated variously as the ''Book of Songs'', ''Book of Odes'', or simply known as the ''Odes'' or ''Poetry'' (; ''Shī''), is the oldest existing collection of Chinese poetry, comprising 305 works dating from the 11th to 7th centuries BC. It is one of the "Five Classics" traditionally said to have been compiled by Confucius, and has been studied and memorized by scholars in China and neighboring countries over two millennia. It is also a rich source of '' chengyu'' (four-character classical idioms) that are still a part of learned discourse and even everyday language in modern Chinese. Since the Qing dynasty, its rhyme patterns have also been analysed in the study of Old Chinese phonology. Name Early references refer to the anthology as the ''300 Poems'' ('' shi''). ''The Odes'' first became known as a ''jīng'', or a "classic book", in the canonical sense, as part of the Han dynasty's official adoption of Conf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated as subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific name, infraspecific ranks, such as variety (botany), variety, may be named. In bacteriology and virology, under standard International Code of Nomenclature of Prokaryotes, bacterial nomenclature and virus clas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capsella (plant)
''Capsella'' is a genus of herbaceous annual and biennial plants in the family Brassicaceae. It is a close relative of ''Arabidopsis'', '' Neslia'', and '' Halimolobos''. Some authors circumscribe ''Capsella'' to contain only three species: '' Capsella bursa-pastoris'', '' Capsella rubella'' and '' Capsella grandiflora''. , Kew's Plants of the World Online Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online i ... list eight species. '' Capsella rubella'' is a self-fertilizing species that became self-compatible 50,000 to 100,000 years ago. Its outcrossing progenitor was ''Capsella grandiflora''. In general, the shift from outcrossing to self-fertilization is among the most common transitions in flowering plants. ''Capsella rubella'' is studied as a model for understanding the evolut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fumaric Acid
Fumaric acid or ''trans''-butenedioic acid is an organic compound with the formula HO2CCH=CHCO2H. A white solid, fumaric acid occurs widely in nature. It has a fruit-like taste and has been used as a food additive. Its E number is E297. The salts and esters are known as fumarates. Fumarate can also refer to the ion (in solution). Fumaric acid is the ''trans'' isomer of butenedioic acid, while maleic acid is the ''cis'' isomer. Biosynthesis and occurrence It is produced in eukaryotic organisms from succinate in complex 2 of the electron transport chain via the enzyme succinate dehydrogenase. Fumaric acid is found in fumitory (''Fumaria officinalis''), bolete mushrooms (specifically ''Boletus fomentarius var. pseudo-igniarius''), lichen, and Iceland moss. Fumarate is an intermediate in the citric acid cycle used by cells to produce energy in the form of adenosine triphosphate (ATP) from food. It is formed by the oxidation of succinate by the enzyme succinate dehydr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Generation Time
In population biology and demography Demography () is the statistical study of human populations: their size, composition (e.g., ethnic group, age), and how they change through the interplay of fertility (births), mortality (deaths), and migration. Demographic analysis examine ..., generation time is the average time between two consecutive generations in the lineages of a population. In human populations, generation time typically has ranged from 20 to 30 years, with wide variation based on gender and society. Historians sometimes use this to date events, by converting generations into years to obtain rough estimates of time. Definitions and corresponding formulas The existing definitions of generation time fall into two categories: those that treat generation time as a renewal time of the population, and those that focus on the distance between individuals of one generation and the next. Below are the three most commonly used definitions: Time for a population to gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
