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Atulananda Das
Atulananda Das (1879–1952) was an Indian botanist and forester noted for working for the Assam region of the Indian Forestry Service and describing species in the families Ericaceae, Ebenaceae, Dipterocarpaceae, Myrtaceae, Euphorbiaceae, Helwingiaceae, Flacourtiaceae, Lauraceae, Acanthaceae, Fagaceae, and Symplocaceae. In 1935 he was elected a Fellow of the Linnean Society of London The Linnean Society of London is a learned society dedicated to the study and dissemination of information concerning natural history, evolution, and taxonomy. It possesses several important biological specimen, manuscript and literature colle .... Species described *''Agapetes kanjilali'' Das (1935). *''Agapetes racemosa'' Watt ex Kanjilal & Das (1939). *''Dipterocarpus mannii'' King ex U.N.Kanj., P.C.Kanjilal & Das (1934). *''Eugenia cyanophylla'' P.C.Kanjilal & Das (1937). *''Flueggeopsis glauca'' (Wall. ex Hook.f.) Das (1940). *''Helwingia lanceolata'' Watt ex Kanjilal, P.C.Kanjilal & Das ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian People
Indians or Indian people are the Indian nationality law, citizens and nationals of India. In 2022, the population of India stood at over 1.4 billion people, making it the world's List of countries and dependencies by population, second-most populous country, containing 17.7 percent of the global population. In addition to the Indian population, the Non-resident Indian and Overseas Citizen of India, Indian overseas diaspora also boasts large numbers, particularly in the Arab states of the Persian Gulf and the Western world. While the demonym "Indian" applies to people originating from the present-day Republic of India, it was also formerly used as the identifying term for people originating from Pakistan and Bangladesh during British Raj, British colonial era until 1947. Particularly in North America, the terms "Asian Indian" and "East Indian" are sometimes used to differentiate Indians from the indigenous peoples of the Americas; although the Native American name controversy, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lauraceae
Lauraceae, or the laurels, is a plant family that includes the true laurel and its closest relatives. This family comprises about 2850 known species in about 45 genera worldwide (Christenhusz & Byng 2016 ). They are dicotyledons, and occur mainly in warm temperate and tropical regions, especially Southeast Asia and South America. Many are aromatic evergreen trees or shrubs, but some, such as ''Sassafras'', are deciduous, or include both deciduous and evergreen trees and shrubs, especially in tropical and temperate climates. The genus ''Cassytha'' is unique in the Lauraceae in that its members are parasitic vines. Most laurels are highly-poisonous. Overview The family has a worldwide distribution in tropical and warm climates. The Lauraceae are important components of tropical forests ranging from low-lying to montane. In several forested regions, Lauraceae are among the top five families in terms of the number of species present. The Lauraceae give their name to habitats know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1952 Deaths
Year 195 ( CXCV) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Scrapula and Clemens (or, less frequently, year 948 ''Ab urbe condita''). The denomination 195 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus has the Roman Senate deify the previous emperor Commodus, in an attempt to gain favor with the family of Marcus Aurelius. * King Vologases V and other eastern princes support the claims of Pescennius Niger. The Roman province of Mesopotamia rises in revolt with Parthian support. Severus marches to Mesopotamia to battle the Parthians. * The Roman province of Syria is divided and the role of Antioch Antioch on the Orontes (; grc-gre, Ἀντιόχεια ἡ ἐπὶ Ὀρόντου, ''Antiókhei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1879 Births
Events January–March * January 1 – The Specie Resumption Act takes effect. The United States Note is valued the same as gold, for the first time since the American Civil War. * January 11 – The Anglo-Zulu War begins. * January 22 – Anglo-Zulu War – Battle of Isandlwana: A force of 1,200 British soldiers is wiped out by over 20,000 Zulu warriors. * January 23 – Anglo-Zulu War – Battle of Rorke's Drift: Following the previous day's defeat, a smaller British force of 140 successfully repels an attack by 4,000 Zulus. * February 3 – Mosley Street in Newcastle upon Tyne (England) becomes the world's first public highway to be lit by the electric incandescent light bulb invented by Joseph Swan. * February 8 – At a meeting of the Royal Canadian Institute, engineer and inventor Sandford Fleming first proposes the global adoption of standard time. * March 3 – United States Geological Survey is founded. * March 11 – Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linnean Society Of London
The Linnean Society of London is a learned society dedicated to the study and dissemination of information concerning natural history, evolution, and taxonomy. It possesses several important biological specimen, manuscript and literature collections, and publishes academic journals and books on plant and animal biology. The society also awards a number of prestigious medals and prizes. A product of the 18th-century enlightenment, the Society is the oldest extant biological society in the world and is historically important as the venue for the first public presentation of the theory of evolution by natural selection on 1 July 1858. The patron of the society was Queen Elizabeth II. Honorary members include: King Charles III of Great Britain, Emeritus Emperor Akihito of Japan, King Carl XVI Gustaf of Sweden (both of latter have active interests in natural history), and the eminent naturalist and broadcaster Sir David Attenborough. History Founding The Linnean Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symplocaceae
Symplocaceae is a family of flowering plants in the order Ericales, including two genera, ''Symplocos ''Symplocos'' is a genus of flowering plants in the order Ericales. It contains about 300 species distributed in Asia and the Americas. Many species grow in humid tropical regions. This is sometimes considered to be the only genus in family Sym ...'' and '' Cordyloblaste'', totalling about 260 known species. The common name for Symplocaceae is sweetleaf. Symplocaceae has a transpacific distribution that covers the Southeast United States, South America, Southeast Asia and Northern Australia. Plants in the family Symplocaceae are generally trees or shrubs, and are found in humid, tropical, montane forests within their range. Description The leaves of Symplocaceae are generally simple and are alternate or spirally arranged. The margin is either dentate, glandular-dentate, or entire. The petioles of the leaves lack stipules at the base. The flowers of Symplocaceae appear as an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fagaceae
The Fagaceae are a family of flowering plants that includes beeches, chestnuts and oaks, and comprises eight genera with about 927 species. Fagaceae in temperate regions are mostly deciduous, whereas in the tropics, many species occur as evergreen trees and shrubs. They are characterized by alternate simple leaves with pinnate venation, unisexual flowers in the form of catkins, and fruit in the form of cup-like (cupule) nuts. Their leaves are often lobed and both petioles and stipules are generally present. Their fruits lack endosperm and lie in a scaly or spiny husk that may or may not enclose the entire nut, which may consist of one to seven seeds. In the oaks, genus ''Quercus'', the fruit is a non-valved nut (usually containing one seed) called an acorn. The husk of the acorn in most oaks only forms a cup in which the nut sits. Other members of the family have fully enclosed nuts. Fagaceae is one of the most ecologically important woody plant families in the Northern Hemispher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthaceae
Acanthaceae is a family (the acanthus family) of dicotyledonous flowering plants containing almost 250 genera and about 2500 species. Most are tropical herbs, shrubs, or twining vines; some are epiphytes. Only a few species are distributed in temperate regions. The four main centres of distribution are Indonesia and Malaysia, Africa, Brazil, and Central America. Representatives of the family can be found in nearly every habitat, including dense or open forests, scrublands, wet fields and valleys, sea coast and marine areas, swamps, and mangrove forests. Description Plants in this family have simple, opposite, decussated leaves with entire (or sometimes toothed, lobed, or spiny) margins, and without stipules. The leaves may contain cystoliths, calcium carbonate concretions, seen as streaks on the surface. The flowers are perfect, zygomorphic to nearly actinomorphic, and arranged in an inflorescence that is either a spike, raceme, or cyme. Typically, a colorful bract subtends ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flacourtiaceae
The Flacourtiaceae is a defunct family of flowering plants whose former members have been scattered to various families, mostly to the Achariaceae and Salicaceae. It was so vaguely defined that hardly anything seemed out of place there and it became a dumping ground for odd and anomalous genera, gradually making the family even more heterogeneous. In 1975, Hermann Sleumer noted that "Flacourtiaceae as a family is a fiction; only the tribes are homogeneous." In Cronquist's classification, the Flacourtiaceae included 79–89 genera and 800–1000 species. Of these, many, including the type genus ''Flacourtia'', have now been transferred to the Salicaceae in the molecular phylogeny-based classification, known as the APG IV system, established by the Angiosperm Phylogeny Group. In the list below, the Salicaceae are circumscribed broadly. Some taxonomists further divide the Salicaceae ''sensu lato ''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanist
Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word (''botanē'') meaning "pasture", " herbs" "grass", or " fodder"; is in turn derived from (), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes. Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, med ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helwingiaceae
The genus ''Helwingia'' consists of shrubs or rarely small trees native to eastern Asia, the Himalayas, and northern Indochina. It is the only genus in the family Helwingiaceae. Description The plants have alternate, evergreen or deciduous leaves and small inflorescences that are epiphyllous (growing from the leaf surface). During development, the flowers appear separate from the leaves, but eventually fuse with the leaf midrib. Flowers are small and yellow-green or purple, followed by red or black berries. Plants are dioecious. Epiphyllous inflorescences This trait is rather unusual among plants. This strange floral position upon a leaf is believed to be an adaption to insect pollination. Pollinators, which are too large for the flowers, land on the leaf surfaces and can pollinate the flowers, which would not be able to support the pollinators themselves. Taxonomy The APG II classification (2003) places them in the order Aquifoliales, along with the hollies and Phyllonomaceae, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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