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Goniothalamus Grandiflorus
''Goniothalamus grandiflorus'' is a species of rainforest tree in the Custard Apple Family Annonaceae. It is native to New Guinea and the Solomon Islands. It was first species description, formally described by Otto Warburg (botanist), Otto Warburg, a German-Jewish botanist, using the basionym ''Beccariodendron grandiflorum'' after its big, dark red flowers. These flowers are borne directly on the trunk and major branches (cauliflory), the largest of all cauliflorous flowers. Description It is a tree with gray smooth branches. Its young branches have rust colored hairs. Its petiole (botany), petioles are 1 centimeters long. Its hairless, elliptical to oblong leaves are 20-25 by 8-9 centimeters with tips that taper to a short point and bases that come to a shallow point. The upper surface of leaves are bright colored while the undersides are paler. The leaves have 9-12 pairs of secondary veins emanating from their midribs. Its flowers are on 15 millimeter long pedicel (botany), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Warburg (botanist)
Otto Warburg (20 July 1859 – 10 January 1938) was a German-Jewish botanist. He was also a notable industrial agriculture expert, and president of the Zionist Organization from 1911 to 1921. Biography Otto Warburg was born in Hamburg on 20 July 1859 to a family whose ancestors came to Germany in 1566, possibly from Bologna. He completed his studies at the Johanneum Gymnasium in Hamburg in 1879, and continued his education in the field of botany at the University of Bonn which he left after one semester to move to the University of Berlin, and later to University of Strasbourg, where he received his Ph.D in 1883. He went on to study chemistry in Munich and physiology in Tübingen with Wilhelm Pfeffer. In 1885 he embarked on a 4-year expedition to Southern and Southeastern Asia, ending in Australia in 1889. Warburg's cremated remains were brought to Israel and buried at Kibbutz Degania in 1940. Zionism and scientific career In 1911 Warburg was elected president of the Zionis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gynoecium
Gynoecium (; ) is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of (one or more) ''pistils'' and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the "female" portion of the flower, although rather than directly producing female gametes (i.e. egg cells), the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells. The term gynoecium is also used by botanists to refer to a cluster of archegonia and any associated modified leaves or stems present on a gametophyte shoot in mosses, liverworts, and hornworts. The corresponding terms for the male parts of those plants are clusters of antheridia within the androecium. Flowers that bear a gynoecium but no stamens are called ''pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Described In 1891
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 sometime ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of The Solomon Islands (archipelago)
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of New Guinea
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goniothalamus
''Goniothalamus'' is one of the largest palaeotropical genera of plant in family Annonaceae. Iban people beliefs It is believed by the Iban people that when burnt it repels mosquitoes because of its strong scent and thick smoke it creates. It is also believed to repel evil spirits, it is mostly burned during the night and on days where it is both hot and rainy. Species list It contains the following species (divided according to Floristic Region): Fijian Region ( Fiji and New Hebrides) * ''Goniothalamus monospermus'' (A.Gray) R.M.K.Saunders Indian Region (India and Sri Lanka) * ''Goniothalamus gardneri'' Hook.f. & Thomson * ''Goniothalamus hookeri'' Thwaites * ''Goniothalamus rhynchantherus'' Dunn * ''Goniothalamus salicina'' Hook.f. & Thomson * ''Goniothalamus simonsii'' Hook.f. & Thomson * ''Goniothalamus thwaitesii'' Hook.f. & Thomson * ''Goniothalamus wynaadensis'' Bedd. * ''Goniothalamus meeboldii'' Craib Indochinese Region (South China extending into North Vietnam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram Positive
In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bacteria take up the crystal violet stain used in the test, and then appear to be purple-coloured when seen through an optical microscope. This is because the thick peptidoglycan layer in the bacterial cell wall retains the stain after it is washed away from the rest of the sample, in the decolorization stage of the test. Conversely, gram-negative bacteria cannot retain the violet stain after the decolorization step; alcohol used in this stage degrades the outer membrane of gram-negative cells, making the cell wall more porous and incapable of retaining the crystal violet stain. Their peptidoglycan layer is much thinner and sandwiched between an inner cell membrane and a bacterial outer membrane, causing them to take up the counterstain (s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gram Negative
The gram (originally gramme; SI unit symbol g) is a unit of mass in the International System of Units (SI) equal to one one thousandth of a kilogram. Originally defined as of 1795 as "the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre the_temperature_of_Melting_point.html" "title="Melting_point_of_water.html" ;"title="Cubic_centimetre.html" ;"title=" Cubic centimetre">cm3], and at Melting point of water">the temperature of Melting point">melting ice", the defining temperature (~0 °C) was later changed to 4 °C, the temperature of maximum density of water. However, by the late 19th century, there was an effort to make the Base unit (measurement), base unit the kilogram and the gram a derived unit. In 1960, the new International System of Units defined a ''gram'' as one one-thousandth of a kilogram (i.e., one gram is Scientific notation, 1×10−3 kg). The kilogram, as of 2019, is defined by the International Bur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antibacterial
An antibiotic is a type of antimicrobial substance active against bacteria. It is the most important type of antibacterial agent for fighting bacterial infections, and antibiotic medications are widely used in the treatment and prevention of such infections. They may either kill or inhibit the growth of bacteria. A limited number of antibiotics also possess antiprotozoal activity. Antibiotics are not effective against viruses such as the common cold or influenza; drugs which inhibit viruses are termed antiviral drugs or antivirals rather than antibiotics. Sometimes, the term ''antibiotic''—literally "opposing life", from the Greek roots ἀντι ''anti'', "against" and βίος ''bios'', "life"—is broadly used to refer to any substance used against microbes, but in the usual medical usage, antibiotics (such as penicillin) are those produced naturally (by one microorganism fighting another), whereas non-antibiotic antibacterials (such as sulfonamides and antiseptics) ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovule
In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: the ''integument'', forming its outer layer, the ''nucellus'' (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center. The female gametophyte — specifically termed a ''megagametophyte''— is also called the ''embryo sac'' in angiosperms. The megagametophyte produces an egg cell for the purpose of fertilization. The ovule is a small structure present in the ovary. It is attached to the placenta by a stalk called a funicle. The funicle provides nourishment to the ovule. Location within the plant In flowering plants, the ovule is located inside the portion of the flower called the gynoecium. The ovary of the gynoecium produces one or more ovules and ultimately becomes the fruit wall. Ovules are attached to the placenta in the ovary through a stalk-like structure known as a ''funiculus'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepal
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined by Noël Martin Joseph de Necker in 1790, and derived . Collectively the sepals are called the calyx (plural calyces), the outermost whorl of parts that form a flower. The word ''calyx'' was adopted from the Latin ,Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 not to be confused with 'cup, goblet'. ''Calyx'' is derived from Greek 'bud, calyx, husk, wrapping' ( Sanskrit 'bud'), while is derived from Greek 'cup, goblet', and the words have been used interchangeably in botanical Latin. After flowering, most plants have no more use for the calyx which withers or becomes vestigial. Some plants retain a thorny calyx, either dried or live, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacob Gijsbert Boerlage
Jacob Gijsbert Boerlage (18 November 1849 – 25 September 1900) was a Dutch botanist, who worked principally at the National Herbarium in Brussels. Life Boerlage was born in Uithoorn, in the Netherlands on 18 November 1849. He received his doctoral degree (1875) from Leiden University. Initially he worked as a teacher in the Hogere Burgerschool in Amsterdam and Dordrecht. In 1879 he began working at the National Herbarium in Brussels which in 1999 merged with National Herbarium of the Netherlands based in Leiden. In 1880 he became the herbarium's Curator. He married shortly after becoming Curator and was later appointed as deputy director. In 1896 he became the deputy director of the Bogor Botanical Gardens (then called the Buitenzorg Botanical Gardens) in Indonesia. He died while on a scientific expedition to the coast of Ternate. He was elected corresponding member of the Royal Netherlands Academy of Arts and Sciences in 1900. Legacy He is the authority for at least ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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