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Isolepis Digitata
''Isolepis'' is a cosmopolitan genus of sedge containing around 70 species. ''Isolepis'' is found in cool tropical and temperate climates often in Africa and Australasia. ''Isolepis'' was first described by prolific botanist Robert Brown in 1810. In 1870 a botanist Boeckeler disbanded the genus putting most of the names under a different genus, ''Scirpus''. By the early 20th century ''Isolepis'' ceased to exist with other botanists following on from Boeckler's work. It was not until the late 20th century that ''Isolepis'' was reinstated as a distinct genus due to embryological research. See also *List of Isolepis species List of ''Isolepis'' species — a cosmopolitan genus of flowering plants in the sedge family, Cyperaceae. Species The genus ''Isolepis'' contains around 70 recognised species, they include: *'' Isolepis alpina'' Hook.f. *'' Isolepis angelic ... References Cyperaceae genera Taxa named by Carl Linnaeus {{Cyperaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isolepis Setacea
''Isolepis setacea'' ( syn. ''Scirpus setaceus'') is a species of flowering plant in the sedge family known by the common names bristle club-rush and bristleleaf bulrush. It is native to Eurasia and Africa, and possibly Australasia. It can be found in other places, including some areas in North America, where it is an introduced species. It grows in many types of moist and wet habitat, often in coastal regions, and sometimes inland. It is a perennial herb which forms mats of very thin, grooved, erect or arching stems up to about 20 centimeters tall. The leaves sheath the stem bases and have short, flat, thick blades. The inflorescence An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ... is a solitary spikelet just a few millimeters long, or a cluster of up to three spikelets. These a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in 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 continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Isolepis Species
List of ''Isolepis'' species — a cosmopolitan genus of flowering plants in the sedge family, Cyperaceae. Species The genus ''Isolepis'' contains around 70 recognised species, they include: *'' Isolepis alpina'' Hook.f. *'' Isolepis angelica'' B.L.Burtt *'' Isolepis antarctica'' (L.) Roem. & Schult. *'' Isolepis aucklandica'' Hook.f. *'' Isolepis australiensis'' (Maiden & Betche) K.L.Wilson *'' Isolepis basilaris'' Hook.f. *'' Isolepis beccarii'' (Boeckeler) Goetgh. & D.A.Simpson *'' Isolepis bicolor'' Carmich. *'' Isolepis brevicaulis'' (Levyns) J.Raynal *'' Isolepis bulbifera'' (Boeckeler) Muasya *'' Isolepis caligenis'' (V.J.Cook) Soják *'' Isolepis capensis'' Muasya *'' Isolepis carinata'' Hook. & Arn. ''ex'' Torr. *'' Isolepis cernua'' (Vahl) Roem. & Schult. *'' Isolepis congrua'' Nees *'' Isolepis costata'' Hochst. ''ex'' A.Rich. *'' Isolepis crassiuscula'' Hook.f. *'' Isolepis cyperoides'' R.Br. *'' Isolepis diabolica'' (Steud.) Schrad. *'' Isolepis digitata'' Nees '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedge
The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' with over 2,000 species. These species are widely distributed, with the centers of diversity for the group occurring in tropical Asia and tropical South America. While sedges may be found growing in almost all environments, many are associated with wetlands, or with poor soils. Ecological communities dominated by sedges are known as sedgelands or sedge meadows. Some species superficially resemble the closely related rushes and the more distantly related grasses. Features distinguishing members of the sedge family from grasses or rushes are stems with triangular cross-sections (with occasional exceptions, a notable example being the tule which has a round cross-section) and leaves that are spirally arranged in three ranks. In comparison, g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different, but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific (Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colonies) and New Zealand. Australasia found continued geopolitical attention in the earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Otto Boeckeler
Johann Otto Boeckeler (12 August 18035 March 1899) was a German apothecary- botanist of Oldenburg. He specialized in the plant family Cyperaceae (sedges), of which, he was the binomial authority of many species. He is commemorated with the genus ''Boeckeleria'' and the species ''Bulbostylis boeckeleriana''. Publications *''Botanik''; edited with Paul Friedrich August Ascherson and others (1879), part of Karl Klaus von der Decken's "Reisen in Ost-Afrika", etc. Bd. 3. Abt. 3. *''Die Cyperaceen des Königlichen Herbariums zu Berlin'', Linnaea ''Linnaea'' is a plant genus in the honeysuckle family Caprifoliaceae. Until 2013, the genus included a single species, ''Linnaea borealis''. In 2013, on the basis of molecular phylogenetic evidence, the genus was expanded to include species f ...; Vol. XXXV - XLI, (1900) - Cyperaceae of the Royal Herbariums of Berlin. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scirpus
''Scirpus'' is a genus of grass-like species in the sedge family Cyperaceae many with the common names club-rush, wood club-rush or bulrush (see also bulrush for other plant genera so-named). They mostly inhabit wetlands and damp locations. Taxonomy The taxonomy of the genus is complex, and under review by botanists. Recent studies by taxonomists of the Cyperaceae have resulted in the creation of several new genera, including the genera ''Schoenoplectus'' and ''Bolboschoenus''; others (including '' Blysmus'', ''Isolepis'', '' Nomochloa'', and ''Scirpoides'') have also been used. At one point this genus held almost 300 species, but many of the species once assigned to it have now been reassigned, and it now holds an estimated 120 species. Description ''Scirpus'' are rhizomatous perennial herbs, with 3-angled stems and flat grass-like leaves. The flowers are in clusters of small spikelets, often brown or greenish brown. Some species (e.g. ''S. lacustris'') can reach a height of 3 m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embryology
Embryology (from Greek ἔμβρυον, ''embryon'', "the unborn, embryo"; and -λογία, '' -logia'') is the branch of animal biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and fetuses. Additionally, embryology encompasses the study of congenital disorders that occur before birth, known as teratology. Early embryology was proposed by Marcello Malpighi, and known as preformationism, the theory that organisms develop from pre-existing miniature versions of themselves. Aristotle proposed the theory that is now accepted, epigenesis. Epigenesis is the idea that organisms develop from seed or egg in a sequence of steps. Modern embryology, developed from the work of Karl Ernst von Baer, though accurate observations had been made in Italy by anatomists such as Aldrovandi and Leonardo da Vinci in the Renaissance. Comparative embryology Preformationism and epigenesis As recently as the 18th century, the prevailin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isolepis
''Isolepis'' is a cosmopolitan genus of sedge containing around 70 species. ''Isolepis'' is found in cool tropical and temperate climates often in Africa and Australasia. ''Isolepis'' was first described by prolific botanist Robert Brown in 1810. In 1870 a botanist Boeckeler disbanded the genus putting most of the names under a different genus, ''Scirpus''. By the early 20th century ''Isolepis'' ceased to exist with other botanists following on from Boeckler's work. It was not until the late 20th century that ''Isolepis'' was reinstated as a distinct genus due to embryological Embryology (from Greek ἔμβρυον, ''embryon'', "the unborn, embryo"; and -λογία, ''-logia'') is the branch of animal biology that studies the prenatal development of gametes (sex cells), fertilization, and development of embryos and ... research. See also * List of Isolepis species References Cyperaceae genera Taxa named by Carl Linnaeus {{Cyperaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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