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Bartsia Trixago
''Bellardia trixago'' is a species of flowering plant in the family Orobanchaceae (it has been formerly classified in the family Scrophulariaceae). The only member of the monotypic genus ''Bellardia'', it is known as trixago bartsia or Mediterranean lineseed. This plant is native to the Mediterranean Basin, but it is known in other places with similar climates, such as California and parts of Chile, where it is an introduced species and noxious weed. Etymology The genus name ''Bellardia'' is a taxonomic patronym in honor of Carlo Antonio Lodovico Bellardi (1741-1826), an Italian botanist from Piedmont. The species name ''trixago'' has two possible etymologies. * It derives from the ancient Greek word (), meaning "hair", and the Latin suffix ''ago'' used to indicate a property, and refers to the glandular-hairy characteristic of the plant. * It derives from the ancient Greek word , , or (, , or ), meaning "triple", and refers to the trilobate lower lip of the flower. It is a ... [...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] |
Teucrium
''Teucrium'' is a Cosmopolitan distribution, cosmopolitan genus of flowering plants in the family Lamiaceae, commonly known as germanders. Plants in this genus are perennial plant, perennial herbaceous plant, herbs or shrubs, with branches that are more or less square in cross-section, leaves arranged in opposite pairs, and flowers arranged in thyrses, the Petal, corolla with mostly white to cream-coloured, lobed petals. Description Plants in the genus ''Teucrium'' are perennial herbs or shrubs with four-cornered stems, often with simple hairs and Sessility (botany), sessile Gland (botany), glands. The leaves are arranged in opposite pairs, simple or with three leaflets sometimes with lobed or serrated edges. The flowers are arranged in a thyrse, sometimes in a Cyme (botany), cyme in leaf axils. The flowers have five more or less similar sepals fused at the base, and the corolla is white or cream-coloured with five lobes forming two lips. The upper lip is usually much reduced in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloroplast DNA
Chloroplast DNA (cpDNA) is the DNA located in chloroplasts, which are photosynthetic organelles located within the cells of some eukaryotic organisms. Chloroplasts, like other types of plastid, contain a genome separate from that in the cell nucleus. The existence of chloroplast DNA was identified biochemically in 1959, and confirmed by electron microscopy in 1962. The discoveries that the chloroplast contains ribosomes and performs protein synthesis revealed that the chloroplast is genetically semi-autonomous. The first complete chloroplast genome sequences were published in 1986, ''Nicotiana tabacum'' (tobacco) by Sugiura and colleagues and ''Marchantia polymorpha'' (liverwort) by Ozeki et al. Since then, a great number of chloroplast DNAs from various species have been sequenced. Molecular structure Chloroplast DNAs are circular, and are typically 120,000–170,000 base pairs long. They can have a contour length of around 30–60 micrometers, and have a mass of about 80â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear DNA
Nuclear DNA (nDNA), or nuclear deoxyribonucleic acid, is the DNA contained within each cell nucleus of a eukaryotic organism. It encodes for the majority of the genome in eukaryotes, with mitochondrial DNA and plastid DNA coding for the rest. It adheres to Mendelian inheritance, with information coming from two parents, one male and one female—rather than matrilineally (through the mother) as in mitochondrial DNA. Structure Nuclear DNA is a nucleic acid, a polymeric biomolecule or biopolymer, found in the nucleus of eukaryotic cells. Its structure is a double helix, with two strands wound around each other, a structure first described by Francis Crick and James D. Watson (1953) using data collected by Rosalind Franklin. Each strand is a long polymer chain of repeating nucleotides. Each nucleotide is composed of a five-carbon sugar, a phosphate group, and an organic base. Nucleotides are distinguished by their bases: purines, large bases that include adenine and guanine; and pyr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphrasia
''Euphrasia'', or eyebright, is a genus of about 450 species of herbaceous flowering plants in the family Orobanchaceae (formerly included in the Scrophulariaceae), with a cosmopolitan distribution. They are semi-parasitic on grasses and other plants. The common name refers to the plant's use in treating eye infections. Many species are found in alpine or sub-alpine meadows where snow is common. Flowers usually are borne terminally, are zygomorphic, and have a lower petal shaped like a lip. The most common flower colours are purple, blue-white, and violet. Some species have yellow markings on the lower petal to act as a guide to pollinating insects. Alternative names, mainly in herbalism, are ''Augentrostkraut, Euphrasiae herba, Herba Euphrasiae'' and ''Herbe d'Euphraise''. Use in herbalism and medicine The plant was known to classical herbalists, but then was not referred to until mentioned again in 1305. Nicholas Culpeper assigned it to the Zodiac sign Leo, claiming that it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedbergia
''Hedbergia'' is a monotypic genus of flowering plants, initially classified in Scrophulariaceae, and now within the broomrape family Orobanchaceae. It contains a unique species, ''Hedbergia abyssinica''. It is an afromontane genus, widespread in grasslands and scrubs of the mountains of tropical Africa, and known from Ethiopia, Zaire, Uganda, Kenya, Tanzania, Malawi, Nigeria, and Cameroons. The genus name is a taxonomic patronym honoring the Swedish botanist Karl Olov Hedberg. Description ''Hedbergia abyssinica'' is a high, very hispid perennial plant, with subsessile thick leaves, and densely crowded, white to pink or magenta flowers. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Hedbergia'' belongs to the core Rhinantheae. ''Hedbergia'' is closely related to ''Odontites'', '' Bellardia'', and ''Tozzia''. In turn, these genera share phylogenetic affinities with ''Euphrasia'', and then with ''Bartsia ''Bartsia'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tozzia
''Tozzia'' is a monotypic genus of flowering plants within the broomrape family Orobanchaceae. It contains a unique species, ''Tozzia alpina''. While the plant in its young, vegetative stage is holoparasite, it becomes hemiparasite in its flowering stage. The originality of this species is therefore to combine half and full parasitism. The range of ''Tozzia alpina'' extends from the Pyrenees and the Alps to the Balkans and the Carpathians. Description Vegetative features ''Tozzia alpina'' is a herbaceous, perennial plant, reaching heights of . The quadrangular stem is hairless in the lower part, hairy on the edges in the middle and upper part. The simple, bright green leaves are broad, ovate, serrate, with a length of 1 to 3.5 centimeters, a rounded or slightly heart-shaped basis, and a sharp upper end. Reproductive features The flowering period is from June to August. The hermaphroditic zygomorph flowers are organized into a raceme inflorescence. The bracts have a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odontites
''Odontites'' is a genus of flowering plants in the family Orobanchaceae. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Odontites'' belongs to the core Rhinantheae. It is the sister genus to ''Bellardia'', and then to ''Tozzia'' and ''Hedbergia''. These taxa are closely related to the genus ''Euphrasia''. In turn, these five genera share phylogenetic affinities with ''Bartsia''. Conservation One of the ''Odontites'' species, ''O. granatensis'', endemic to the Sierra Nevada in Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ..., was so threatened that in 1993 only 1,500 plants survived in two locations. Due to conservation efforts the plant has made a comeback, numbering over 100,000 in 2006. References Oroban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bartsia
''Bartsia'' is a genus of flowering plants in the family Orobanchaceae. Bartsia grows in damp places, such as marshes and wet meadows, in several parts of the west of England and Wales and in southwest Scotland. Etymology ''Bartsia'' was named after Johann Bartsch (Latinized as Johannes Bartsius, 1709-1738), a botanist of Königsberg. The plant was named for him by his associate Carl Linnaeus, and the genus has been sometimes spelt as ''Bartschia''. ''Starbia'', an anagram of ''Bartsia'', is another genus of Orobanchaceae, synonym of ''Alectra (plant), Alectra''. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Bartsia'' belongs to the core Rhinantheae. ''Bartsia'' sensu stricto (e.g. ''Bartsia alpina, B. alpina'') is the sister genus to ''Odontites'', ''Bellardia trixago, Bellardia'', ''Tozzia'', ''Hedbergia'', and ''Euphrasia''. Classification In 1990, the genus was revised to contain 49 species; 45 of them are endemi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parentucellia
''Parentucellia'' is a small genus of flowering plants in the family Orobanchaceae containing about four species. They are known generally as glandweeds. The genus was named for Pope Nicholas V, whose surname was Parentucelli. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Parentucellia'' belongs to the core Rhinantheae. It is closely related to the genus '' Bellardia'', and then to ''Odontites'', ''Tozzia'' and ''Hedbergia''. In turn, these genera share phylogenetic affinities with ''Euphrasia'' and ''Bartsia ''Bartsia'' is a genus of flowering plants in the family Orobanchaceae. Bartsia grows in damp places, such as marshes and wet meadows, in several parts of the west of England and Wales and in southwest Scotland. Etymology ''Bartsia'' was name ...''. Systematics Species include: *'' Parentucellia floribunda'' *'' Parentucellia latifolia'' *'' Parentucellia viscosa'' References External linksUSDA Plants: ''Pare ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinantheae
Rhinantheae is a tribe with less than 20 genera of herbaceous plants in the family Orobanchaceae. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using DNA markers. Three assemblages can be distinguished in this tribe: * ''Rhinanthus'' is the sister genus to ''Lathraea'', and then to ''Rhynchocorys''. These taxa are closely related to the core Rhinanteae. * In the core Rhinantheae, ''Odontites'' sensu lato, including ''Bornmuellerantha'' and ''Bartsiella'', is the sister genus to ''Bellardia'', including ''Parentucellia'' and ''Bartsia canescens'' + ''B. mutica''. These taxa are closely related to ''Hedbergia'' (including ''Bartsia decurva'' + ''B. longiflora'') and ''Tozzia''. In turn, these genera share phylogenetic affinities with ''Euphrasia'', and then with ''Bartsia'' sensu stricto (''Bartsia alpina''). * ''Melampyrum'' occupies an isolated, deep-branching position. The median crown age of Rhinantheae was estimated to be ca. 30 Myr. Systematics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasitic Plant
A parasitic plant is a plant that derives some or all of its nutritional requirements from another living plant. They make up about 1% of angiosperms and are found in almost every biome. All parasitic plants develop a specialized organ called the haustorium, which penetrates the host plant, connecting them to the host vasculature – either the xylem, phloem, or both. For example, plants like ''Striga'' or ''Rhinanthus'' connect only to the xylem, via xylem bridges (xylem-feeding). Alternately, plants like ''Cuscuta'' and some members of ''Orobanche'' connect to both the xylem and phloem of the host. This provides them with the ability to extract water and nutrients from the host. Parasitic plants are classified depending on the location where the parasitic plant latches onto the host (root or stem), the amount of nutrients it requires, and their photosynthetic capability. Some parasitic plants can locate their host plants by detecting volatile chemicals in the air or soil given ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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