|
Lathraea
''Lathraea'' (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae. The toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy colourless leaves, which are bent over so as to hide the under surface; irregular cavities communicating with the exterior are formed in the thickness of the leaf. On the inner walls of these chambers are stalked hairs, which when stimulated by the touch of an insect send out delicate filaments by means of which the insect is killed and digested. Etymology The genus name ''Lathraea'' derives from the ancient greek (), meaning "clandestine", which is a reference to the fact that it is inconspicuous until it flowers. Phylogeny The phylogeny of the genera of Rhinanthea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Japonica
''Lathraea'' (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae. The toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy colourless leaves, which are bent over so as to hide the under surface; irregular cavities communicating with the exterior are formed in the thickness of the leaf. On the inner walls of these chambers are stalked hairs, which when stimulated by the touch of an insect send out delicate filaments by means of which the insect is killed and digested. Etymology The genus name ''Lathraea'' derives from the ancient greek (), meaning "clandestine", which is a reference to the fact that it is inconspicuous until it flowers. Phylogeny The phylogeny of the genera of Rhinanthea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Purpurea
''Lathraea'' (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae. The toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy colourless leaves, which are bent over so as to hide the under surface; irregular cavities communicating with the exterior are formed in the thickness of the leaf. On the inner walls of these chambers are stalked hairs, which when stimulated by the touch of an insect send out delicate filaments by means of which the insect is killed and digested. Etymology The genus name ''Lathraea'' derives from the ancient greek (), meaning "clandestine", which is a reference to the fact that it is inconspicuous until it flowers. Phylogeny The phylogeny of the genera of Rhinanthea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Rhodopea
''Lathraea'' (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae. The toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy colourless leaves, which are bent over so as to hide the under surface; irregular cavities communicating with the exterior are formed in the thickness of the leaf. On the inner walls of these chambers are stalked hairs, which when stimulated by the touch of an insect send out delicate filaments by means of which the insect is killed and digested. Etymology The genus name ''Lathraea'' derives from the ancient greek (), meaning "clandestine", which is a reference to the fact that it is inconspicuous until it flowers. Phylogeny The phylogeny of the genera of Rhinanthea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Rhodopaea
''Lathraea'' (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae. The toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy colourless leaves, which are bent over so as to hide the under surface; irregular cavities communicating with the exterior are formed in the thickness of the leaf. On the inner walls of these chambers are stalked hairs, which when stimulated by the touch of an insect send out delicate filaments by means of which the insect is killed and digested. Etymology The genus name ''Lathraea'' derives from the ancient greek (), meaning "clandestine", which is a reference to the fact that it is inconspicuous until it flowers. Phylogeny The phylogeny of the genera of Rhinanthea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Clandestina 040603w
''Lathraea'' (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae. The toothwort is a protocarnivorous plant. Most of the plant consists of a branched whitish underground stem closely covered with thick fleshy colourless leaves, which are bent over so as to hide the under surface; irregular cavities communicating with the exterior are formed in the thickness of the leaf. On the inner walls of these chambers are stalked hairs, which when stimulated by the touch of an insect send out delicate filaments by means of which the insect is killed and digested. Etymology The genus name ''Lathraea'' derives from the ancient greek (), meaning "clandestine", which is a reference to the fact that it is inconspicuous until it flowers. Phylogeny The phylogeny of the genera of Rhinanthea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Clandestina
''Lathraea clandestina'', the purple toothwort also known as ''clandestine'' in France, is a parasitic plant species in the flowering plant family Orobanchaceae. It is native to western Europe. Description ''Lathraea clandestina'' is a holoparasite that has neither leaves nor chlorophyll and draws its food from the roots of its hosts via suckers known as haustoria. The subterranean part, which can weigh several kilograms, consists of white stems covered with fleshy scales. The flowers are 40 to 50 mm, with long pedicels; they appear near to the ground in April - May. The normal colour of the flowers is purple or purplish-violet, but rarely colonies with paler, pink or even wholly white flowers may be encountered. Mature fruits can project their 4 to 5 large seeds some distance into the surrounding area. The plant then disappears from the surface until the following spring. Seedlings grown from seed will take about ten years to produce their first flowers. The total abse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lathraea Squamaria
''Lathraea squamaria'', the common toothwort, is a species of flowering plant in the family Orobanchaceae. It is widely distributed in Europe and also occurs in Turkey. It is parasitic on the roots of hazel and alder, and occasionally other trees, and represents the second occasion on which a member of the family Orobanchaceae lost the ability to photosynthesize and became parasitic. It occurs in shady places such as deciduous woodland and hedge sides. The plant consists of a branched whitish underground stem closely covered with thick, fleshy, colourless leaves, which are bent over so as to hide under the surface. The only portions that appear above ground in April to May are the short flower-bearing shoots, which bear a spike of two-lipped dull purple flowers, but is also able to produce cleistogamic underground flowers which fertilise themselves. It is also able to regenerate from broken fragments of the underground stem. Description Toothwort is a perennial plant producing c ... [...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] |
Orobanchaceae
Orobanchaceae, the broomrapes, is a family of mostly parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera (e.g., ''Pedicularis'', ''Rhinanthus'', ''Striga'') were formerly included in the family Scrophulariaceae ''sensu lato''. With its new circumscription, Orobanchaceae forms a distinct, monophyletic family. From a phylogenetic perspective, it is defined as the largest crown clade containing '' Orobanche major'' and relatives, but neither ''Paulownia tomentosa'' nor ''Phryma leptostachya'' nor '' Mazus japonicus''. The Orobanchaceae are annual herbs or perennial herbs or shrubs, and most (all except ''Lindenbergia'', ''Rehmannia'' and ''Triaenophora'') are parasitic on the roots of other plants—either holoparasitic or hemiparasitic (fully or partly parasitic). The holoparasitic species lack chlorophyll and therefore cannot perform photosynthesis. Description Orobanchaceae is the largest of the 20–28 dicot fami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinanthus
''Rhinanthus'' is a genus of annual hemiparasitic herbaceous plants in the family Orobanchaceae, formerly classified in the family Scrophulariaceae. Its species are commonly known as rattles. The genus consists of about 30 to 40 species found in Europe, northern Asia, and North America, with the greatest species diversity (28 species) in Europe. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Rhinanthus'' is the sister genus to ''Lathraea'', and then to ''Rhynchocorys''. These three genera share phylogenetic affinities with members of the core Rhinantheae: ''Bartsia'', ''Euphrasia'', '' Tozzia'', ''Hedbergia'', '' Bellardia'', and ''Odontites''. ''Melampyrum ''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtai ...'' appears as a more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melampyrum
''Melampyrum'' is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtaining water and nutrients from host plants, though they are able to survive on their own without parasitising other plants.Kim, K. and S. Yun. (2012)A new species of ''Melampyrum'' (Orobanchaceae) from southern Korea.''Phytotaxa'' 42 48-50. ''Melampyrum'' species are used as food plants by the larvae of some Lepidoptera species, including the mouse moth (''Amphipyra tragopoginis''). Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Melampyrum'' appears as a distant relative of other genera of Rhinantheae. It is the sister group of two clades: (i) ''Rhynchocorys'', ''Lathraea'', and ''Rhinanthus'' ; and (ii) the core Rhinantheae containing ''Bartsia'', ''Euphrasia'', ''Tozzia'', ''Hedbergi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchocorys
''Rhynchocorys'' is a small genus of flowering plants belonging to the family Orobanchaceae, formerly classified in the family Scrophulariaceae. It is native to Europe, Morocco and Algeria. Etymology The genus name ''Rhynchocorys'' derives from the two ancient greek words (), meaning "snout, muzzle, nose", and (), meaning "helmet, head", which is a reference to the shape of the style. Phylogeny The phylogeny of the genera of Rhinantheae has been explored using molecular characters. ''Rhynchocorys'' is the sister genus to ''Lathraea'' and ''Rhinanthus''. These three genera share phylogenetic affinities with members of the core Rhinantheae: ''Bartsia'', ''Euphrasia'', ''Tozzia'', ''Hedbergia'', '' Bellardia'', and ''Odontites''. ''Melampyrum'' appears as a more distant relative. Taxonomy The genus was described in 1844 by August Heinrich Rudolf Grisebach. The type species is ''Rhynchocorys elephas''. Species According to the Plant List, 8 species are recognized in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
