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Droseraceae
Droseraceae is a family of carnivorous flowering plants, also known as the sundew family. It consists of approximately 180 species in three extant genera. Representatives of the Droseraceae are found on all continents except Antarctica. Description Droseraceae are carnivorous herbaceous plants that may be annuals or perennials. Their leaves are alternate and adaxially circinate, with at least one leaf surface containing hairs with mucilage-producing glands at the tip. Their flowers are bisexual, usually with three carpels and five sepals, petals and stamens. Their pollen grains are triporate or multiporate and released in tetrads. Despite being carnivorous, their flowers are insect-pollinated, typically with white to purple flowers that close at night. They produce small seeds that are dispersed by wind and water. Most of the members of Droseraceae are contained in the genus ''Drosera'', the sundews. Both '' Dionaea'' and '' Aldrovanda'' have only one extant spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosera
''Drosera'', which is commonly known as the sundews, is one of the largest genera of carnivorous plants, with at least 194 species. 2 volumes. These members of the family Droseraceae lure, capture, and digest insects using stalked mucilaginous glands covering their leaf surfaces. The insects are used to supplement the poor mineral nutrition of the soil in which the plants grow. Various species, which vary greatly in size and form, are native to every continent except Antarctica.McPherson, S.R. 2008. ''Glistening Carnivores''. Redfern NaturalHistory Productions Ltd., Poole. Charles Darwin performed much of the early research into ''Drosera'', engaging in a long series of experiments with Drosera rotundifolia which were the first to confirm carnivory in plants. In an 1860 letter, Darwin wrote, “…at the present moment, I care more about ''Drosera'' than the origin of all the species in the world.” Both the botanical name (from the Greek δρόσος: ''drosos'' = "dew, de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnivorous Plant
Carnivorous plants are plants that derive some or most of their nutrients from trapping and consuming animals or protozoans, typically insects and other arthropods. Carnivorous plants still generate some of their energy from photosynthesis. Carnivorous plants have adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs. They can be found on all continents except Antarctica, as well as many Pacific islands. In 1875 Charles Darwin published '' Insectivorous Plants'', the first treatise to recognize the significance of carnivory in plants, describing years of painstaking research. True carnivory is believed to have evolved independently at least 12 times in five different orders of flowering plants, and is represented by more than a dozen genera. This classification includes at least 583 species that attract, trap, and kill prey, absorbing the resulting available nutrients. Venus flytrap (''Dionaea muscipula''), p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aldrovanda Vesiculosa
''Aldrovanda vesiculosa'', commonly known as the waterwheel plant, is the sole extant taxon, extant species in the flowering plant genus ''Aldrovanda'' of the family Droseraceae. The plant captures small aquatic invertebrates using traps similar to those of the Venus flytrap. The traps are arranged in whorls around a central, free-floating stem, giving rise to the common name. This is one of the few plant species capable of rapid plant movement, rapid movement. While the genus ''Aldrovanda'' is now monotypic, up to 19 extinct species are known in the fossil record. While the species displays a degree of morphological plasticity between populations, ''A. vesiculosa'' possesses a very low genetic diversity across its entire range. ''A. vesiculosa'' has declined over the last century to only 50 confirmed extant populations worldwide. These are spread across Europe, Africa, Asia, and Australia. However, potentially Invasive species, invasive populations exist in the eastern United S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dionaea (plant)
The Venus flytrap (''Dionaea muscipula'') is a carnivorous plant native to subtropical wetlands on the East Coast of the United States in North Carolina and South Carolina. It catches its prey—chiefly insects and arachnids—with a trapping structure formed by the terminal portion of each of the plant's leaves, which is triggered by tiny hairs (called "trigger hairs" or "sensitive hairs") on their inner surfaces. When an insect or spider crawling along the leaves contacts a hair, the trap prepares to close, snapping shut only if another contact occurs within approximately twenty seconds of the first strike. Triggers may occur with a tenth of a second of contact. The requirement of redundant triggering in this mechanism serves as a safeguard against wasting energy by trapping objects with no nutritional value, and the plant will only begin digestion after five more stimuli to ensure it has caught a live bug worthy of consumption. ''Dionaea'' is a monotypic genus closely re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dionaea Muscipula
The Venus flytrap (''Dionaea muscipula'') is a carnivorous plant native to subtropical wetlands on the East Coast of the United States in North Carolina and South Carolina. It catches its prey—chiefly insects and arachnids—with a trapping structure formed by the terminal portion of each of the plant's leaves, which is triggered by tiny hairs (called "trigger hairs" or "sensitive hairs") on their inner surfaces. When an insect or spider crawling along the leaves contacts a hair, the trap prepares to close, snapping shut only if another contact occurs within approximately twenty seconds of the first strike. Triggers may occur with a tenth of a second of contact. The requirement of redundant triggering in this mechanism serves as a safeguard against wasting energy by trapping objects with no nutritional value, and the plant will only begin digestion after five more stimuli to ensure it has caught a live bug worthy of consumption. ''Dionaea'' is a monotypic genus closely relat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venus Flytrap
The Venus flytrap (''Dionaea muscipula'') is a carnivorous plant native to subtropical wetlands on the East Coast of the United States in North Carolina and South Carolina. It catches its prey—chiefly insects and arachnids—with a trapping structure formed by the terminal portion of each of the plant's leaves, which is triggered by tiny hairs (called "trigger hairs" or "sensitive hairs") on their inner surfaces. When an insect or spider crawling along the leaves contacts a hair, the trap prepares to close, snapping shut only if another contact occurs within approximately twenty seconds of the first strike. Triggers may occur with a tenth of a second of contact. The requirement of redundant triggering in this mechanism serves as a safeguard against wasting energy by trapping objects with no nutritional value, and the plant will only begin digestion after five more stimuli to ensure it has caught a live bug worthy of consumption. ''Dionaea'' is a monotypic genus closely relat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaeoaldrovanda
''Palaeoaldrovanda splendens'' is a form taxon of uncertain identity. It was for a long time thought to be an extinct angiosperm allied to the carnivorous plant genus ''Aldrovanda''. Cajsa Lisa Anderson ''et al.'' (2005) wrote: "synapomorphic characters that link the fossils seeds f ''P. splendens''to extant ''Aldrovanda'' include hard testa with an outer epidermis of palisade cells and with a smooth, strongly reflecting surface, short micropylar neck, and extruding, pointed chalazal area". However, research published by Zuzana Heřmanová and Jiří Kvaček in 2010 has cast doubt on this hypothesis. These authors identified the fossilised remains of ''Palaeoaldrovanda'' as insect eggs, writing:Heřmanová, Zuzana & Jiří Kvaček 2010Late Cretaceous ''Palaeoaldrovanda'', not seeds of a carnivorous plant, but eggs of an insect. ''Journal of the National Museum'' (Prague), Natural History Series, 179(9): 105–118. ''Palaeoaldrovanda'' is not a seed with a basic anatrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fischeripollis
''Fischeripollis'' is a genus of extinct plants in the family Droseraceae. Several species have been formally described and another has been temporarily designated ''Fischeripollis'' sp. A. ''F. halensis'' was described based on fossilised pollen from sediments in the Hale Basin of central Australia, dated to the middle-late Eocene ().Truswell, E.M. & N.G. Marchant 1986. Early Tertiary pollen of probable Droseracean affinity from central Australia. ''Spec. Pap.—Palaeontol.'' 35: 163-178. ''F. krutschei'' was discovered in Saxony, Germany. ''F. undulatus'' was also native to Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel .... References External links''Fischeripollis'' sp. A pollen [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aldrovanda
''Aldrovanda'' is a genus of carnivorous plants encompassing one extant species (''Aldrovanda vesiculosa'', the waterwheel plant) and numerous extinct taxa. The genus is named in honor of the Italian naturalist Ulisse Aldrovandi, the founder of the Botanical Garden of Bologna, Orto Botanico dell'Università di Bologna.Genaust, Helmut (1976). ''Etymologisches Wörterbuch der botanischen Pflanzennamen'' ''Aldrovanda vesiculosa'' has been reported from scattered locations in Europe, Asia, Africa, and Australia. Description The waterwheel is a small, free floating and rootless aquatic plant, with a length of about , and whorls of about in diameter. At every the plant branches, sometimes forming offshoots. An average of 12 to 19 whorls spans the length of the plant, each with about 5 to 9 leaves, each up to long. The growth is faster than terrestrial carnivorous plants, sometimes growing about a day. In temperate regions the plant goes dormant in the winter, forming turions of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drosophyllum Lusitanicum
''Drosophyllum'' ( , rarely ) is a genus of carnivorous plants containing the single species ''Drosophyllum lusitanicum'', commonly known as Portuguese sundew or dewy pine. In appearance, it is similar to the related genus ''Drosera'' (the sundews), and to the much more distantly related ''Byblis'' (the rainbow plants). Description ''Drosophyllum lusitanicum'' is a perennial carnivorous plant with woody stems at the base, short, simple or rarely branched, tortuous or erect. Leaves are basal in a dense rosette, sessile, linear, sheathed, circinate, covered with sessile and pedunculated glands. The caulines are sessile, alternate, the upper bracteiform. Flowers are on top, racemiform or corymbiform and bear five yellow petals. The flower calyx has five lobes and is late deciduous. The plant has ten stamens and introrsal anthers. Gynoecium has five carpels. It has five styles, simple; capitate stigma. Fruit is in a unilocular capsule, and is partially divided into five locules ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Droserapites
''Droserapites'' is a genus of extinction, extinct plants of somewhat uncertain Droseraceae, droseracean affinity. It is a Form classification, form taxon known only from fossil pollen. ''Droserapites'' pollen grains are united in Tetrad (meiosis), tetrads (groups of four). Individual grains are Pollen#Structure, inaperturate. The exine is mixed with dense, wikt:superposed, superposed clavate and wikt:baculate, baculate processes, whereas the wikt:sexine, sexine is wikt:reticulate, reticulate. Pollen of ''D. clavatus'' has been found in the Miocene Peliao Sandstone of Taiwan. It generally matches that of extant taxon, extant ''Drosera'' in morphology.Song, Z.-C., W.-M. Wang & F. Huang 2004. Fossil pollen records of extant angiosperms in China. ''The Botanical Review'' 70(4): 425–458. In his formal description of the genus, Tseng-Chieng Huang suggested that ''Droserapites'' may be related to ''Droseridites'' and ''Quadrisperites''. The tetrads of ''D. clavatus'' are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Droseridites
''Droseridites'' is a genus of extinct plants of possible droseracean or nepenthacean affinity. It is a form taxon known only from fossil pollen. Species assigned to this genus originate from numerous regions of the world, including Europe (from France to the Caucasus),Krutzsch, W. 1985. Über ''Nepenthes''-Pollen im europäischen Tertiär. ''Gleditschia'' 13: 89–93. India,Saxena, R.K. & G.K. Trivedi 2006. Birbal Sahni Institute of Palaeobotany, Lucknow. Egypt,Ibrahim, M.I.A. 1996. Aptian-Turonian palynology of the Ghazalat-1 Well (GTX-1), Qattara Depression, Egypt. ''Review of Palaeobotany and Palynology'' 94(1–2): 137–168. the Arabian Peninsula, and the Kerguelen Islands.Meimberg, H., A. Wistuba, P. Dittrich & G. Heubl 2001. Molecular phylogeny of Nepenthaceae based on cladistic analysis of plastid trnK intron sequence data. ''Plant Biology (Stuttgart)'' 3(2): 164–175. This genus is characterised by inaperturate and spinose pollen grains that are united in loo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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