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Rheophytic
A rheophyte is a plant that lives in fast moving water currents in an environment where few other organisms can survive. Rheophytes tend to be found in currents that move at rates of one to two meters per second and that are up to 1 to 2 m deep. The amount of force produced by these currents, and the damaging debris they can carry, makes this environment inhospitable to most plants. Rheophytes are able to live in such environments because their leaves are streamlined so as put up little resistance to the flow of water. The leaves tend to be quite narrow and flexible as well. Simply being an aquatic plant with narrow leaves is not a sufficient condition for being a rheophyte. In order to prevent being uprooted by the rushing currents, rheophytes have an extremely strong wide spreading root systems. Rheophytes comprise two main groups - obligate rheophytes (or 'true' rheophytes) and facultative rheophytes. Apart from being adapted for fast currents, the survival of obligate rheophyte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tectaria Lobbii
''Tectaria'' is a genus of fern in the family Tectariaceae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Halberd fern is a common name for species in this genus. Species , the ''Checklist of Ferns and Lycophytes of the World'' recognized the following species and hybrids: *'' Tectaria acerifolia'' R.C.Moran *''Tectaria acrocarpa'' (Ching) Christenh. *'' Tectaria adenophora'' Copel. *'' Tectaria aenigma'' C.W.Chen & C.J.Rothf. *'' Tectaria aequatoriensis'' (Hieron.) C.Chr. *'' Tectaria amblyotis'' (Baker) C.Chr. * ''Tectaria'' × ''amesiana'' A.A.Eaton = ''T. coriandrifolia'' × ''T. lobata'' *'' Tectaria amphiblestra'' R.M.Tryon & A.F.Tryon *'' Tectaria andersonii'' Holttum *'' Tectaria angelicifolia'' (Schum.) Copel. *'' Tectaria angulata'' (Willd.) Copel. *'' Tectaria antioquiana'' (Baker) C.Chr. *''Tectaria aspidioides'' (C.Presl) Copel. *'' Tectaria athyrioides'' (Baker) C.Chr. *''Tectaria athyriosora'' M.G.Price *'' Tectaria atro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gosong Brevipedunculata
''Gosong'' is a genus of flowering plants in the family Araceae. It has only one currently accepted species, ''Gosong brevipedunculata'', native to Borneo. ''G.brevipedunculata'' is a rheophyte A rheophyte is a plant that lives in fast moving water currents in an environment where few other organisms can survive. Rheophytes tend to be found in currents that move at rates of one to two meters per second and that are up to 1 to 2 m deep. Th ... living alongside fastmoving streams. References GoSong Monotypic Araceae genera Endemic flora of Borneo Plants described in 2018 Aroideae {{Araceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organism
In biology, an organism () is any living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea. All types of organisms are capable of reproduction, growth and development, maintenance, and some degree of response to stimuli. Beetles, squids, tetrapods, mushrooms, and vascular plants are examples of multicellular organisms that differentiate specialized tissues and organs during development. A unicellular organism may be either a prokaryote or a eukaryote. Prokaryotes are represented by two separate domains – bacteria and archaea. Eukaryotic organisms are characterized by the presence of a membrane-bound cell nucleus and contain additional membrane-bound compartments called organelles (such as mitochondria in animals and plants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Plant
Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater). They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. A macrophyte is a plant that grows in or near water and is either emergent, submergent, or floating. In lakes and rivers macrophytes provide cover for fish, substrate for aquatic invertebrates, produce oxygen, and act as food for some fish and wildlife. Macrophytes are primary producers and are the basis of the food web for many organisms. They have a significant effect on soil chemistry and light levels as they slow down the flow of water and capture pollutants and trap sediments. Excess sediment will settle into the benthos aided by the reduction of flow rates caused by the presence of plant stems, leaves and roots. Some plants have the capability of absorbing pollutants into their tissue. Seaweeds are multicellular marine algae and, although their ecologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asplenium Obtusifolium
''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA sequences, a different chromosome count, and structural differences in the rhizomes. The type species for the genus is ''Asplenium marinum''. The most common vernacular name is spleenworts, applied to the more "typical" species. '' A. nidus'' and several similar species are called bird's-nest ferns, the ''Camptosorus'' group is known as walking ferns, and distinct names are applied to some other particularly well-known species. Taxonomy and genetics Many groups of species have been separated from ''Asplenium'' as segregate genera. These include ''Camptosorus'', ''Ceterach'', ''Phyllitis'', and ''Tarachia'', but these species can form hybrids with other ''Asplenium'' species and because of this are usually included in a more broadly defined ''Asplenium''. Some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osmunda Lancea
''Osmunda lancea'' is a fern in the genus ''Osmunda'', section ''Euosmunda''. It is found in Japan. It often hybridizes with ''Osmunda japonica ''Osmunda japonica'' (syn. ''Osmunda nipponica'' Makino), also called Asian royal fern, is a fern in the genus ''Osmunda'' native to east Asia, including Japan, China, Korea, Taiwan, and the far east of Russia on the island of Sakhalin. It is ca ...'' to produce ''O.'' × ''intermedia''. References External linkspicture Osmundales Ferns of Asia {{Polypodiidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
