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Platydesma
''Platydesma'' is a formerly recognized genus of plants in family Rutaceae. Evidence from 2009 indicated that ''Platydesma'' is nested within the genus ''Melicope'' and is sister to all Hawaiian ''Melicope'' species, and it is now placed within that genus. The other ''Melicope'' species are dioecious (individual plants only bear either male or female flowers), whereas the flowers of species formerly placed in ''Platydesma'' are hermaphroditic, suggesting a rare evolutionary reversion away from dioecy. Species included: * ''Platydesma remyi'' → ''Melicope remyi'' * ''Platydesma rostrata'' → ''Melicope rostrata ''Melicope rostrata'', synonym ''Platydesma rostrata'', is a rare species of flowering plant in the citrus family, known by the common name ''pilo kea lau li'i''. It is endemic to Hawaii, where there are only about 100 individuals remaining on isl ...'' References Historically recognized angiosperm genera Rutaceae Taxonomy articles created by Polbot {{Rutace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melicope Remyi
''Melicope remyi'', synonym ''Platydesma remyi'', the Hawai'i pilo kea, is a species of plant in the family Rutaceae. It is endemic to the island of Hawaii. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... It is on the IUCN Red List of Endangered species. References * remyi Endemic flora of Hawaii Biota of Hawaii (island) Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{Rutaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melicope Rostrata
''Melicope rostrata'', synonym ''Platydesma rostrata'', is a rare species of flowering plant in the citrus family, known by the common name ''pilo kea lau li'i''. It is endemic to Hawaii, where there are only about 100 individuals remaining on island of Kauai.USFWSDetermination of Endangered Status for 48 Species on Kauai and Designation of Critical Habitat; Final Rule.''Federal Register'' April 13, 2010. It was federally listed as an endangered species of the United States in 2010. This plant is a shrub growing one to three meters tall. The leaves are up to 42 centimeters long and white flowers occur in the leaf axils. The shrub grows in moist and wet forest habitat. It is threatened by feral pigs and other animals, and introduced species of plants.''Platydesma rostrata''. The Nature Conservanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melicope
''Melicope'' is a genus of about 240 species of shrubs and trees in the family Rutaceae, occurring from the Hawaiian Islands across the Pacific Ocean to tropical Asia, Australia and New Zealand. Plants in the genus ''Melicope'' have simple or trifoliate leaves arranged in opposite pairs, flowers arranged in panicles, with four sepals, four petals and four or eight stamens and fruit composed of up to four follicles. Description Plants in the genus ''Melicope'' have simple or trifoliate leaves arranged in opposite pairs, or sometimes whorled. The flowers are arranged in panicles and are bisexual or sometimes with functionally male- or female-only flowers. The flowers have four sepals, four petals and four or eight stamens. There are four, sometimes five, carpels fused at the base with fused styles, the stigma similar to the tip of the style. The fruit is composed of up to four follicles fused at the base, each with one or two seeds. Taxonomy The genus ''Melicope'' was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below 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 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 of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyte, Glaucophyta, and consists of the green algae and Embryophyte, Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and Fern ally, their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rutaceae
The Rutaceae is a family, commonly known as the rueRUTACEAE in BoDD – Botanical Dermatology Database or family, of s, usually placed in the . Species of the family generally have s th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dioecious
Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is biparental reproduction. Dioecy has costs, since only about half the population directly produces offspring. It is one method for excluding self-fertilization and promoting allogamy (outcrossing), and thus tends to reduce the expression of recessive deleterious mutations present in a population. Plants have several other methods of preventing self-fertilization including, for example, dichogamy, herkogamy, and self-incompatibility. Dioecy is a dimorphic sexual system, alongside gynodioecy and androdioecy. In zoology In zoology, dioecious species may be opposed to hermaphroditic species, meaning that an individual is either male or female, in which case the synonym gonochory is more often used. Most animal species are dio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Sexuality
Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction. Among all living organisms, flowers, which are the reproductive structures of angiosperms, are the most varied physically and show a correspondingly great diversity in methods of reproduction. Plants that are not flowering plants (green algae, mosses, liverworts, hornworts, ferns and gymnosperms such as conifers) also have complex interplays between morphological adaptation and environmental factors in their sexual reproduction. The breeding system, or how the sperm from one plant fertilizes the ovum of another, depends on the reproductive morphology, and is the single most important determinant of the genetic structure of nonclonal plant populations. Christian Konrad Sprengel (1793) studied the reproduction of flowering plants and for the first time it was understood that the pollination process involved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historically Recognized Angiosperm Genera
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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