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Zamia Splendens
''Zamia splendens'' is a species of cycad plant in the family Zamiaceae found in tropical rainforests in southern Mexico. Described in 1984, it was later classified as a synomyn of other ''Zamia'' species, but is now recognized as a valid species by most authorities. Etymology The specific epithet ''splendens'' refers to the very glossy leaves. Classification history ''Zamia splendens'' was described and named by Schutzman in 1984. It was placed under synomyny to '' Z. verschaffeltii'' in 1998, and under synomyny to '' Z. katzeriana'' in 2008. Pérez-Farrera et al. removed ''Z. splendens'' from synonymy with ''Z. kazeriana'' in 2016, treating both of them as valid species, and described ''Z. verschaffeltii'' as probably extinct. As of March 2025, ''Z. splendens'' is accepted as a valid species by the World List of Cycads, the World Flora Online, and Tropicos. It remains listed as a synonym of ''Z. vershaffeltii'' by the Royal Botanic Gardens, Kew. In 1998, a population of ''Zam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycad
Cycads are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, that is, individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly and live very long. Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group. Cycads are gymnosperms (naked-seeded), meaning their unfertilized seeds are open to the air to be directly fertilized by pollination, as contrasted with angiosperms, which have enclosed seeds with more complex fertilization arrangements. Cycads have very specialized pollinators, usually a specific species of beetle. Both male and female cycads bear cones (strobili), somewhat similar to conifer cones. Cycads have been reported to fix nitrogen in association ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dioecy
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 dioecious (gon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zamia Herrerae
''Zamia herrerae'' is a species of plant in the family Zamiaceae. It is found in El Salvador El Salvador (; , meaning " The Saviour"), officially the Republic of El Salvador ( es, República de El Salvador), is a country in Central America. It is bordered on the northeast by Honduras, on the northwest by Guatemala, and on the south b ..., Guatemala, Honduras, and Mexico. It is threatened by habitat loss. References Zamia, gentryi Flora of Chiapas Flora of El Salvador Flora of Guatemala Flora of Honduras Taxonomy articles created by Polbot {{Cycad-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zamia Cremnophila
''Zamia cremnophila'' is a species of plant in the family Zamiaceae. It is endemic to the state of Tabasco in Mexico, between Teapa and Tapijulapa Tapijulapa () is a community in the municipality of Tacotalpa, Tabasco. It is a mountain community ninety kilometres from the state capital of Villahermosa, named as a '' Pueblo Mágico'' (Magical Town) for its white houses with red tiles roofs alo ....Schutzman, B., Vovides, A. P., & Dehgan, B. (1988)Two new species of ''Zamia'' (Zamiaceae, Cycadales) from southern Mexico.''Botanical Gazette'', 347-360. References cremnophila Endemic flora of Mexico Flora of Tabasco Plants described in 1988 Endangered biota of Mexico Endangered plants Taxonomy articles created by Polbot {{Cycad-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zamia Purpurea
''Zamia purpurea'' is a species of plant in the family Zamiaceae. It is endemic to Mexico, where it occurs only in the states of Oaxaca and Veracruz. It grows in the understory of rainforests. It is affected by habitat destruction 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 .... References purpurea Endemic flora of Mexico Flora of Oaxaca Flora of Veracruz Critically endangered plants Endangered biota of Mexico Taxonomy articles created by Polbot {{Cycad-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zamia Grijalvensis
''Zamia grijalvensis'' is a species of cycad in the family Zamiaceae. References *Whitelock, Loran M. 2002. ''The Cycads''. Portland: Timber Press. External links * grijalvensis Flora of Mexico {{cycad-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Understory
In forestry and ecology, understory (American English), or understorey (Commonwealth English The use of the English language in current and former member countries of the Commonwealth of Nations was largely inherited from British colonisation, with some exceptions. English serves as the medium of inter-Commonwealth relations. Many ...), also known as underbrush or undergrowth, includes plant life growing beneath the forest canopy without penetrating it to any great extent, but above the forest floor. Only a small percentage of light penetrates the canopy so understory vegetation is generally shade-tolerant. The understory typically consists of trees stunted through lack of light, other small trees with low light requirements, saplings, shrubs, vines and undergrowth. Small trees such as holly and dogwood are understory specialists. In Temperate broadleaf and mixed forest, temperate deciduous forests, many understory plants start into growth earlier in the year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veracruz
Veracruz (), formally Veracruz de Ignacio de la Llave (), officially the Free and Sovereign State of Veracruz de Ignacio de la Llave ( es, Estado Libre y Soberano de Veracruz de Ignacio de la Llave), is one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. It is located in eastern Mexico and is bordered by seven states, which are Tamaulipas, San Luis Potosí, Hidalgo, Puebla, Oaxaca, Chiapas, and Tabasco. Veracruz is divided into 212 municipalities, and its capital city is Xalapa-Enríquez. Veracruz has a significant share of the coastline of the Gulf of Mexico on the east of the state. The state is noted for its mixed ethnic and indigenous populations. Its cuisine reflects the many cultural influences that have come through the state because of the importance of the port of Veracruz. In addition to the capital city, the state's largest cities include Veracruz, Coatzacoalcos, Córdoba, Minatitlán, Poza Rica, Boca Del Río and Oriz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tabasco
Tabasco (), officially the Free and Sovereign State of Tabasco ( es, Estado Libre y Soberano de Tabasco), is one of the 32 Federal Entities of Mexico. It is divided into 17 municipalities and its capital city is Villahermosa. It is located in the southeast of the country, bordering the states of Campeche to the northeast, Veracruz to the west, and Chiapas to the south and the Petén department of Guatemala to the southeast. It has a coastline to the north with the Gulf of Mexico. Most of the state is covered in rainforest as, unlike most other areas of Mexico, it has plentiful rainfall year-round. The state is also home to La Venta, the major site of the Olmec civilization, considered to be the origin of later Mesoamerican cultures. It produces significant quantities of petroleum and natural gas. Geography The state is located in the southeast of Mexico, bordering the states of Campeche, Chiapas, and Veracruz, with the Gulf of Mexico to the north and the country of Guatemal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example ''Cytisus aeolicus'' is an endemite of the Italian flora. ''Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhopalotria Furfuracea
''Rhopalotria'' is a genus of cycad weevils in the beetle family Belidae. There are about six described species in ''Rhopalotria''. Species These six species belong to the genus ''Rhopalotria'': * ''Rhopalotria dimidiata'' Chevrolat, 1878 * '' Rhopalotria furfuracea'' O'Brien & Tang, 2015 * ''Rhopalotria mollis ''Rhopalotria mollis'' is a species of cycad weevil in the beetle family Belidae Belidae is a family of weevils, called belids or primitive weevils because they have straight antennae, unlike the "true weevils" or Curculionidae which have gen ...'' (Sharp, 1890) * '' Rhopalotria slossonae'' (Schaeffer, 1905) * '' Rhopalotria slossoni'' (Schaeffer, 1905) * '' Rhopalotria vovidesi'' O'Brien & Tang, 2015 References Further reading * * * External links * Belidae Articles created by Qbugbot {{weevil-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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