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Pinus Maximartinezii
''Pinus maximartinezii'', called Martinez pinyon, big-cone pinyon or maxipiñon, is a pine in the pinyon pine group, native to west-central Mexico. Description It is a small tree, reaching tall and with a trunk diameter of up to . The bark is brown, thick and fissured at the base of the trunk. The leaves ('needles') are in fascicles of five, slender, long, and deep green to blue-green, with stomata confined to a bright white band on the inner surfaces. The cones are ovoid, massive, long and broad and up to weight when closed, green at first, ripening yellow-brown when 26–28 months old, with very thick, woody scales, typically 30–60 fertile scales. The scales are unusual for a pine in the soft pine group (''Pinus'' subgenus ''Strobus''); most pines in that group have flexible scales. The cones open to broad when mature. The seeds are long, with a thick shell, with a vestigial wing; the seedlings have 18–24 cotyledons, the highest number reported for any plant. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations. The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. Major species assessors include BirdLife International, the Institute of Zoology (the research division of the Zoological Society of London), the World Conservation Monitoring Centre, and many Specialist Groups within th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra De Morones
The Sierra de Morones is a mountain range in west-central Mexico. Geography The Sierra de Morones extends north and south through the state of Zacatecas. The Sierra, together with the Sierra Fría to the east and the Sierra los Huicholes to the west, forms the southern end of the Sierra Madre Occidental. The Juchipila River drains the eastern slopes of the Sierra, running southwards to empty into the Río Grande de Santiago. The Bolaños River, another tributary of the Río Grande de Santiago, drains the western slope of the Sierra. The Río Grande de Santiago bounds the range on the south and southeast. Flora and fauna The Sierra de Morones is covered with pine–oak forests above 800 meters elevation. Oaks are the predominant trees, with pines becoming more common at higher elevation. Tropical dry forest occurs below 800 meters elevation.''Sierra de Morones''. Regiones Terrestres Prioritarias de México, CONABIO. Accessed 23 October 2021/ref> ''Pinus maximartinezii'' is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Durango
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. The corresponding term for animals is ''fauna'', and for fungi, it is '' funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms ''gut flora'' or ''skin flora'' for purposes of specificity. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of Mexico
Endemism is the state of a species being found only 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 also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a larger area or becomin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Plants
In September 2016, the International Union for Conservation of Nature (IUCN) listed 3654 endangered plant species. Of all evaluated plant species, 17% are listed as endangered. The IUCN also lists 99 subspecies and 101 varieties as endangered. No subpopulations of plants have been evaluated by the IUCN. For a species to be considered endangered by the IUCN it must meet certain quantitative criteria which are designed to classify taxa facing "a very high risk of extinction". An even higher risk is faced by critically endangered species, which meet the quantitative criteria for endangered species. Critically endangered plants are listed separately. There are 6147 plant species which are endangered or critically endangered. Additionally 1674 plant species (7.6% of those evaluated) are listed as data deficient, meaning there is insufficient information for a full assessment of conservation status. As these species typically have small distributions and/or populations, they are i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edible Nuts And Seeds
An edible item is any item that is safe for humans to eat. "Edible" is differentiated from " eatable" because it does not indicate how an item tastes, only whether it is fit to be eaten. Nonpoisonous items found in nature – such as some mushrooms, insects, seaweed, and so forth – are referred to as edible. Processed items that normally are not ingested but are specially manufactured to be so, like edible underwear or edible packaging, are also labeled as edible. Edible items in nature Humans eat thousands of plant species; there may be as many as 75,000 edible species of angiosperms, of which perhaps 7,000 are often eaten. Edible plants found in nature include flowers, seeds, berries, seaweed, and cacti. Being able to identify the versions of these plants that are safe to eat is an important survival skill. Some fungi, including certain types of mushrooms, are also edible. Many animals are also edible, including domesticated livestock as well as wild insects, amphibians ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. ''World Flora Online'' accepts 134 species-rank taxa (119 species and 15 nothospecies) of pines as current, with additional synonyms, and ''Plants of the World Online'' 126 species-rank taxa (113 species and 13 nothospecies), making it the largest genus among the conifers. The highest species diversity of pines is found in Mexico. Pines are widely distributed in the Northern Hemisphere; they occupy large areas of boreal forest, but are found in many habitats, including the Mediterranean Basin, and dry tropical forests in southeast Asia and Central America. Wood from pine trees is one of the most extensively used types of timber, and some pines are widely used as Christmas trees. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reaching tall. The sma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pine Nut
Pine nuts, also called piñón (), pinoli (), or pignoli, are the edible seeds of pines (family Pinaceae, genus ''Pinus''). According to the Food and Agriculture Organization, only 29 species provide edible nuts, while 20 are traded locally or internationally owing to their seed size being large enough to be worth harvesting; in other pines, the seeds are also edible but are too small to be of notable value as human food. The biggest producers of pine nuts are China, Russia, North Korea, Pakistan and Afghanistan. As pines are gymnosperms, not angiosperms (flowering plants), pine nuts are not " true nuts"; they are not botanical fruits, the seed not being enclosed in an ovary which develops into the fruit, but simply bare seeds—"gymnosperm" meaning literally "naked seed" (from and ). The similarity of pine nuts to some angiosperm fruits is an example of convergent evolution. Species and geographic spread In Asia, two species, in particular, are widely harvested: Korea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jerzy Rzedowski
Jerzy Rzedowski Rotter (27 December 1926 – March 2023) was a Polish-born Mexican botanist, whose focus was on Mexican floristics, taxonomy, and ecology. Early life and education Rzedowski was born in Lwów, Poland (now in Ukraine) to Arnold and Ernestyna (nee Rotter) Rzedowski. The family moved to Silesia when he was a child. When he was young the family was imprisoned in a concentration camp until World War II ended, when he was liberated by the Allies. They then travelled to Mexico in 1946 for a new life. Rzedowski studied for a bachelor's degree in Biology at the Instituto Politecnico Nacional, starting in 1949, and a PhD in Botany at Universidad Nacional Autónoma de México awarded in 1961. His bachelor's thesis, on the Flora of the Pedregal de San Angel, (''Vegetación del Pedregal de San Angel, Distrito Federal, Mexico'') and doctoral thesis (''Vegetación del Estado de San Luis Potosi'') led to his scientific research career. Career Rzedowski worked at Syntex in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, invasive species, and climate change. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Durango
Durango, officially the Free and Sovereign State of Durango, is one of the 31 states which make up the Political divisions of Mexico, 32 Federal Entities of Mexico, situated in the northwest portion of the country. With a population of 1,832,650, the 8th lowest of Mexico's states, Durango has Mexico's second-lowest population density, after Baja California Sur. The capital city, Durango, Durango, Victoria de Durango, is named after the first President of Mexico, Guadalupe Victoria. Geography General information The area of Durango is ; this accounts for about 6.3% of the entire territory of Mexico. It is the fourth largest state, lying at the extreme northwest of the Mexican Plateau, Central Mexican Plateau, where it meets the Sierra Madre Occidental—the highest peaks in the state. The state has an average elevation of 1,775 meters above sea level, with a mean elevation of 1,750 m in the Valleys region and 2,450 m in the Sierra region. The Durango City, city of Durango is on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zacatecas
Zacatecas, officially the Free and Sovereign State of Zacatecas, is one of the Political divisions of Mexico, 31 states of Mexico. It is divided into Municipalities of Zacatecas, 58 municipalities and its capital city is Zacatecas City, Zacatecas. It is located in north-central Mexico and is bordered by the states of Durango to the northwest, Coahuila to the north, Nayarit to the west, San Luis Potosí and Nuevo León to the east, and Jalisco, Guanajuato and Aguascalientes to the south. The state is best known for its rich deposits of silver and other minerals, its Spanish Colonial architecture, colonial architecture and its importance during the Mexican Revolution. Its main economic activities are mining, agriculture and tourism. Geography Zacatecas is located in the center-north of Mexico, and covers an area of 75,284 km2, the tenth-largest state in the country. It borders the states of Nayarit, Jalisco, Aguascalientes, San Luis Potosí, Coahuila and Durango and is divided in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
