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Ilex Guayusa
''Ilex guayusa'' ( or ) is a species of tree of the holly genus, native to the Amazon Rainforest. One of four known caffeinated holly trees, the leaves of the guayusa tree are harvested fresh and brewed like a tea for their stimulative effects. Description ''Ilex guayusa'' is an evergreen dioecious tree which grows tall. The leaves are ovate, elliptic, oblong or lanceolate; long, wide; with serrate or dentate margin. The flowers are small and white, arranged in thyrses. The fruit is spherical and red, in diameter. Distribution and habitat ''I. guayusa'' is native to the upper Amazonian regions of Ecuador, Peru, and southern Colombia, between of elevation. However, it has also been collected in Bolivia in 1939. It is present in evergreen or deciduous premontane forests, especially ones dominated by ''Dictyocaryum'' palms. Guayusa has been collected only rarely in the wild by botany, botanists and is known almost exclusively as a horticulture, cultivated plant (especially in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ludwig Eduard Theodor Loesener
Ludwig Eduard Theodor Lösener (23 November 1865 – 2 June 1941) was a German botanist who collected widely in the field in Germany: Amrum island (1912), the Alps, the Black Forest, Bavaria, Rügen island and County of Tyrol, Tyrol in modern Austria. His speciality was the Aquifoliaceae of the world. He also studied cultivars of ''Ilex'' species. His name is often spelled as 'Loesener' in English sources. In 1941, botanist Albert Charles Smith published a genus of flowering plants belonging to the family Celastraceae, as ''Loeseneriella'' in his honour. Works * * Abbreviation The abbreviation Loes. is used to indicate Ludwig Eduard Theodor Lösener as an authority in the description and scientific classification of plants. The International Plant Names Index lists more than 1800 taxon, taxa attributed Lösener. References External links Ludwig Eduard Theodor Loesener on Wikispecies {{DEFAULTSORT:Loesener, Ludwig Eduard Theodor Botanists with author abbreviations 1865 bir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Napo Province
Napo () is a province in Ecuador. Its capital is Tena. The province contains the Napo River. The province is low developed without much industrial presence. The thick rainforest is home to many natives that remain isolated by preference, descendants of those who fled the Spanish invasion in the Andes, and the Incas years before. In 2000, the province was the sole remaining majority-indigenous province of Ecuador, with 56.3% of the province either claiming indigenous identity or speaking an indigenous language. This province is one of the many located in Ecuador's section of the Amazon Rainforest. In Napo province are also Antisana Ecological Reserve, Sumaco Napo-Galeras National Park, and Limoncocha National Biological Reserve. Cantons The province is divided into five cantons. The following table lists each with its population at the 2001 census, its area in square kilometres (km²), and the name of the canton seat or capital. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Columbian Era
In the history of the Americas, the pre-Columbian era spans from the Migration to the New World, original settlement of North and South America in the Upper Paleolithic period through European colonization of the Americas, European colonization, which began with Christopher Columbus's voyage of 1492. Usually, the era covers the history of Indigenous peoples of the Americas, Indigenous cultures until significant influence by Europeans. This may have occurred decades or even centuries after Columbus for certain cultures. Many pre-Columbian civilizations were marked by permanent settlements, cities, agriculture, civic and monumental architecture, major earthworks (archaeology), earthworks, and Complex society, complex societal hierarchies. Some of these civilizations had long faded by the time of the first permanent European colonies (c. late 16th–early 17th centuries), and are known only through archaeology of the Americas, archaeological investigations and oral history. Other civi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baños De Agua Santa
Baños de Agua Santa (), commonly referred to as Baños, is a city in eastern Tungurahua Province of Ecuador. Baños is the second most populous city in Tungurahua, after the capital Ambato, and is a major tourist center. Baños is known as the "Gateway to the Amazon," as it is the last city still located in the mountain region before reaching the jungle and other towns that are located in the Amazon River basin. Baños is located at an elevation of 1,820 metres (5,971 feet) on the northern foothills of the Tungurahua volcano, whose activity has been characterized by frequent powerful ash explosions and lava flows that can be seen from Banos. Etymology Baños de Agua Santa (Spanish for'' Baths of Holy Water'') is named after the hot springs located around the city which have a reputation of having healing properties due to the various minerals they contain. History The city is also a Catholic religious center, as some Catholic believers say that the Virgin Mary appeared nearby ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Spruce
Richard Spruce (10 September 1817 – 28 December 1893) was an English botanist specializing in bryology. One of the great Victorian botanical explorers, Spruce spent 15 years exploring the Amazon from the Andes to its mouth, and was one of the first Europeans to visit many of the places where he collected specimens. Spruce discovered and named a number of new plant species, and corresponded with some of the leading botanists of the nineteenth century. Early life and Career Richard Spruce was born near Ganthorpe, a small village near Castle Howard in Yorkshire. After training under his father, a local schoolmaster, Spruce began a career as a tutor and then as a mathematics master at St. Peter's School, York between 1839 and 1844. Spruce started his botanical collecting in Yorkshire about 1833. In 1834, at age 16, he drew up a neatly written list of all of the plants he had found on trips around Ganthorpe, focusing on bryophytes. Arranged alphabetically and containing 40 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society Of Jesus
, image = Ihs-logo.svg , image_size = 175px , caption = ChristogramOfficial seal of the Jesuits , abbreviation = SJ , nickname = Jesuits , formation = , founders = , founding_location = , type = Order of clerics regular of pontifical right (for men) , headquarters = Generalate:Borgo S. Spirito 4, 00195 Roma-Prati, Italy , coords = , region_served = Worldwide , num_members = 14,839 members (includes 10,721 priests) as of 2020 , leader_title = Motto , leader_name = la, Ad Majorem Dei GloriamEnglish: ''For the Greater Glory of God'' , leader_title2 = Superior General , leader_name2 = Fr. Arturo Sosa, SJ , leader_title3 = Patron saints , leader_name3 = , leader_title4 = Ministry , leader_name4 = Missionary, educational, literary works , main_organ = La Civiltà Cattoli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jivaroan Peoples
The Jivaroan peoples are the indigenous peoples in the headwaters of the Marañon River and its tributaries, in northern Peru and eastern Ecuador. The tribes speak the Chicham languages. Their traditional way of life relies on gardening, and on hunting with blowguns and darts poisoned with curare. Complex spiritual beliefs are built around both of these activities. Jivaroan culture also features headhunting raids and ayahuasca ceremonies. In the 16th century, Jivaroan warriors stopped the expansion of the Inca Empire into the Amazon basin, and destroyed settlements of Spanish conquistadors. Etymology The word ''Jivaro'' is likely a corruption of xivar, a word that means ''people'' in the Shuar Chicham language. During the Spanish colonial period, "Jivaros" were viewed as the antithesis of civilized. The word Jíbaro thus entered the Spanish language; in Ecuador it is highly pejorative and signifies "savage"; outside of Ecuador, especially in Mexico and Jíbaro in Puerto Rico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andes
The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S latitude), and has an average height of about . The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano plateau is the world's second-highest after the Tibetan plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes. The Andes Mountains are the highest m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Understory
In forestry and ecology, understory (American English), or understorey (Commonwealth English), 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 deciduous forests, many understory plants start into growth earlier in the year than the canopy trees, to make use of the greater availability of light at that particular time of year. A gap in the canopy caused by the death of a tree stimulates the potential emergent trees into competitive growth as they grow upwards to fill the gap. These trees tend to have straight trunks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basal Shoot
Basal shoots, root sprouts, adventitious shoots, and suckers are words for various kinds of shoots that grow from adventitious buds on the base of a tree or shrub, or from adventitious buds on its roots. Shoots that grow from buds on the base of a tree or shrub are called basal shoots; these are distinguished from shoots that grow from adventitious buds on the roots of a tree or shrub, which may be called root sprouts or suckers. A plant that produces root sprouts or runners is described as surculose. Water sprouts produced by adventitious buds may occur on the above-ground stem, branches or both of trees and shrubs. Suckers are shoots arising underground from the roots some distance from the base of a tree or shrub. In botany and ecology In botany, a root sprout or sucker is a severable plant that grows not from a seed but from the meristem of a root at the base of or a certain distance from the original tree or shrub. Root sprouts may emerge a substantial distance from the ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Reproductive Morphology
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] |
Cation-exchange Capacity
Cation-exchange capacity (CEC) is a measure of how many cations can be retained on soil particle surfaces. Negative charges on the surfaces of soil particles bind positively-charged atoms or molecules (cations), but allow these to exchange with other positively charged particles in the surrounding soil water. This is one of the ways that solid materials in soil alter the chemistry of the soil. CEC affects many aspects of soil chemistry, and is used as a measure of soil fertility, as it indicates the capacity of the soil to retain several nutrients (e.g. K+, NH4+, Ca2+) in plant-available form. It also indicates the capacity to retain pollutant cations (e.g. Pb2+). Definition and principles Cation-exchange capacity is defined as the amount of positive charge that can be exchanged per mass of soil, usually measured in cmolc/kg. Some texts use the older, equivalent units me/100g or meq/100g. CEC is measured in moles of electric charge, so a cation-exchange capacity of 10 cmolc/kg coul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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