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Hippeastrum Iguazuanum
''Hippeastrum iguazuanum'' is a flowering perennial herbaceous bulbous plant in the family Amaryllidaceae. It is found from southern Brazil ( Parana) to Argentina (Misiones), although it has been reported in other Brazilian states. Description ''Hippeastrum iguazuanum '' is a rare member of the genus ''Hippeastrum'', considered to be part of the subgenus ''Omphalissa'' (Salisb.) Baker . It is deciduous, flowering in the early Spring (September–October). Flowers are yellow to green, with red veins and banded undulating tepals. Leaves are glaucous, and in some specimens the young leaves are dark purple. Taxonomy First described by Pierfelice Ravenna in 1971, and formally named by Dudley and Williams in 1984T.R.Dudley & M.Williams, ''Taxon'' 33: 271 (1984). Etymology The name derives from its original collection and identification by Ravenna in the Iguazú National Park in Argentina. Ecology ''Hippeastrum iguazuanum '' prefers cliff faces with dense vegetation. Culti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierfelice Ravenna
Pierfelice (Pedro Félix, Pierre Félice) Ravenna (born 1938) is a Chilean botanist of Italian Jewish origin. His research interests are mainly in the field of South American Amaryllidaceae.Ravenna P. 1974 Pierfelice Ravenna: an autobiography. Plant Life 30. (1-4): 6-10 Selected publications * 1970a. ''Nuevas especies de Amaryllidaceae''. Notic. Mens. Mus. Nac. Hist. Nat. Santiago 269 : 1-7 * 1970b. ''Contributions to South American Amaryllidaceae III''. Pl. Life 37: 73–103, figs. 18-25 * * 1972. ''Latin American Amaryllidis 1971''. Pl. Life 28: 119–127, figs. 28-30 * 1974. ''Contributions to South American Amaryllidaceae VI''. Pl. Life 30: 29-79 * 1978. ''Studies in the Alliaceae‑II (error tip. "Alliae”)''. Pl. Life 34 (2): 3-10 * * 1983. '' Catila and Onira, two new genera of South American Iridaceae''. Nordic Journal of Botany 3 ( 2): 197-205 * 1988. ''New species of South American Habranthus and Zephyranthes (Amaryllidaceae)''. Onira 1 (8): 53-56 * 2000a. ''New or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Misiones
Misiones (, ''Missions'') is one of the 23 provinces of Argentina, located in the northeastern corner of the country in the Mesopotamia region. It is surrounded by Paraguay to the northwest, Brazil to the north, east and south, and Corrientes Province of Argentina to the southwest. This was an early area of Roman Catholic missionary activity by the Society of Jesus in what was then called the Province of Paraguay, beginning in the early 17th century. In 1984 the ruins of four mission sites in Argentina were designated World Heritage Sites by UNESCO. History Indigenous peoples of various tribes lived in the area of the future province for thousands of years. At the time of European encounter, it was occupied by the Kaingang and Xokleng tribes, later followed by the Guarani tribe. The first European to visit the region, Sebastian Cabot, discovered Apipé Falls while navigating the Paraná River in December 1527. In 1541 Álvar Núñez Cabeza de Vaca reached the Iguazú Falls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulbils
A bulbil (also referred to as bulbel, bulblet, and/or pup) is a small, young plant that is reproduced vegetatively from axillary buds on the parent plant's stem or in place of a flower on an inflorescence. These young plants are clones of the parent plant that produced them—they have identical genetic material. The formation of bulbils is a form of asexual reproduction, as they can eventually go on to form new stand-alone plants. Although some bulbils meet the botanical criterion to be considered a true bulb, there are a variety of different morphological forms of bulbils, some of which are not considered to be bulbs. Hence the reason for distinction between bulbs and bulbils. For example, some bulbous plant groups, like onions and lilies, produce bulbils in the form of a secondary, small bulb. Onion and lily bulbils meet the botanical criterion to be labeled a true bulb. All bulbils produced by bulbous plants are to be considered bulbs, but not all bulbils are to be considered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Climate
A Mediterranean climate (also called a dry summer temperate climate ''Cs'') is a temperate climate sub-type, generally characterized by warm, dry summers and mild, fairly wet winters; these weather conditions are typically experienced in the majority of Mediterranean-climate regions and countries, but remain highly dependent on proximity to the ocean, altitude and geographical location. This climate type's name is in reference to the coastal regions of the Mediterranean Sea within the Mediterranean Basin, where this climate type is most prevalent. The "original" Mediterranean zone is a massive area, its western region beginning with the Iberian Peninsula in southwestern Europe and coastal regions of northern Morocco, extending eastwards across southern Europe, the Balkans, and coastal Northern Africa, before reaching a dead-end at the Levant region's coastline. Mediterranean climate zones are typically located along the western coasts of landmasses, between roughly 30 and 45 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardiness Zone
A hardiness zone is a geographic area defined as having a certain average annual minimum temperature, a factor relevant to the survival of many plants. In some systems other statistics are included in the calculations. The original and most widely used system, developed by the United States Department of Agriculture (USDA) as a rough guide for landscaping and gardening, defines 13 zones by long-term average annual extreme minimum temperatures. It has been adapted by and to other countries (such as Canada) in various forms. Unless otherwise specified, in American contexts "hardiness zone" or simply "zone" usually refers to the USDA scale. For example, a plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 °F (−1.1 °C) to 40 °F (4.4 °C). Other hardiness rating schemes have been developed as well, such as the UK Royal Horticultural Society and US Sunset Western Garden Book systems. A heat zone (s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iguazú National Park
The Iguazú National Park ( es, Parque Nacional Iguazú) is a national park of Argentina, located in the Iguazú Department, in the north of the province of Misiones, Argentine Mesopotamia. It has an area of . History The area of the park was inhabited 10,000 years ago by the hunter-gatherers of the ''Eldoradense'' culture. They were displaced around 1,000 Common Era, CE by the Guaraní, who brought new agricultural technologies, and were displaced in turn by the Spanish and Portuguese conquistadores in the 16th century, though their legacy is still alive in this area (the name of the park and the river is Guaraní ''y guasu'', "large water"). The first European to visit the zone was Álvar Núñez Cabeza de Vaca, in 1542; Jesuit missions followed in 1609. The park was created in 1934 to protect one of the greatest natural beauties of Argentina, the Iguazu Falls, surrounded by the subtropical jungle. The Iguazú National Reserve was defined by law 18.801 of 7 October 1970 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaucous
''Glaucous'' (, ) is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (''Larus hyperboreus''), glaucous-winged gull (''Larus glaucescens''), glaucous macaw (''Anodorhynchus glaucus''), and glaucous tanager (''Thraupis glaucocolpa''). The term ''glaucous'' is also used botanically as an adjective to mean "covered with a greyish, bluish, or whitish waxy coating or bloom that is easily rubbed off" (e.g. glaucous leaves). The first recorded use of ''glaucous'' as a color name in English was in the year 1671. Examples The epicuticular wax coating on mature plum fruit gives them a glaucous appearance. Another familiar example is found in the common grape genus (''Vitis vinifera''). Some cacti have a glaucous coating on their stem(s). Glaucous coatings are hydrophobic so as to prevent wetting by rain. Their waxy character serves to hinder climbing of leaves, stem or fruit by insec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisions that are permitted within a genus by adding the prefix "sub-" or in other ways as long as no confusion can result. Article 4 The secondary ranks of section and series are subordinate to subgenus. An example is ''Banksia'' subg. ''Isostylis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hippeastrum
''Hippeastrum'' () is a genus of about 90 species and over 600 hybrids and cultivars of perennial herbaceous bulbous plants. They generally have large fleshy bulbs and tall broad leaves, generally evergreen, and large red or purple flowers. ''Hippeastrum'' is a genus in the family Amaryllidaceae (subfamily Amaryllidoideae, tribe Hippeastreae, and subtribe Hippeastrineae). The name ''Hippeastrum'', given to it by William Herbert, means "knight's star", although precisely what Herbert meant by the name is not certain. For many years there was confusion among botanists over the generic names ''Amaryllis'' and ''Hippeastrum'', one result of which is that the common name amaryllis is mainly used for cultivars of this genus, often sold as indoor flowering bulbs particularly at Christmas in the northern hemisphere. By contrast the generic name ''Amaryllis'' applies to bulbs from South Africa, usually grown outdoors. The genus is native to tropical and subtropical regions of the A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
States Of Brazil
The federative units of Brazil ( pt, unidades federativas do Brasil) are subnational entities with a certain degree of autonomy (self-government, self-regulation and self-collection) and endowed with their own government and constitution, which together form the Federative Republic of Brazil. There are 26 states (') and one federal district ('). The states are generally based on historical, conventional borders which have developed over time. The states are divided into municipalities A municipality is usually a single administrative division having corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate. The term ''municipality'' may also mean the go ..., while the Federal District (Brazil), Federal District assumes the competences of both a state and a municipality. Government The government of each state of Brazil is divided into executive branch, executive, legislative branch, legislative and jud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Robert Dudley
Theodore ("Ted") Robert Dudley (1936–1994) was an American botanist, who died prematurely of a brain tumor. Education & Career Ted attended the University of Edinburgh, where he obtained a Ph.D. with the thesis ''"Taxonomic studies in the Cruciferae of the Near East".'' He worked at the Arnold Arboretum at Harvard University from 1956 until joining the United States National Arboretum in 1966 where he was a taxonomist and Curator of the herbarium. He was an authority on the holly genus (''Ilex'') as well as ''Viburnum'' and ''Alyssum''. Collections The majority of Ted's collections are housed at the United States National Arboretum Herbarium with other collections distributed around the world at institutions like the University of Reading Herbarium, the Harvard University Herbaria, and the Instituto de Botánica Darwinion de Buenos Aires. He collected extensively in Argentina, and the Antarctic, and also Turkey, Greece, Peru, Korea, and China. Many of the collection ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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