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Sphaerocarpos Muccilloi
''Sphaerocarpos muccilloi'' is a species of liverwort in the family Sphaerocarpaceae. Description ''Sphaerocarpos muccilloi'' grows in pale green mats. The thallus tissue is around five cells thick towards the center of the plant, but becomes as thin as one cell towards the edges. Those cells towards the edges are square or rectangular in shape, and are 56–108 micrometers (μm) long by 30–50 μm wide. The involucre which protects the plant's inflorescence is aggregate and oval- or cylindrical-shaped. It has a length of 1–2 millimeters (mm) and the opening is 170–280 μm wide.Vianna, 58. Dioecy ''S. muccilloi'' is a Dioecy, dioecious species, which means individual plants will have either male or female reproductive organs instead of both. The female plants grow roughly in a circular shape and are about 5–8 mm long. They are lobed, and the lobes grow upwards somewhat, with many rhizoids on their undersides. The male plants are more oval-shaped and als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marchantiophyta
Liverworts are a group of non-vascular plant, non-vascular embryophyte, land plants forming the division Marchantiophyta (). They may also be referred to as hepatics. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information. The division name was derived from the genus name ''Marchantia'', named after his father by French botanist Jean Marchant. It is estimated that there are about 9000 species of liverworts. Some of the more familiar species grow as a flattened leafless thallus, but most species are leafy with a form very much like a flattened moss. Leafy species can be distinguished from the apparently similar mosses on the basis of a number of features, including their single-celled rhizoids. Leafy liverworts also differ from most (but not all) mosses in that their leaves never have a costa (botany), costa (present in many mosses) and may bear marginal cilia (botany), cilia (very rare i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population, seventh-largest by population, with over 212 million people. The country is a federation composed of 26 Federative units of Brazil, states and a Federal District (Brazil), Federal District, which hosts the capital, Brasília. List of cities in Brazil by population, Its most populous city is São Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese-speaking countries, Portuguese speakers in the world and is the only country in the Americas where Portuguese language, Portuguese is an Portuguese-speaking world, official language. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazil, coastline of . Covering roughly half of South America's land area, it Borders of Brazil, borders all other countries and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phaeoceros
''Phaeoceros'' is a genus of hornworts in the family Notothyladaceae. The genus is global in its distribution. Its name means 'yellow horn', and refers to the characteristic yellow spores that the plants produce in the horn-shaped sporophyte. The genus ''Phaeoceros'' was first recognized in 1951 by Johannes Max Proskauer. The type species is '' Phaeoceros laevis''. The genus is distinguished by having yellow spores, different chloroplast structure, relatively less frilliness of the thallus when compared to ''Anthoceros'', and a relative lack of internal cavities in ''Phaeoceros''. The yellow color of the spores is the easiest way to distinguish ''Phaeoceros'' from the common genus ''Anthoceros ''Anthoceros'' is a genus of hornworts in the family Anthocerotaceae. It is distributed globally. Species of ''Anthoceros'' are characterized by having a small to medium-sized, green thallus that is more or less lobed along the margins. Etym ...'', which produces spores that are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hornwort
Hornworts are a group of non-vascular Embryophytes (land plants) constituting the division Anthocerotophyta (). The common name refers to the elongated horn-like structure, which is the sporophyte. As in mosses and liverworts, hornworts have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information; the flattened, green plant body of a hornwort is the gametophyte stage of the plant. Hornworts may be found worldwide, though they tend to grow only in places that are damp or humid. Some species grow in large numbers as tiny weeds in the soil of gardens and cultivated fields. Large tropical and sub-tropical species of ''Dendroceros'' may be found growing on the bark of trees. The total number of species is still uncertain. While there are more than 300 published species names, the actual number could be as low as 100–150 species. Description Like all bryophytes, the dominant life phase of a hornwort is the haploid gametophyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrified Wood
Petrified wood (from Ancient Greek meaning 'rock' or 'stone'; literally 'wood turned into stone'), is the name given to a special type of ''fossilized wood'', the fossilized remains of terrestrial plant, terrestrial vegetation. ''Petrifaction'' is the result of a tree or tree-like plants having been replaced by stone via a mineralization process that often includes permineralization and replacement. The Carbon-based life, organic materials making up cell walls have been replicated with minerals (mostly silica in the form of opal, chalcedony, or quartz). In some instances, the original structure of the stem tissue may be partially retained. Unlike other plant fossils, which are typically impressions or compressions, petrified wood is a three-dimensional representation of the original organic material. The petrifaction process occurs underground, when wood becomes buried in water or volcanic ash. The presence of water reduces the availability of oxygen which inhibits aerobic dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleobotanical Sites Of Arenito Mata
Paleobotany or palaeobotany, also known as paleophytology, is the branch of botany dealing with the recovery and identification of plant fossils from geological contexts, and their use for the biological reconstruction of past environments (paleogeography), and the evolutionary history of plants, with a bearing upon the evolution of life in general. It is a component of paleontology and paleobiology. The prefix ''palaeo-'' or ''paleo-'' means "ancient, old", and is derived from the Greek adjective , . Paleobotany includes the study of land plants, as well as the study of prehistoric marine photoautotrophs such as photosynthetic algae, seaweeds or kelp. A closely related field is palynology, which is the study of fossilized and extant spores and pollen. Paleobotany is important in the reconstruction of ancient ecological and climate systems, known as paleoecology and paleoclimatology respectively. It is fundamental to the study of green plant development and evolution. Paleobota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ivoti
Ivoti is a municipality in the Brazilian state of Rio Grande do Sul, located in the Porto Alegre metropolitan area. The population is 24,690 (2020 est.) in an area of 63.15 km2. History Originally occupied by indigenous people since 12,000 years ago (known as the ''Umbu Tradition''), the area started to be explored by bandeirantes in the 18th century and later was used as a route to transport cattle. The first Europeans to settle in the area were German immigrants that arrived in the Sinos River Valley in 1824, coming from the Rhine region in southwestern Germany. The area encompassing Ivoti was originally known as Berghahnerschneiss (Bergahner's aisle) because members of the German family Berghahner were the first to settle in the area. After the provincial law number 635 from 4 November 1867, the area was officially named Bom Jardim ( Portuguese for ''Good Garden'') and constituted the third district of São Leopoldo. The name Bom Jardim, chosen because the land was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
São Leopoldo
São Leopoldo () (Portuguese for ''Saint Leopold'') is a Brazilian industrial city located in the south state of Rio Grande do Sul. Geography It occupies a total area of 103.9 km2 (around 80 km2 urban area) at ''circa'' 30 km from the State Capital, Porto Alegre. The climate is sub-tropical, with temperatures varying from -2 °C minimum at Winter to more than 40 °C maximum during summer time. Summers are fairly dry. History Established on July 25, 1824, by German immigrants, São Leopoldo is considered the cradle of German culture in Brazil, that is to say, it is the first official city designed by the national Brazilian governor to start the German plan of immigration in the country. It had, in 2006, a population of approximately 210,000. São Leopoldo is one of the 13 cities along the Rota Romântica ('Romantic Route'), a touristic scenic route that runs from the State Capital towards the Serra Gaúcha. Minority language Riograndenser Hunsrücki ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porto Alegre
Porto Alegre (, ; , ; ) is the capital and largest city of the Brazilian Federative units of Brazil, state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the List of largest cities in Brazil, 11th-most populous city in the country and the centre of Brazil's List of metropolitan areas in Brazil, fifth-largest metropolitan area, with 4.1 million inhabitants (2022). The city is the southernmost capital city of a Brazilian state. Porto Alegre was founded in 1769 by Manuel Jorge Gomes de Sepúlveda, who used the pseudonym José Marcelino de Figueiredo to hide his identity; the official date, though, is 1772 with the act signed by Immigration to Brazil, immigrants from the Azores, Portugal. The city lies on the eastern bank of the Guaíba Lake, where five rivers converge to form the Lagoa dos Patos, a giant freshwater lagoon navigable by even the largest of ships. This five-river junction has become an important alluvial port and a chief indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Locality (biology)
In biology, a type is a particular wikt:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set (mathematics), set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Critically Endangered
An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of the 157,190 species currently on the IUCN Red List, 9,760 of those are listed as critically endangered, with 1,302 being possibly extinct and 67 possibly extinct in the wild. The IUCN Red List provides the public with information regarding the conservation status of animal, fungi, and plant species. It divides various species into seven different categories of conservation that are based on habitat range, population size, habitat, threats, etc. Each category represents a different level of global extinction risk. Species that are considered to be critically endangered are placed within the "Threatened" category. As the IUCN Red List does not consider a species extinct until extensive targeted surveys have been conducted, species that a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
