|
Treubia Insignis
''Treubia'' is a genus of liverworts in the family Treubiaceae.Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.), ''Bryophyte Biology''. (Cambridge: Cambridge University Press). There are seven species, all of which are restricted to the southern hemisphere. Five of the species occur in Australasia and the other ('' Treubia scapanioides'') occurs in Chile. All species are dioicous, with separate male and female gametophytes. Classification Species list: * '' Treubia insignis'' K.I.Goebel * '' Treubia lacunosa'' (Colenso) Prosk. * '' Treubia lacunosoides'' T.Pfeiff., W.Frey et M.Stech * ''Treubia pygmaea ''Treubia'' is a genus of liverworts in the family Treubiaceae.Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Ritter Von Goebel
Karl Immanuel Eberhard Ritter von Goebel FRS FRSE (8 March 1855, Billigheim, Baden Germany, Baden – 9 October 1932, Munich) was a German botanist. His main fields of study were comparative functional anatomy, morphology (biology), morphology, and the developmental physiology of plants under the influence of both phylogenetic and extrinsic factors. Life Starting in 1873, Goebel studied theology and philosophy, as well as botany with Wilhelm Hofmeister, at the University of Tuebingen. In 1876 he moved to Strasbourg, where he worked with Anton de Bary, and from which he graduated in 1877 with his Ph.D. In 1878, Goebel became assistant to Julius von Sachs, and in 1880 a lecturer at the University of Würzburg. In 1881 he became first assistant to August Schenk of the University of Leipzig, then an associate professor at Strasbourg, and 1882 associate professor at the University of Rostock, where in 1884 he founded the botanical garden and a botanical institute. From 1887–1891 he ... [...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] |
Gametophyte
A gametophyte () is one of the two alternating multicellular phases in the life cycles of plants and algae. It is a haploid multicellular organism that develops from a haploid spore that has one set of chromosomes. The gametophyte is the sexual phase in the life cycle of plants and algae. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote which has a double set of chromosomes. Cell division of the zygote results in a new diploid multicellular organism, the second stage in the life cycle known as the sporophyte. The sporophyte can produce haploid spores by meiosis that on germination produce a new generation of gametophytes. Algae In some multicellular green algae ('' Ulva lactuca'' is one example), red algae and brown algae, sporophytes and gametophytes may be externally indistinguishable (isomorphic). In ''Ulva'', the gametes are isogamous, all of one size, shape and general morphology. Land plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dioicous
Dioicy () is a sexual system in non-vascular plants where archegonia (female organs) and antheridia (male organs) are produced on separate plants in the gametophyte phase. It is one of the two main sexual systems in bryophytes, the other being monoicy. Both dioicous () and monoicous gametophytes produce gametes in gametangia by mitosis rather than meiosis, so that sperm and eggs are genetically identical with their parent gametophyte. Description Dioicy promotes outcrossing. Sexual dimorphism is commonly found in dioicous species. Dioicy is correlated with reduced sporophyte production, due to spatial separation of male and female colonies, scarcity or absence of males. The term dioecy is inapplicable to bryophytes because it refers to the sexuality of vascular plant sporophytes. Nonetheless dioecy and dioicy are comparable in many respects. Etymology The words dioicous and di(o)ecious are derived from οἶκος or οἰκία and δι- (di-), twice, double. (''(o)e' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Pacific Ocean. Chile had a population of 17.5 million as of the latest census in 2017 and has a territorial area of , sharing borders with Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage to the south. The country also controls several Pacific islands, including Juan Fernández Islands, Juan Fernández, Isla Salas y Gómez, Desventuradas Islands, Desventuradas, and Easter Island, and claims about of Antarctica as the Chilean Antarctic Territory. The capital and largest city of Chile is Santiago, and the national language is Spanish language, Spanish. Conquest of Chile, Spain conquered and colonized the region in the mid-16th century, replacing Incas in Central Chile, Inca rule; however, they Arauco War ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a subregion of Oceania, comprising Australia, New Zealand (overlapping with Polynesia), and sometimes including New Guinea and surrounding islands (overlapping with Melanesia). The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific ( Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treubiaceae
Treubiaceae is a family of liverworts in the order Treubiales.Crandall-Stotler, Barbara. & Stotler, Raymond E. "Morphology and classification of the Marchantiophyta". page 63 ''in'' A. Jonathan Shaw & Bernard Goffinet (Eds.), ''Bryophyte Biology''. (Cambridge: Cambridge University Press:2000). Species are large and leafy, and were previously classified among the Metzgeriales Metzgeriales is an order of liverworts. The group is sometimes called the simple thalloid liverworts: " thalloid" because the members lack structures resembling stems or leaves, and "simple" because their tissues are thin and relatively undiff .... References * Liverwort families Treubiales {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family (, : ) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". The delineation of what constitutes a family—or whether a described family should be acknowledged—is established and decided upon by active taxonomists. There are not strict regulations for outlining or acknowledging a family, yet in the realm of plants, these classifications often rely on both the vegetative and reproductive characteristics of plant species. Taxonomists frequently hold varying perspectives on these descriptions, leading to a lack of widespread consensus within the scientific community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treubia Insignis
''Treubia'' is a genus of liverworts in the family Treubiaceae.Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.), ''Bryophyte Biology''. (Cambridge: Cambridge University Press). There are seven species, all of which are restricted to the southern hemisphere. Five of the species occur in Australasia and the other ('' Treubia scapanioides'') occurs in Chile. All species are dioicous, with separate male and female gametophytes. Classification Species list: * '' Treubia insignis'' K.I.Goebel * '' Treubia lacunosa'' (Colenso) Prosk. * '' Treubia lacunosoides'' T.Pfeiff., W.Frey et M.Stech * ''Treubia pygmaea ''Treubia'' is a genus of liverworts in the family Treubiaceae.Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Treubia Tasmanica
''Treubia'' is a genus of liverworts in the family Treubiaceae.Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.), ''Bryophyte Biology''. (Cambridge: Cambridge University Press). There are seven species, all of which are restricted to the southern hemisphere. Five of the species occur in Australasia and the other ('' Treubia scapanioides'') occurs in Chile. All species are dioicous, with separate male and female gametophytes. Classification Species list: * ''Treubia insignis'' K.I.Goebel * '' Treubia lacunosa'' (Colenso) Prosk. * '' Treubia lacunosoides'' T.Pfeiff., W.Frey et M.Stech * ''Treubia pygmaea ''Treubia'' is a genus of liverworts in the family Treubiaceae.Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
