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Aneuraceae
Aneuraceae (sometimes Riccardiaceae) is a family of thallose liverworts in the order Metzgeriales. Most species are very small with narrow, branching thalli. Taxonomy Aneuraceae is the largest family in the order Metzgeriales, simple thalloid liverworts. The number of species listed is considered to be inflated because of a high level of synonomy, and might be reduced from about 300 to about 100 if the family were revised. Species are difficult to delimit because nearly all are morphologically highly variable. Genetic studies suggest that some, such as ''Aneura pinguis'', include morphologically cryptic species. A molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ... study in 2010 produced a cladogram showing the relationships among the four genera placed i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 undifferentiated. All species in the order have a small gametophyte stage and a smaller, relatively short-lived, spore-bearing stage. Although these plants are almost entirely restricted to regions with high humidity or readily available moisture, the group as a whole is widely distributed, and occurs on every continent except Antarctica. Description Members of the Metzgeriales typically are small and thin enough to be translucent, with most of the tissues only a single cell layer in thickness. Because these plants are thin and relatively undifferentiated, with little evidence of distinct tissues, the Metzgeriales are sometimes called the "simple thalloid liverworts". There is considerable diversity in vegetative structure of the Metzger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riccardia
''Riccardia'' is a plant genus in the liverwort family Aneuraceae. Species ''The Plant List'' and ''Tropicos'' recognise about 200 accepted species: A * '' Riccardia aberrans'' * '' Riccardia adglutinata'' * '' Riccardia aequicellularis'' * '' Riccardia aequitexta'' * '' Riccardia aeruginosa'' * '' Riccardia agumana'' * '' Riccardia alba'' * '' Riccardia albomarginata'' * '' Riccardia alcicornis'' * '' Riccardia algoides'' * '' Riccardia amazonica'' * '' Riccardia andina'' * '' Riccardia angustata'' * '' Riccardia anguste-alata'' * '' Riccardia angustissima'' * '' Riccardia arcuata'' * '' Riccardia aspera'' * '' Riccardia australis'' * '' Riccardia autoica'' B * '' Riccardia babindae'' * '' Riccardia barbiflora'' * '' Riccardia baumannii'' * '' Riccardia bipinnatifida'' * '' Riccardia blasioides'' * '' Riccardia bliklika'' * '' Riccardia bogotensis'' * '' Riccardia boliviensis'' * '' Riccardia bongeriana'' * '' Riccard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aneura (plant)
''Aneura'' is a genus of liverworts in the family Aneuraceae. Species The 2016 world checklist of hornworts and liverworts listed the following species, placed into three categories. ;Fully accepted *''Aneura blasioides'' *''Aneura crateriformis'' *''Aneura hirsuta'' *''Aneura marianensis'' *''Aneura maxima'' *''Aneura mirabilis'' *''Aneura novaguineensis'' *'' Aneura pinguis'' ;Insufficient knowledge *''Aneura brasiliensis'' *''Aneura cerebrata'' *'' Aneura crumii'' *''Aneura eachamensis'' *''Aneura erronea'' *''Aneura eskuchei'' *''Aneura gemmifera'' *'' Aneura gibbsiana'' *''Aneura glaucescens'' *''Aneura imbricata'' *''Aneura kaguaensis'' *'' Aneura keniae'' *'' Aneura latissima'' *'' Aneura macrostachya'' *'' Aneura novaecaledoniae'' *'' Aneura pellucida'' *'' Aneura polyantha'' *'' Aneura punctata'' *'' Aneura rodwayi'' *'' Aneura rotangicola'' *'' Aneura sharpii'' *''Aneura subcanaliculata'' ;Serious doubts as to validity *''Aneura amboinensi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marchantiophyta
The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. 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. 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 (present in many mosses) and may bear marginal cilia (very rare in mosses). Other differences are not universal for all mosses and liverworts, but the occurrence of leaves arranged in three ranks, the presence of deep lobes or segmented leaves, or a lack of clearly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aneura Pinguis
''Aneura pinguis'' is a species of liverworts belonging to the family Aneuraceae Aneuraceae (sometimes Riccardiaceae) is a family of thallose liverworts in the order Metzgeriales. Most species are very small with narrow, branching thalli. Taxonomy Aneuraceae is the largest family in the order Metzgeriales, simple thalloid .... It has a cosmopolitan distribution. References {{Taxonbar, from=Q1409249 Metzgeriales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liverwort Families
The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. 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. 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 (present in many mosses) and may bear marginal cilia (very rare in mosses). Other differences are not universal for all mosses and liverworts, but the occurrence of leaves arranged in three ranks, the presence of deep lobes or segmented leaves, or a lack of clearly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') 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". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thallose
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms were previously known as the thallophytes, a polyphyletic group of distantly related organisms. An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose. A thallus usually names the entire body of a multicellular non-moving organism in which there is no organization of the tissues into organs. Even though thalli do not have organized and distinct parts (leaves, roots, and stems) as do the vascular plants, they may have analogous structures that resemble their vascular "equivalents". The analogous structures have similar function or macroscopic structure, but different microscopic structure; for example, no thallus has vascular tissue. In exceptional cases such as the Lemnoideae, where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may follo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thallus
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or " twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms were previously known as the thallophytes, a polyphyletic group of distantly related organisms. An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose. A thallus usually names the entire body of a multicellular non-moving organism in which there is no organization of the tissues into organs. Even though thalli do not have organized and distinct parts ( leaves, roots, and stems) as do the vascular plants, they may have analogous structures that resemble their vascular "equivalents". The analogous structures have similar function or macroscopic structure, but different microscopic structure; for example, no thallus has vascular tissue. In exceptional cases such as the Lemnoid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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