Ralfsiaceae
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Ralfsiaceae
Ralfsiaceae is a family of brown algae in the order Ralfsiales Ralfsiales is an order of crustose brown algae Brown algae (singular: alga), comprising the class Phaeophyceae, are a large group of multicellular algae, including many seaweeds located in colder waters within the Northern Hemisphere. Brown a .... Species A 2014 classification of brown algae included the following genera: *'' Analipus'' Kjellman, 1889 *'' Endoplura'' Hollenberg, 1969 *'' Heterochordaria'' Setchell & N.L.Gardner, 1924 *'' Heteroralfsia'' H.Kawai, 1989 *'' Ralfsia'' Berkeley, 1843 See also *'' Ralfsia verrucosa'' References {{Taxonbar, from=Q3418121 Ralfsiales Brown algae families ...
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Ralfsiales
Ralfsiales is an order of crustose brown algae (class Phaeophyceae) containing two families Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideal .... References External links Algae Base Brown algae orders {{Phaeophyceae-stub ...
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Analipus
''Analipus'' is a brown algae genus in the family Ralfsiaceae. See also * List of brown algal genera This is a list of the order (biology), orders, family (biology), families and genus (biology), genera in the class Phaeophyceae — the brown algae. Discosporangiophycidae Discosporangiales Choristocarpaceae * ''Choristocarpus'' Zanardini 1860 ... References Ralfsiales Brown algae genera {{Phaeophyceae-stub ...
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Ralfsia Verrucosa
''Ralfsia verrucosa'' is a species of crustose brown seaweed in the family Ralfsiaceae. It grows intertidally in temperate waters around the world. In South Africa it is part of a mutualistic relationship with a limpet. Description ''Ralfsia verrucosa'' forms roughly circular patches that grow outwards from the centre with the central parts sometimes becoming detached from the substrate. The thallus is deep brown or blackish-brown and is about thick. It has a distinct, often pale-coloured, margin which is formed from erect filaments which are fused together and that curve upwards from other prostrate filaments. The patches of thalli are thick, some in diameter and often coalescing to form larger patches. The surface is smooth and hard. Distribution and habitat ''Ralfsia verrucosa'' is a cosmopolitan species and is found in temperate waters in northern and western Europe, Mediterranean Sea, Iceland, Greenland, Canada, New England, Argentina, round the coasts of Africa, India, ...
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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 opini ...
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Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), 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. Fo ...
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