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× Leucomoza
''× Leucomoza'' is a monotypic genus of cacti (family Cactaceae) that consist of hybrids between Denmoza and Leucostele. Its only species is ''× Leucomoza roseiflora '' a natural hybrid of ''Denmoza rhodacantha ''Denmoza'' is a monotypic genus of cacti. Its only species, ''Denmoza rhodacantha'', is native to northwest Argentina. Description ''Denmoza rhodocantha'' starts out as a globular cactus and stays that way for quite some time before growing i ...'' × '' Leucostele atacamensis''. Distribution ''× Leucomoza roseiflora'' is found in Salta, Argentina. References External links * Cereeae Cacti of South America Endemic flora of Argentina Cactoideae genera Monotypic Cactaceae genera Plant nothogenera {{cactus-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of Genus, genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical o ... [...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] |
Cactus
A cactus (: cacti, cactuses, or less commonly, cactus) is a member of the plant family Cactaceae (), a family of the order Caryophyllales comprising about 127 genera with some 1,750 known species. The word ''cactus'' derives, through Latin, from the Ancient Greek word (''káktos''), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. They are native to the Americas, ranging from Patagonia in the south to parts of western Canada in the north, with the exception of ''Rhipsalis baccifera'', which is also found in Africa and Sri Lanka. Cacti are adapted to live in very dry environments, including the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti ... [...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] |
Denmoza
''Denmoza'' is a monotypic genus of cacti. Its only species, ''Denmoza rhodacantha'', is native to northwest Argentina. Description ''Denmoza rhodocantha'' starts out as a globular cactus and stays that way for quite some time before growing into a column with a diameter of . The 30 or more ribs are high and wide, with a width of at the base. The first areoles are confluent and bear brownish-red spines, later grey. The 8 to 10 radial spines are slightly bent. The areoles from which the flowers sprout also produce a series of long brown bristles as well as long spines up to . The tubular flowers are scarlet. The fruits are spherical and contain shiny black-brown seeds with a diameter of about . File:Denmoza rhodacantha 2.jpg, Spines File:Denmoza rhodacantha - University of California Botanical Garden - DSC08839.JPG, Plant grown in University of California Botanical Garden File:Man77Denmoza rhodacantha08.jpg, Plant growing in habitat in Uspallata, Argentina Taxonomy The firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucostele
''Leucostele'' is a genus of large Cactus, cacti native species, native to Argentina, Bolivia, and Chile. Species Species of the genus ''Leucostele'' according to Plants of the World Online : References External links * * {{taxonbar, from=Q3835945 Leucostele, Cacti of South America Endemic flora of Argentina Endemic flora of Bolivia Endemic flora of Chile Cereeae genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denmoza Rhodacantha
''Denmoza'' is a monotypic genus of cacti. Its only species, ''Denmoza rhodacantha'', is native to northwest Argentina. Description ''Denmoza rhodocantha'' starts out as a globular cactus and stays that way for quite some time before growing into a column with a diameter of . The 30 or more ribs are high and wide, with a width of at the base. The first areoles are confluent and bear brownish-red spines, later grey. The 8 to 10 radial spines are slightly bent. The areoles from which the flowers sprout also produce a series of long brown bristles as well as long spines up to . The tubular flowers are scarlet. The fruits are spherical and contain shiny black-brown seeds with a diameter of about . File:Denmoza rhodacantha 2.jpg, Spines File:Denmoza rhodacantha - University of California Botanical Garden - DSC08839.JPG, Plant grown in University of California Botanical Garden File:Man77Denmoza rhodacantha08.jpg, Plant growing in habitat in Uspallata, Argentina Taxonomy The firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucostele Atacamensis
''Leucostele atacamensis'' (cardón) is a species of cactus from Chile, Argentina and Bolivia. The wood of this species can be used in building and in making furniture., pp. 257–258 Description ''Leucostele atacamensis'' has a tall columnar habit, sometimes forming branches in a candelabra shape and becoming treelike. It grows to about high, with stems to across. The stems have 20-30 ribs and areoles have a diameter of up to 2 centimeters and become larger with age with 50-100 maroon coloured spines, the longest up to long. In younger plants, the yellowish to honey-colored thorns are strongly needle-like and up to 10 centimeters (rarely up to 15 centimeters) long. The two to four (rarely up to eight) central spines cannot always be clearly distinguished from the peripheral spines. The rose-white flowers are long, open day and night, borne on the sides of the stems. The dark green fruits are densely covered with hairs, up to long; they are edible. File:Cardon Fleurs cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
