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Kimnachia
''Kimnachia'' is a monotypic genus of cacti. Its only species is ''Kimnachia ramulosa'', synonym ''Pseudorhipsalis ramulosa'', which is native from southern Mexico to northern South America and also found in Jamaica. Description ''Kimnachia ramulosa'' is a shrubby plant, branching freely from the base. The stems are rounded basally, with branches that become flattened towards their tips. The branches are long and up to wide. They are reddish at first, later becoming green. The flowers are pinkish or greenish cream in colour, long and across. They are usually borne singly and hang downwards. The small whitish fruits are up to long. Taxonomy The species was first described by Joseph zu Salm-Reifferscheidt-Dyck in 1834, as ''Cereus ramulosus''. It was transferred to the genus '' Pseudorhipsalis'' in 1991. In 1993, Kimnach sank ''Pseudorhipsalis'' into ''Disocactus'' as section ''Pseudorhipsalis'', so ''Ps. ramulosa'' became ''Disocactus ramulosus''. A molecular phylog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hylocereeae
The Hylocereeae are a tribe of cacti. Most are found in the tropical forests of Central and northern South America, and are climbers or epiphytes, unlike most cacti. The tribe includes between six and eight genera in different circumscriptions. The plants known as "epiphyllum hybrids" or "epiphyllums", widely grown for their flowers, are hybrids of species within this tribe, particularly '' Disocactus'', ''Pseudorhipsalis'' and '' Selenicereus'', less often '' Epiphyllum'', in spite of the common name. Description The members of the tribe are very variable in their morphology, especially when the terrestrial ''Acanthocereus'' is included. Many species form aerial roots. The hylocereoid clade (''Selenicereus'', ''Weberocereus'' and probably ''Aporocactus'') are mostly climbing or epiphytic, and have spiny ribbed stems. The phyllocactoid clade (''Epiphyllum'', ''Disocactus'', ''Kimnachia'' and ''Pseudorhipsalis'') are mainly epiphytic, and have spineless flattened leaf-like stem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudorhipsalis Ramulosa Kz2
''Pseudorhipsalis'' is genus of cacti. This genus is often included in ''Disocactus''. It is epiphytic, many branched, and elongated with flattened, serrated cladodes. In its early life, it stands erect, but soon becomes prostrate. It produces numerous flowers. Description This genus is similar to ''Rhipsalis'' in that epiphytic species with small creamy white flowers are found. However, the flowers are different in that the ovaries and parts of the perianth are connected and the fruits have scales. Also, this genus is limited to Central America, with the exception of one species that ranges in South America. Areoles are small along the stem margin, usually at a higher level. From these areoles, new stems or flowers form. The flowers are small, short tubes or glasses - creamy white. Fruits are small berries that can be white or reddish in color. This genus is very scarce in cultivation. Species A 2017 study of the tribe Hylocereeae accepted the following species: One species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudorhipsalis
''Pseudorhipsalis'' is genus of cacti. This genus is often included in ''Disocactus''. It is epiphytic, many branched, and elongated with flattened, serrated cladodes. In its early life, it stands erect, but soon becomes prostrate. It produces numerous flowers. Description This genus is similar to ''Rhipsalis'' in that epiphytic species with small creamy white flowers are found. However, the flowers are different in that the ovaries and parts of the perianth are connected and the fruits have scales. Also, this genus is limited to Central America, with the exception of one species that ranges in South America. Areoles are small along the stem margin, usually at a higher level. From these areoles, new stems or flowers form. The flowers are small, short tubes or glasses - creamy white. Fruits are small berries that can be white or reddish in color. This genus is very scarce in cultivation. Species A 2017 study of the tribe Hylocereeae accepted the following species: One species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cactoideae Genera
The Cactoideae are the largest subfamily of the cactus family, Cactaceae. Around 80% of cactus species belong to this subfamily. , the internal classification of the family Cactaceae remained uncertain and subject to change. A classification incorporating many of the insights from the molecular studies was produced by Nyffeler and Eggli in 2010. Various revisions have been published since, e.g. to the tribe Hylocereeae and the tribe Echinocereeae. Classifications remained uncertain . Tribes and genera , the National Center for Biotechnology Information used the division of the subfamily into tribes shown below. Some revisions to the circumscriptions of the tribes are also shown. * Blossfeldieae **''Blossfeldia'' *Browningieae **''Armatocereus'' – ''Browningia'' – '' Neoraimondia'' – '' Stetsonia'' *Cacteae **''Acharagma'' – ''Ariocarpus'' – '' Astrophytum'' – ''Aztekium'' – '' Coryphantha'' – '' Cumarinia'' – ''Ech ... [...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 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. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cactus
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. 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. Although some species live in quite humid environments, most cacti live in habitats subject to at least some drought. Many live in extremely dry environments, even being found in 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 where this vital process takes place. Most species of cacti have lost true leaves, retaining only spine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, '' Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamaica
Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of Hispaniola (the island containing the countries of Haiti and the Dominican Republic); the British Overseas Territory of the Cayman Islands lies some to the north-west. Originally inhabited by the indigenous Taíno peoples, the island came under Spanish rule following the arrival of Christopher Columbus in 1494. Many of the indigenous people either were killed or died of diseases, after which the Spanish brought large numbers of African slaves to Jamaica as labourers. The island remained a possession of Spain until 1655, when England (later Great Britain) conquered it, renaming it ''Jamaica''. Under British colonial rule Jamaica became a leading sugar exporter, with a plantation economy dependent on the African slaves and later their des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Zu Salm-Reifferscheidt-Dyck
Joseph Franz Maria Anton Hubert Ignatz Fürst und Altgraf zu Salm-Reifferscheidt-Dyck (4 September 1773 at Castle Dyck near Neuss – 21 March 1861 in Nice) was a German amateur botanist and owner of Castle Dyck. Dyck was a member of an important aristocratic family that had ruled a small territory until the German mediatisation, mediatisation of small German states in the early 19th century. His wife, Constance de Salm, was a poet and miscellaneous writer. Works * ''Monographia generum Aloes et Mesembryanthemi'': ** ''Fasciculus 1'' . Arnz, Düsseldorpii [1836Digital editionby the University and State Library Düsseldorf ** ''Fasciculus 2'' . Arnz, Düsseldorpii [1836Digital editionby the University and State Library Düsseldorf ** ''Fasciculus 3'' . Arnz, Düsseldorpii [1836Digital editionby the University and State Library Düsseldorf ** ''Fasciculus 4'' . Arnz, Düsseldorpii [1836Digital editionby the University and State Library Düsseldorf References 1773 bir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
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 determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have tak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
