|
Rebutia Einsteinii 1
''Rebutia'' is a genus of flowering plants in the family cactus, Cactaceae, native to Bolivia and Argentina. The limits of the genus have varied widely, depending on whether genera such as ''Aylostera'' and ''Weingartia'' are included or treated separately. , Plants of the World Online accepted only three species of ''Rebutia''. A very large number of plants that have been treated in cultivation as species of ''Rebutia'' are now generally regarded as varieties, forms or synonyms of a much smaller number of species, or have been transferred to other genera. Plants treated as ''Rebutia'' are generally small, colorful cacti, globular in form, which freely produce flowers that are relatively large in relation to the body. They have no distinctive ribs, but do have regularly arranged small tubercles. They are considered fairly easy to grow and they may produce large quantities of seeds that germinate freely around the parent plant. Taxonomy The genus was designated in 1895 by Karl Mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebutia Minuscula
''Rebutia minuscula'' is a species of cactus from South America found in northern Argentina and Bolivia., p. 605 It is the type (biology), type species of the genus ''Rebutia''. As its synonym ''Rebutia senilis'' it has gained the Royal Horticultural Society's Award of Garden Merit. Its cultivars 'Krainziana', 'Marsoneri' and 'Violaciflora' are also listed as having gained the Award of Garden Merit. The status of the species of ''Rebutia'' is currently uncertain; indeed the genus as defined by Anderson (2001) has been shown to be Polyphyly, polyphyletic. Anderson describes ''R. minuscula'' as consisting of globe-shaped stems with a diameter of up to , forming large clusters. The stem has 16–20 ribs with small but distinct tubercles ("bumps"). Each areole produces 25–30 fine whitish spines, long. As in other species of ''Rebutia'', the flowers are not produced at the top of the stem, but from around the base. They are red, up to long. Other authorities include synonyms such a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Argentina
The environment of Argentina is highly biodiverse. Biodiversity Flora Subtropical plants dominate the Gran Chaco in the north, with the '' Dalbergia'' genus of trees well represented by Brazilian rosewood and the quebracho tree; also predominant are the wacho white and black algarrobo trees ('' Prosopis alba'' and ''Prosopis nigra''). Savannah-like areas exist in the drier regions nearer the Andes. Aquatic plants thrive in the wetlands of Argentina. In central Argentina the ''humid pampas'' are a true tallgrass prairie ecosystem. In Argentina forest cover is around 10% of the total land area, equivalent to 28,573,000 hectares (ha) of forest in 2020, down from 35,204,000 ha in 1990. In 2020, naturally regenerating forest covered 27,137,000 ha and planted forest covered 1,436,000 ha. Of the naturally regenerating forest 0% was reported to be primary forest (consisting of native tree species with no clearly visible indications of human activity) and around 7% o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cacti Of South America
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] |
Rebutia
''Rebutia'' is a genus of flowering plants in the family Cactaceae, native to Bolivia and Argentina. The limits of the genus have varied widely, depending on whether genera such as ''Aylostera'' and ''Weingartia'' are included or treated separately. , Plants of the World Online accepted only three species of ''Rebutia''. A very large number of plants that have been treated in cultivation as species of ''Rebutia'' are now generally regarded as varieties, forms or synonyms of a much smaller number of species, or have been transferred to other genera. Plants treated as ''Rebutia'' are generally small, colorful cacti, globular in form, which freely produce flowers that are relatively large in relation to the body. They have no distinctive ribs, but do have regularly arranged small tubercles. They are considered fairly easy to grow and they may produce large quantities of seeds that germinate freely around the parent plant. Taxonomy The genus was designated in 1895 by Karl Moritz Schu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebutia Padcayensis
''Rebutia padcayensis'' is a species of ''Rebutia'' found in Bolivia and Argentina. Description ''Rebutia padcayensis'' has a sprouting growth habit, featuring depressed, spherical bodies that are green to gray-green in color. The bodies can grow up to 2.5 cm tall and 4 cm in diameter. Little is known about the roots. The plant has 14 to 17 distinct ribs, each with areole In botany, areoles are small light- to dark-colored bumps on cactus, cacti out of which grow clusters of Thorns, spines, and prickles, spines. Areoles are important diagnostic features of cactus, cacti, and identify them as a family distinct fr ...s that are whitish to brown. Occasionally, a central spine is present, while the 7 to 15 peripheral spines are light yellow with brown tips, turning gray with age. These spines range from 3 to 20 mm in length. The flowers are red with a white throat, orange, or yellow, measuring 3 to 4.5 cm long and wide. The pericarpel and flower tube are mostly bare, with only 1 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aylostera (Rebutia) Padcayensis (5734625098)
''Aylostera'', is a genus of cactus, native to central Bolivia and north western Argentina. ''Aylostera'' was formerly sunk into a broadly circumscribed genus ''Rebutia'', but molecular phylogenetic studies from 2007 onwards showed that when defined in this way, ''Rebutia'' was not monophyletic, leading to the resurrection of ''Aylostera''. A 2023 classification of the tribe Cereeae placed it as the only genus in the subtribe Aylosterinae. It was formerly placed in the subtribe Rebutiinae. Description ''Aylostera'' species are small cacti with globular stems. The stems may or may not have ribs; this feature can vary even within a species. Their flowers are of various colours. A key feature that distinguishes ''Aylostera'' from ''Rebutia'' is that the pericarpels and receptacles (which together form a structure that is often referred to as the 'flower tube') are hairy, rather than glabrous. Taxonomy The genus ''Aylostera'' was erected by Carlo Luigi Spegazzini in 1923. A histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebutia Minuscula (491293348)
''Rebutia minuscula'' is a species of cactus from South America found in northern Argentina and Bolivia., p. 605 It is the type species of the genus ''Rebutia''. As its synonym ''Rebutia senilis'' it has gained the Royal Horticultural Society's Award of Garden Merit. Its cultivars 'Krainziana', 'Marsoneri' and 'Violaciflora' are also listed as having gained the Award of Garden Merit. The status of the species of ''Rebutia'' is currently uncertain; indeed the genus as defined by Anderson (2001) has been shown to be polyphyletic. Anderson describes ''R. minuscula'' as consisting of globe-shaped stems with a diameter of up to , forming large clusters. The stem has 16–20 ribs with small but distinct tubercles ("bumps"). Each areole produces 25–30 fine whitish spines, long. As in other species of ''Rebutia'', the flowers are not produced at the top of the stem, but from around the base. They are red, up to long. Other authorities include synonyms such as ''R.marsoneri'', with yel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebutia Fabrisii
''Rebutia fabrisii'' is a species of ''Rebutia'' found in Argentina. Description ''Rebutia fabrisii'' is a clustered cactus with globose stems that measure 1 to 2 centimeters in diameter and have fibrous roots. Its 15 spiral ribs are divided into humps, with almost circular areoles that range in color from white to yellow. The approximately 30 spines, which are 4 to 8 millimeters long, are difficult to distinguish as central or radial spines. The flowers are red, orange, or yellow, measuring up to 3 centimeters in length and diameter. File:仙人掌-子孫球屬 Rebutia fabrisii v aureiflora -新加坡濱海灣花園 Gardens by the Bay, Singapore- (24601154730).jpg, Plant File:Rebutia fabrisii 1.jpg, Orange flower form Distribution This species is commonly found in northern Argentina, specifically in the province of Jujuy San Salvador de Jujuy (), commonly known as Jujuy and locally often referred to as San Salvador, is the capital and largest city of Jujuy Province in northwes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebutia Fabrisii Aureiflora 1
''Rebutia'' is a genus of flowering plants in the family Cactaceae, native to Bolivia and Argentina. The limits of the genus have varied widely, depending on whether genera such as ''Aylostera'' and ''Weingartia'' are included or treated separately. , Plants of the World Online accepted only three species of ''Rebutia''. A very large number of plants that have been treated in cultivation as species of ''Rebutia'' are now generally regarded as varieties, forms or synonyms of a much smaller number of species, or have been transferred to other genera. Plants treated as ''Rebutia'' are generally small, colorful cacti, globular in form, which freely produce flowers that are relatively large in relation to the body. They have no distinctive ribs, but do have regularly arranged small tubercles. They are considered fairly easy to grow and they may produce large quantities of seeds that germinate freely around the parent plant. Taxonomy The genus was designated in 1895 by Karl Moritz Schu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Browningia Candelaris
''Browningia candelaris'' is a species of cactus from northern Chile and southern Peru. It has a distinctive growth habit, with a straight spiny trunk topped by more-or-less spineless thinner branches. In some places, the long-term survival of local populations may be threatened by grazing, which destroys seedlings., pp. 134–135 Description ''Browningia candelaris'' has a tree-like habit of growth, reaching a height of up to . When mature, it has a distinct unbranched trunk with a diameter of up to , which is densely covered with straight brown spines, long. Mauseth found spines of this species up to 10.2 inches (25.5 centimeters) in length. Above the trunk the plant has a crown of branching thinner stems, which may be entirely spineless or bear spines reduced to a few bristles. All the stems have about 50 ribs. The white flowers are tubular, long and are followed by fleshy fruits, yellow when ripe and up to long. The fruits are edible. Systematics The species was first d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladogram
A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tree, evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
