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Haworthia Pumila
''Tulista pumila'' ("Vratjiesaalwee") is a species of ''Tulista'' succulent plant, from the Western Cape, South Africa. It was formerly placed in the genus '' Haworthia'', as ''Haworthia pumila'' or ''Haworthia maxima''. Description It is an evergreen, winter-growing succulent plant with sharp succulent leaves arranged in rosettes of 20 cm in diameter. The leaves are hard, upright, sometimes incurved and are usually covered with raised white tubercles. It is a variable species, with different populations differing in the leaf shape, colour, growth form and tubercles. It also varies according to environment, and in direct sun during the dry summer, it can assume a red colour. The leaves usually have an olive-green to brown colour. In the summer (November to December) ''Tulista pumila'' produces pink-white tubular flowers, on a tall thin inflorescence. Naming and taxonomy The eponymy of this species has been relatively complex. It was previously named ''Haworthia maxima'' or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tulista
''Tulista'' is a small genus of succulent plants endemic to South Africa. They were formerly included within the genus ''Haworthia''. Characteristics The genus is characterised by a large size (relative to other haworthias), by their stemless rosette growth form, by the yellow exudate in their non-fibrous leaves, and by their distinctive flowers with robust peduncles. Taxonomy The genus ''Haworthia'' was long considered problematic, and suspected of being polyphyletic. It was accordingly divided into three different subgenera: ''Haworthia'' (the soft, green, leafy, and often retuse species); ''Hexangulares'' (the harder, often tubercled species); ''Robustipedunculares'' (the four largest, most robust species). Several phylogenetic studies have confirmed this division, and shown that ''Haworthia'' actually comprises three clades that are only distantly related. Based on phylogenetic evidence, in 2013, Gordon Rowley revived the genus ''Tulista'', first erected by Constantine Sam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Cape
The Western Cape is a province of South Africa, situated on the south-western coast of the country. It is the fourth largest of the nine provinces with an area of , and the third most populous, with an estimated 7 million inhabitants in 2020. About two-thirds of these inhabitants live in the metropolitan area of Cape Town, which is also the provincial capital. The Western Cape was created in 1994 from part of the former Cape Province. The two largest cities are Cape Town and George. Geography The Western Cape Province is roughly L-shaped, extending north and east from the Cape of Good Hope, in the southwestern corner of South Africa. It stretches about northwards along the Atlantic coast and about eastwards along the South African south coast (Southern Indian Ocean). It is bordered on the north by the Northern Cape and on the east by the Eastern Cape. The total land area of the province is , about 10.6% of the country's total. It is roughly the size of England or the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Africa
South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and to the east and northeast by Mozambique and Eswatini. It also completely enclaves the country Lesotho. It is the southernmost country on the mainland of the Old World, and the second-most populous country located entirely south of the equator, after Tanzania. South Africa is a biodiversity hotspot, with unique biomes, plant and animal life. With over 60 million people, the country is the world's 24th-most populous nation and covers an area of . South Africa has three capital cities, with the executive, judicial and legislative branches of government based in Pretoria, Bloemfontein, and Cape Town respectively. The largest city is Johannesburg. About 80% of the population are Black South Afri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haworthia
''Haworthia'' is a large genus of small succulent plants endemic to Southern Africa (Mozambique, Namibia, Lesotho, Eswatini and South Africa). Like the aloes, they are members of the subfamily Asphodeloideae and they generally resemble miniature aloes, except in their flowers, which are distinctive in appearance. They are popular garden and container plants. Description and characteristics ''Haworthias'' are small succulent plants, forming rosettes of leaves from to exceptionally in diameter, depending on the species. These rosettes are usually stemless but in some species stems reach up to . The inflorescences of some species may exceed in height. The plants can grow solitary or can be clump-forming. Many species have firm, tough, fleshy leaves, usually dark green in colour, whereas others are softer and contain leaf windows with translucent panels through which sunlight can reach internal photosynthetic tissues. Their flowers are small, and generally white. Though ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haworthia Marginata
''Tulista marginata'' is a species of ''Tulista'' succulent plant, from the Western Cape, South Africa. Description and taxonomy It is an evergreen, winter-growing succulent plant with short, sharp leaves arranged in rosettes of 20 cm in diameter. The leaves are hard, keeled, upright, pale in colour, and can be with tubercles. In the summer (November to December), T.marginata produces pink-white flowers on a multi-branched inflorescence. ''Tulista marginata'' is a variable species, with different populations and varieties, differing in the leaf shape, colour, growth form and tubercles. It was formerly classed in the genus ''Haworthia'', within which it was one of the largest species. It was classed with the other large species ('' T.pumila'', '' T.minima'' and '' T.kingiana'') in the ''"Robustipedunculares"'' subgenus. Following recent phylogenetic studies, it has been shown that these four species in fact constitute a distinct out-group, separate from other Haworthias. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haworthia Minima
''Tulista minima'' is a species of succulent plant, from the far south of the Western Cape, South Africa. It was formerly classed in the genus ''Haworthia'', as ''Haworthia minima''. However this was not the correct name, as the name ''Haworthia minor'' in fact had priority. When the species was transferred to the new genus ''Tulista'', a combination was first published for ''Tulista minima'', which was likewise invalid. A new combination was therefore needed for ''Tulista minor'', which was accordingly published in 2018. Description It is a small evergreen succulent plant, with hard, fleshy blue-green leaves that are covered in white tubercles. It offsets readily and can form clumps. It produces white flowers with pink tips in the summer (November to December). It is a variable species, with different populations differing in the leaf shape, colour, growth form and tubercles. Popular varieties include ''T. minima'' var. ''poellnitziana'', as well as the ''opalina'' and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tulista Kingiana
''Tulista kingiana'' is a species of succulent plant, from the Western Cape, South Africa. It is listed as Endangered on the IUCN global Red List It was formerly classed in the genus ''Haworthia'', as ''Haworthia kingiana''. Description and taxonomy It is an evergreen succulent plant with rosettes of short, sharp, bright green, succulent leaves. The leaves are usually covered with flat, shiny tubercles. These are usually rounded and white, but they are occasionally elongated or slightly translucent. The plant gradually produces offsets and can form clumps. In November and December it produces pink-white flowers. The bright, yellow-green colour is the distinguishing feature of ''Tulista kingiana''. In other ways though, this species is quite variable. Even in one locality there can be great variety in leaf shape, growth form and tubercles. It was formerly classed in the genus ''Haworthia'', with the other large species ('' T.pumila'', '' T.minima'' & '' T.marginata'') in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An unrooted tree diagram (a network) makes no assumption about the ancestral line, and does ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autonym (botany)
In botanical nomenclature, autonyms are automatically created names, as regulated by the ''International Code of Nomenclature for algae, fungi, and plants'' that are created for certain subdivisions of genera and species, those that include the type of the genus or species. An autonym might not be mentioned in the publication that creates it as a side-effect. Autonyms "repeat unaltered" the genus name or species epithet of the taxon being subdivided, and no other name for that same subdivision is validly published (article 22.2). For example, ''Rubus'' subgenus ''Eubatus'' is not validly published, and the subgenus is known as ''Rubus'' subgen. ''Rubus''. Autonyms are cited without an author. The publication date of the autonym is taken to be the same as that of the subdivision(s) that automatically established the autonym, with some special provisions (the autonym is considered to have priority over the other names of the same rank established at the same time (article 11.6)). A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Corrugata
''Astroloba corrugata'' is a small succulent plant of the Astroloba genus, endemic to the Little Karoo and the far south of the Western Cape, South Africa. Naming This plant has been known by several names in its history. It was named ''"Astroloba rugosa"'' (Roberts Reinecke), ''"Astroloba aspera"'', and ''"Astroloba muricata"'', before it gained its current name. Description ''Astroloba corrugata'' is a compact ''Astroloba'' species, with slender, sprawling stems (up to 20 cm long), densely covered in spirally arranged pointed leaves. The leaves point outwards, and have slight non-marginated keels. They are green, but become reddish if exposed to direct sun. The outer side of the leaves are covered with distinctive tiny speckled "asperous" tubercles which (unlike '' Astroloba bullulata'') are the same colour as the leaf. These tubercles sometimes tend to cluster in longitudinal lines. These smaller, more evenly distributed tubercles (sometimes in longitudinal rows on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
× Astrolista Bicarinata
The multiplication sign, also known as the times sign or the dimension sign, is the symbol , used in mathematics to denote the multiplication operation and its resulting product. While similar to a lowercase X (), the form is properly a four-fold rotationally symmetric saltire. History The earliest known use of the symbol to represent multiplication appears in an anonymous appendix to the 1618 edition of John Napier's . This appendix has been attributed to William Oughtred, who used the same symbol in his 1631 algebra text, , stating:"Multiplication of species .e. unknownsconnects both proposed magnitudes with the symbol 'in' or : or ordinarily without the symbol if the magnitudes be denoted with one letter." Two earlier uses of a notation have been identified, but do not stand critical examination. Uses In mathematics, the symbol × has a number of uses, including * Multiplication of two numbers, where it is read as "times" or "multiplied by" * Cross product of two vect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robertson Karoo
Robertson Karoo is a semi-arid vegetation type, restricted to sections of the Breede River Valley, Western Cape Province, South Africa. It is a subtype of Succulent Karoo (geographically an extension of the "Little Karoo") and is characterised by the dominance of succulent plant species, and by several endemic plants and animals. Location and extent This vegetation type occurs in several large patches within the Breede River Valley, in the Western Cape Province of South Africa. It occurs in the area between Worcester in the north-west, Ashton in the east, and the Riviersonderend mountains in the south. Landscape and climate Robertson Karoo typically consists of low hills and flats covered in small succulent vegetation, usually growing on rocky shale-based soils. The climate is semi-arid due to the region lying in the rainshadow of the large mountain ranges to the south-west, but the rainfall does tend to occur mainly in winter. This vegetation type has a large number of ende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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