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Astroloba Corrugata - Detail Of Inflorescence 4
''Astroloba'' is a genus of flowering plants in the family Asphodelaceae, subfamily Asphodeloideae,Stevens, P.F. (2001 onwards)"Asphodeloideae" ''Angiosperm Phylogeny Website'', retrieved 2016-06-10 native to the Cape Province of South Africa. Naming The name of the genus is derived from the Greek words ''astros'', star, and ''lobos'', lobe, and refers to the starlike shape of the petals, which appear at the end of the tube-like flowers. Description They are very closely related to the genus ''Haworthia'', but are distinguished by their flowers being regular and not double-tipped. The flowers are small and white, and appear clustered on slender racemes., p. 17 They bear very regular, sharp, triangular, succulent leaves along their symmetrical columnar stems. The leaves are in a number of distinctive spiral arrangements. They are slow growing, multi-stemmed, and their longer stems tend to sprawl in their rocky natural habitat. Within the genus, various subgroupings can be re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Foliolosa
''Astroloba foliolosa'' is a small succulent plant of the genus ''Astroloba'' widespread in the arid parts of the Eastern Cape Province, South Africa. Description ''Astroloba foliolosa'' has slender stems (4–5 cm wide), which can grow over 20 cm in height and sprawl over the ground. The stems are densely covered in rounded triangular leaves, which grow in 5 ranks and sometimes form a rough spiral. The smooth, glossy, grey-green leaves curve outwards, sometimes almost at a 90 degree angle to the stem. The leaves have keels and margins, with a flat or convex upper face. This species produces cream-white flowers in the rainy season (July to March depending on region), tinged with green or yellow. Like its eastern relative ''Astroloba congesta'' its flowers have unusually short pedicels. However ''Astroloba congesta'' has wider stems and concave upper faces to its leaves. Its close relative to the west, '' Astroloba robusta'', has no pedicels at all and longer grey-b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Pentagona
''Astroloba pentagona'' (="hallii" nom. nud.) is a small succulent plant of the genus ''Astroloba'', restricted to an area of the western section of the Little Karoo, 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 countri .... Description This plant resembles a lower, more robust variety of ''A.bullulata''. Its lighter green leaves are thinner than those of ''bullulata'', and have dark longitudinal lines on the leaf undersides. Some specimens also have inconspicuous pale spots, which tend to form in longitudinal rows on the leaves. The leaves densely cover the stems which reach a height of 15 cm. The flowers (November to May) are lighter than those of ''bullulata''. It occurs south and east of Laingsburg, on rocky ridges in shale soils. This species is sometimes referr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba
''Astroloba'' is a genus of flowering plants in the family Asphodelaceae, subfamily Asphodeloideae,Stevens, P.F. (2001 onwards)"Asphodeloideae" ''Angiosperm Phylogeny Website'', retrieved 2016-06-10 native to the Cape Province of South Africa. Naming The name of the genus is derived from the Greek words ''astros'', star, and ''lobos'', lobe, and refers to the starlike shape of the petals, which appear at the end of the tube-like flowers. Description They are very closely related to the genus ''Haworthia'', but are distinguished by their flowers being regular and not double-tipped. The flowers are small and white, and appear clustered on slender racemes., p. 17 They bear very regular, sharp, triangular, succulent leaves along their symmetrical columnar stems. The leaves are in a number of distinctive spiral arrangements. They are slow growing, multi-stemmed, and their longer stems tend to sprawl in their rocky natural habitat. Within the genus, various subgroupings can be r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tulista 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] |
× 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] |
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] |
Astroloba Tenax
''Astroloba tenax'' is a succulent plant of the genus ''Astroloba'', indigenous to the Western Cape Province, South Africa. Description ''Astroloba'' species are all low-growing, branching, succulent plants. They have sharp triangular succulent leaves which have keels on their undersides. ''Astroloba tenax'' has curved, spreading leaves, which have a shiny surface, often with a variation of lines, spots or tubercles. It has extremely tall, thin inflorescences that are often branched. Each flower in tiny, gray and tubular, with a constricted yellow neck, and lobes which barely open. It is extremely variable in size and the ''moltenoi'' variety has the largest plants in the genus. ''Astroloba tenax'' is distinguished by its flowers and by the form of its glossy leaves. Distribution This species is restricted to a small, arid area in the vicinity of Prince Albert, in the Western Cape Province, South Africa. Varieties * ''A. tenax'' var. ''tenax'': The type variety. * ''A. tenax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Spirella
''Astroloba spirella'' (="''Astroloba smutsiana''" nom. nud.) is a small succulent plant of the genus ''Astroloba'', restricted to an area of the western section of the Little Karoo, South Africa. Description In appearance it is superficially very similar to ''Astroloba spiralis'', with its sharp, spirally-arranged leaves. However the perianth of ''spiralis'' is both inflated and strongly transversely rugose. ''A. spirella'' is also a smaller plant and has leaves that are sometimes striped with longitudinal streaks near the tips. It can be distinguished from its northern relative, '' Astroloba pentagona'', by its sharply pointed leaves, with properly marginate apices and absence of tubercles or striation. The leaves get a reddish-brown colour in the sun. The flowers appear from January to April, at the end of the dry summer. Distribution It occurs in rocky ridges of shale in the Little Karoo - between Montagu in the west, Barrydale, and Ladismith in the east (where it gradu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Spiralis
''Astroloba spiralis'' is a small succulent plant of the Astroloba genus, endemic to the southern Karoo regions of the Western and Eastern Cape Provinces, South Africa. Description ''Astroloba spiralis'' is a compact ''Astroloba'' species, with upright, erect stems that are densely covered in pointed succulent leaves. Stems are roughly 15 cm in diameter, and reach a height of 200mm. The leaves are blue-green to grey in colour, they grow in 5 rows that sometimes form a gentle spiral. The leaves also have smooth surfaces (unlike the tubercled leaves of '' Astroloba bullulata'' and ''Astroloba corrugata''). Each leaf typically has an oblique keel near the point. The flowers appear in autumn (December to May). This species is easily confused with its close relative, the rare '' Astroloba herrei''. Both plants also have inflated, puffed up flowers (perianths). However the flowers of ''Astroloba spiralis'' are wrinkled (transversely rugose), and not smooth like those of ''herr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Rubriflora
''Astroloba rubriflora'' is a succulent plant found in the mountainous Karoo area around Robertson, South Africa. It is listed as a Vulnerable species on the IUCN global Red List. Naming and taxonomy It was formerly grouped by some authorities (L.Bolus) as the only species in a separate monotypic genus, ''Poellnitzia'' (named after the botanist Joseph Karl von Poellnitz), on account of its unusual flowers. Its species name, ''rubriflora'' ("red-flowered"), refers to the peculiarly-formed red flowers, which have green tips. The species has also at various times been placed in the genera ''Aloe'', ''Apicra'' and ''Haworthia''. Description This is one of the most unusual of the species in its genus. Its flowers are unlike those of its close relatives in the ''Astroloba'' and ''Haworthia'' genera, and more similar to those of Aloes. They are evolved to be pollinated by sunbirds. The long thin inflorescence has a horizontal raceme and red flowers with green tips, that all twist into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Robusta
''Astroloba robusta'' is a small succulent plant of the genus ''Astroloba'' indigenous to the arid southern Cape regions of South Africa. It is the most widespread ''Astroloba'' species. Name This plant is commonly known in the local Afrikaans language as "Vetstingel" ("Fat-stalk"). This name, like its Latin species name ''"robusta"'', refers to its thick peduncle. Another common name is "Bokverwurg" ("Goat-choaker"), on account of the extremely hard, sharp leaves on its stems. Description ''Astroloba robusta'' is a relatively widespread ''Astroloba'' species, first formally described in 2017. Its stems are described as densely covered in sharp, triangular succulent leaves, with a glossy leaf-surface, a grey-brown colour, and with white margins and keels. This species produces small, robust, cream-white flowers in May to October (southern hemisphere), on an unbranched inflorescence. The flowers typically do not have pedicels (sessile), and their lobes curve outwards. The pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astroloba Herrei
''Astroloba herrei'' is a small succulent plant of the genus ''Astroloba'', restricted to the area around the Swartberg mountains, South Africa. It is listed as a Vulnerable species on the Red List of the South African National Biodiversity Institute (SANBI). Description ''Astroloba herrei'' is a compact ''Astroloba'' species, with stems growing up to 20 cm high, that are densely covered in pointed succulent leaves. Flowers appear from June to November. With its sharp, grey-green, keeled leaves, and its puffed up, inflated flowers, the species is easily mistaken for the closely related ''Astroloba spiralis'' species. However it is genetically distinct and can always be distinguished by its flowers and its phyllotaxis. Both ''spiralis'' and ''herrei'' have puffed up, inflated flowers, but those of ''herrei'' are smooth (unlike ''spiralis'', which has a wrinkled, transversely rugose, perianth). Other less reliable ways of identifying ''herrei'' are the fine, dark, longit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
