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Asystasia Alba
''Asystasia alba'' is a species of tropics, tropical herbaceous plant, herb in the family Acanthaceae. It is endemism, endemic to Christmas Island, an Australian territory in the north-eastern Indian Ocean. Its specific name (botany), specific epithet comes from the Latin ''alba'' (white), referring to the colour of its flowers. Description ''Asystasia alba'' is an erect woody herb, growing to 0.5–0.75 m in height. Its 30–140 mm long leaf, leaves are ovate, acuminate or acute, pale green in colour and usually bristly when young. The inflorescence is 60–80 mm long, the flowers single or occasionally paired, the bracts and bracteoles about 2 mm long and the pedicel (botany), pedicels 1.5–3 mm long. The corolla (flower), corolla is white or violet, and the tube 14–18 mm long. The capsule is usually 2-seeded and about 26 mm long. The seeds are 4 mm long. ''Asystasia alba'' is a variable species; it forms part of a species comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Henry Nicholas Ridley
Henry Nicholas Ridley CMG (1911), MA (Oxon), FRS, FLS, F.R.H.S. (10 December 1855 – 24 October 1956) was an English botanist, geologist and naturalist who lived much of his life in Singapore. He was instrumental in promoting rubber trees in the Malay Peninsula that led to a level of rapid deforestation, instrumental in the 1926 Great Flood. For the fervour with which he pursued this work he came to be known as "Mad Ridley". Life Henry Ridley was the second son and third child born to Louisa Pole Stuart and Oliver Matthew Ridley in West Harling in Norfolk, where his father was the Rector. At the age of three his mother died and his father moved to Cobham in Kent. He studied at Tonbridge School and then went to Haileybury where his brother Stuart also studied. At Cobham, he had taken to the idea of collecting insects and he continued this at Haileybury where the school encouraged him to publish a "List of the Mammals and Coleoptera of Haileybury". The two brothers left Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bract
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate or ebracteolate. Variants Some bracts are brightly coloured which aid in the attraction of pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of '' Euphorbia pulcherrima'' (poinsettia) and '' Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and palea (upper bract), while each spikelet (group of florets) has a further pair o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Lamiales Of Australia
The Lamiales (also known as the mint order) are an order of flowering plants in the asterids clade of the Eudicots. Under the APG IV system of flowering plant classification the order consists of 24 families, and includes about 23,810 species and 1,059 genera with representatives found all over the world. Well-known or economically important members of this order include aromatic, culinary, and medicinal herbs such as basil, mint, rosemary, sage, savory, marjoram, oregano, hyssop, thyme, lavender, perilla, lemon verbena, catnip, bee balm, wild dagga, and oriental motherwort, as well as olives, ash trees, teak, foxgloves, lilacs, jasmine, snapdragons, African violets, Jacarandas, Paulownias, butterfly bushes, sesame, and psyllium. Description Plant species within the order Lamiales are eudicots and are herbaceous or have woody stems. Zygomorphic flowers are common, having five petals with an upper lip of two petals and lower lip of three petals, but actinomorphic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Endemic Flora Of Christmas Island
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are Indigenous (ecology), indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can also be referred to as an ''endemism'' or, in scientific literature, as an ''endemite''. Similarly, many species found in the Western ghats of India are examples of endemism. Endemism is an important concept in conservation biology for measuring biodiversity in a particular place and evaluating the risk of extinction for species. Endemism is also of interest in evolutionary biology, because it provides clues about how changes in the environment cause species to undergo range shifts (potentially expanding their range into a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Asystasia
The genus ''Asystasia'' belongs to the family Acanthaceae and comprises 59 species found in the tropics of Africa, Asia, Australia, and New Guinea. It includes the weedy species '' Asystasia gangetica''. Species 59 species are accepted: * '' Asystasia africana'' (S. Moore) C.B. Clarke * '' Asystasia alba'' Ridl. * '' Asystasia albiflora'' Ensermu * '' Asystasia ammophila'' Ensermu * ''Asystasia ansellioides'' * '' Asystasia atriplicifolia'' Bremek. * '' Asystasia australasica'' * '' Asystasia buettneri'' Lindau * ''Asystasia calcicola'' Ensermu & Vollesen * '' Asystasia charmian'' S.Moore * '' Asystasia chelnoides'' Nees * ''Asystasia congensis'' C.B.Clarke * ''Asystasia crispata'' Benth. * ''Asystasia dalzelliana'' Santapau * ''Asystasia excellens'' Lindau * '' Asystasia gangetica'' (L.) T.Anderson * ''Asystasia glandulifera'' Lindau * ''Asystasia glandulosa'' * ''Asystasia guttata'' * ''Asystasia hedbergii'' Ensermu * ''Asystasia hirsuta'' * ''Asystasia hispida'' * ''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Australian Biological Resources Study
Australian Biological Resources Study (ABRS) is a project undertaken by the Parks Australia Division of Australia's Department of Climate Change, Energy, the Environment and Water. Background ABRS was founded in 1973 from the recommendations of a 1972 Senate Select Committee report on Wildlife Conservation. ABRS was first set up as an Interim Council in 1973, followed by the establishment of the Study proper in 1978. The main aim of the Interim Council was to stimulate the study of taxonomy, distribution and ecology of Australia's biological resources via research grants, and for assessing the long term national requirements for taxonomic studies and maintenance of national collections of biological specimens. Research grants A core aim of the ABRS is to provide funding to support research on taxonomy and systematics for Australia's biota. The first grants offered by ABRS were to support the collection and scientific description of Australian plants and animals. Up to $75 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Marine Terrace
A raised beach, coastal terrace,Pinter, N (2010): 'Coastal Terraces, Sealevel, and Active Tectonics' (educational exercise), from [02/04/2011] or perched coastline is a relatively flat, horizontal or gently inclined surface of marine origin,Pirazzoli, PA (2005a): 'Marine Terraces', in Schwartz, ML (ed) ''Encyclopedia of Coastal Science.'' Springer, Dordrecht, pp. 632–633 mostly an old abrasion platform which has been lifted out of the sphere of wave activity (sometimes called "tread"). Thus, it lies above or under the current sea level, depending on the time of its formation.Strahler AH; Strahler AN (2005): ''Physische Geographie.'' Ulmer, Stuttgart, 686 p.Leser, H (ed)(2005): ‚''Wörterbuch Allgemeine Geographie.'' Westermann&Deutscher Taschenbuch Verlag, Braunschweig, 1119 p. It is bounded by a steeper ascending slope on the landward side and a steeper descending slope on the seaward side (sometimes called "riser"). Due to its generally flat shape, it is often used for Anth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Axil
A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf, but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. The leaf is an integral part of the stem system, and most leaves are flattened and have distinct upper ( adaxial) and lower (abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax, and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Asystasia Oppositiflora
The genus ''Asystasia'' belongs to the family Acanthaceae and comprises 59 species found in the tropics of Africa, Asia, Australia, and New Guinea. It includes the weedy species '' Asystasia gangetica''. Species 59 species are accepted: * '' Asystasia africana'' (S. Moore) C.B. Clarke * '' Asystasia alba'' Ridl. * '' Asystasia albiflora'' Ensermu * '' Asystasia ammophila'' Ensermu * ''Asystasia ansellioides'' * '' Asystasia atriplicifolia'' Bremek. * ''Asystasia australasica'' * '' Asystasia buettneri'' Lindau * ''Asystasia calcicola'' Ensermu & Vollesen * ''Asystasia charmian'' S.Moore * ''Asystasia chelnoides'' Nees * ''Asystasia congensis'' C.B.Clarke * ''Asystasia crispata'' Benth. * ''Asystasia dalzelliana'' Santapau * ''Asystasia excellens'' Lindau * '' Asystasia gangetica'' (L.) T.Anderson * ''Asystasia glandulifera'' Lindau * ''Asystasia glandulosa'' * ''Asystasia guttata'' * ''Asystasia hedbergii'' Ensermu * ''Asystasia hirsuta'' * ''Asystasia hispida'' * ''Asys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Corolla (flower)
Petals are modified leaves that form an inner whorl surrounding the reproductive parts of flowers. They are often brightly coloured or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually surrounded by an outer whorl of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include genera such as '' Aloe'' and '' Tulipa''. Conversely, genera such as '' Rosa'' and '' Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly coloured tepals. Since they in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Pedicel (botany)
In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. The stalk at the base of a leaf is called a petiole. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absence of a pedicel, the flowers are described as sessile. Pedicel is also applied to the stem of the infructescence. The word "pedicel" is derived from the Latin ''pediculus'', meaning "little foot". The stem or branch from the main stem of the inflorescence that holds a group of pedicels is called a peduncle. A pedicel may be associated with a bract or bracts. In cultivation In Halloween types of pumpkin A pumpkin is a cultivar, cultivated winter squash in the genus ''Cucurbita''. The term is most commonly applied to round, orange-colored squash varieties, but does not possess a scientific definition. It may be used in reference to many dif ... or squash plants, the shape o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
