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Saribus Woodfordii
''Saribus woodfordii'' is a species of fan palm which is native to an area from southeastern Papua New Guinea to the Solomon Islands. Taxonomy ''S. woodfordii'' was first collected in 1897 or 1898 on the island of Makira, also known as San Cristobal, in the Solomon Islands, by the German plant collector Wilhelm Micholitz. It was first described in 1898 under the name ''Livistona woodfordi'' by Henry Nicholas Ridley. Christine D. Bacon and William J. Baker moved the species to the resurrected genus '' Saribus'' in 2011. The name was later corrected to ''Livistona woodfordii''. A holotype was never designated by Ridley, so a lectotype was selected by John Leslie Dowe in 2009. Dowe chose the specimen sheet in The Natural History Museum in London, with isolectotypes designated in herbaria in the Museo di Storia Naturale di Firenze, Singapore Botanic Gardens and the Kew Herbarium. Description This plant is a hermaphrodite fan palm. It has a trunk up to in height, and diameter at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as Biophysical environment, environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and Luminous intensity, light intensity. Biotic index, Biotic factors include the availability of food and the presence or absence of Predation, predators. Every species has particular habitat requirements, habitat generalist species are able to thrive in a wide array of environmental conditions while habitat specialist species require a very limited set of factors to survive. The habitat of a species is not necessarily found in a ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lectotype
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN), the scientific name of every taxon is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saribus Merrillii
''Saribus'' is a genus of palms (family Arecaceae), native to Southeast Asia, Papuasia and Pacific Islands. They are fan palms, the leaves with an armed petiole terminating in a rounded, costapalmate fan of numerous leaflets. ''Livistona'' is closely related to the genus ''Saribus'', and for the past century and half ''Saribus'' was included in ''Livistona''. Recent studies, however, have advocated separating the two groups. The generic epithet ''Saribus'' comes from a local name in one of the Maluku languages, ''sariboe'', as recorded by the Dutch. ''Anáhaw'' (''Saribus rotundifolius'') is the unofficial national leaf of the Philippines. Species * '' Saribus brevifolius'' ( Dowe & Mogea) C.D.Bacon & W.J.Baker - Raja Ampat Islands in Indonesia * '' Saribus chocolatinus'' (Dowe) C.D.Bacon & W.J.Baker - Papua New Guinea * '' Saribus jeanneneyi'' ( Becc.) C.D.Bacon & W.J.Baker - New Caledonia * '' Saribus merrillii'' (Becc.) C.D.Bacon & W.J.Baker - Philippines * '' Saribus papu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saribus Chocolatinus
''Saribus chocolatinus'' is a species of palm tree in the genus '' Saribus'', which is native to Papua New Guinea. It is a fan palm. It is known as ''manganau'' in the Kamiali (Lababia) dialect of the Kala language. Taxonomy ''Saribus chocolatinus'' was only relatively recently described as a new species. This was done by John Leslie Dowe in his 2004 treatment of the taxon. At the time the genus '' Saribus'', which had officially been described in the 19th century (it had been created in the 17th century by Rumphius), was not recognised, and the species was described as ''Livistona chocolatina''. Soon, however, new phylogenetic research was published, comparing the DNA of different species of '' Livistona'', which found that the genus was polyphyletic. Thus the authors, Christine Bacon and William J. Baker, resurrected, i.e. re-recognised, ''Saribus'', and the species was moved to the genus by them in 2011. The species had been collected thrice before it had been formally n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-access Key
In phylogenetics, a single-access key (also called dichotomous key, sequential key, analytical key, or pathway key) is an identification key where the sequence and structure of identification steps is fixed by the author of the key. At each point in the decision process, multiple alternatives are offered, each leading to a result or a further choice. The alternatives are commonly called "leads", and the set of leads at a given point a "couplet". Single access keys are closely related to decision trees and binary search trees. However, to improve the usability and reliability of keys, many single-access keys incorporate reticulation, changing the tree structure into a directed acyclic graph. Single-access keys have been in use for several hundred years. They may be printed in various styles (e. g., linked, nested, indented, graphically branching) or used as interactive, computer-aided keys. In the latter case, either a longer part of the key may be displayed (optionally hyperl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petiole (botany)
In botany, the petiole () is the stalk that attaches the leaf blade to the Plant stem, stem. It is able to twist the leaf to face the sun, producing a characteristic foliage arrangement (spacing of blades), and also optimizing its exposure to sunlight. Outgrowths appearing on each side of the petiole in some species are called stipules. The terms wikt:petiolate, petiolate and wikt:apetiolate, apetiolate are applied respectively to leaves with and without petioles. Description The petiole is a stalk that attaches a leaf to the plant stem. In petiolate leaves the leaf stalk may be long (as in the leaves of celery and rhubarb), or short (for example basil). When completely absent, the blade attaches directly to the stem and is said to be Sessility (botany), sessile or apetiolate. Subpetiolate leaves have an extremely short petiole, and may appear sessile. The broomrape family Orobanchaceae is an example of a family in which the leaves are always sessile. In some other plant group ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diameter At Breast Height
Diameter at breast height, or DBH, is a standard method of expressing the diameter of the trunk or bole of a standing tree. DBH is one of the most common dendrometric measurements. Tree trunks are measured at the height of an adult's breast, which is defined differently in different countries and situations. In many countries, DBH is measured at approximately above ground. Global variation and scientific precision The height can make a substantial difference to the measured diameter. In the United States, DBH is typically measured at above ground. In some countries, such as Australia, New Zealand, Burma, India, Malaysia, and South Africa, breast height diameter has historically been measured at a height of , but because of much active research into allometrics that are being applied to trees and forests, the convention of is more appropriate. Ornamental trees are usually measured at 1.5 metres above ground. Some authors have argued that the term DBH should be abolish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermaphrodite
A hermaphrodite () is a sexually reproducing organism that produces both male and female gametes. Animal species in which individuals are either male or female are gonochoric, which is the opposite of hermaphroditic. The individuals of many taxonomic groups of animals, primarily invertebrates, are hermaphrodites, capable of producing viable gametes of both sexes. In the great majority of tunicates, mollusks, and earthworms, hermaphroditism is a normal condition, enabling a form of sexual reproduction in which either partner can act as the female or male. Hermaphroditism is also found in some fish species, but is rare in other vertebrate groups. Most hermaphroditic species exhibit some degree of self-fertilization. The distribution of self-fertilization rates among animals is similar to that of plants, suggesting that similar pressures are operating to direct the evolution of selfing in animals and plants. A rough estimate of the number of hermaphroditic animal species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kew Herbarium
The Kew Herbarium (herbarium code: K) is one of the world's largest and most historically significant herbaria, housed at the Royal Botanic Gardens, Kew in London, England. Established in the 1850s on the ground floor of Hunter House, it has grown to maintain approximately seven million preserved plant specimens, including 330,000 type (biology), type specimens. The herbarium's collections, which include specimens dating back to 1700, represent about 95% of known vascular plant genera and 60% of described fungi, with specimens collected over 260 years of botanical expeditions, botanical exploration. The herbarium processes around 5,000 specimen loans annually and hosts approximately 3,000 visitor-days of research visits each year, supporting a wide range of botanical research. The herbarium's development has been closely tied to British Botanical expeditions, botanical exploration and colonial expansion, with contributions from influential directors like Sir Joseph Dalton Hooker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Singapore Botanic Gardens
The Singapore Botanic Gardens is a -year-old tropical garden located at the fringe of the Orchard Road shopping district in Singapore. It is one of three gardens, and the only tropical garden, to be honoured as a UNESCO World Heritage Site. The Botanic Gardens has been ranked Asia's top park attraction since 2013, by TripAdvisor Travellers' Choice Awards. It was declared the inaugural Garden of the Year by the International Garden Tourism Awards in 2012. The Botanic Gardens was founded at its present site in 1859 by the Agri-horticultural Society. It played a pivotal role in the region's rubber trade boom in the early twentieth century when its first scientific director, Henry Nicholas Ridley, headed research into the plant's cultivation. By perfecting the technique of rubber extraction, which is still in use today, and promoting its economic value to planters in the region, rubber output expanded rapidly. At its height in the 1920s, the Malayan peninsula cornered half of the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museo Di Storia Naturale Di Firenze
The Museo di Storia Naturale di Firenze is a natural history museum in 6 major collections, located in Florence, Italy. It is part of the University of Florence. Museum collections are open mornings except Wednesday, and all day Saturday; an admission fee is charged. The museum was established on February 21, 1775 by Grand Duke Leopold II, Holy Roman Emperor, Pietro Leopoldo as the Imperial Regio Museo di Fisica e Storia Naturale. At that time it consisted of several natural history collections housed within the palazzo Torrigiani on Via Romana. Through the past two centuries, it has grown significantly and now forms one of the finest collections in Italy. Collections Today's collections are as follows: * Orto Botanico di Firenze, Giardino dei Semplici (Via Micheli, 3) - Europe's third oldest botanical garden, established in 1545, now containing some 9,000 plant specimens. * Museo di Botanica (Via La Pira, 4) - a large herbarium of approximately 4 million specimens, including th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
