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Pyrus Sicanorum
''Pyrus sicanorum'', the Pero dei Monti Sicano, is a species of pear in the rose family Rosaceae, that is native to central western Sicily. It is, together with '' P. ciancioi, P. pedrottiana, P. vallis-demonis'' and '' P. castribonensis'', one of five pear species endemic to the island, and was described in 2006. Taxonomy The species was described by a team of Palermo University botanists around Francesco Raimondo as part of an effort to systematise the rosaceous trees on the island which also led to the description of the whitebeams '' Aria madoniensis'', '' A. busambarensis'', '' A. meridionalis'' and '' A. phitosiana'', the wild apple ''Malus crescimannoi'', and the abovementioned four other species of pear. The species is named after the Sicani Mountains, the species' '' locus classicus''. Of the pear species found growing wild in Sicily, ''P. sicanorum'' appears to be most closely related to the common pear ( ''Pyrus communis'' subsp. ''communis''), and its origin se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pear
Pears are fruits produced and consumed around the world, growing on a tree and harvested in late summer into mid-autumn. The pear tree and shrub are a species of genus ''Pyrus'' , in the Family (biology), family Rosaceae, bearing the Pome, pomaceous fruit of the same name. Several species of pears are valued for their edible fruit and juices, while others are cultivated as trees. The tree is medium-sized and native to coastal and mildly temperate regions of Europe, North Africa, and Asia. Pear wood is one of the preferred materials in the manufacture of high-quality woodwind instruments and furniture. About 3,000 known varieties of pears are grown worldwide, which vary in both shape and taste. The fruit is consumed fresh, canning, canned, as juice, Dried fruit, dried, or fermented as perry. Etymology The word ''pear'' is probably from Germanic ''pera'' as a loanword of Vulgar Latin ''pira'', the plural of ''pirum'', akin to Greek ''apios'' (from Mycenaean ''ápisos''), of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monti Sicani
The Monti Sicani are a mountain chain in central-southern Sicily, southern Italy, divided between the provinces of Agrigento and Palermo. The name also indicates a series of municipalities or ''comuni A (; : , ) is an administrative division of Italy, roughly equivalent to a township or municipality. It is the third-level administrative division of Italy, after regions () and provinces (). The can also have the City status in Italy, titl ...'' in the area. The territory is hilly, with clay and sandstone being the predominant rock, and is used for pasture. It also includes a proper mountain area reaching altitudes above 900 m, with Mesozoic limestone rocks. Peaks over 1,000 m include the Rocca Busambra (1,613 m), Monte delle Rose (1,436 m), Monte Barraù (also called Monte Barracù) (1,420 m) and the Monte Cammarata (1578 m). Biodiversity Fauna The territory of the Sicani mountains offers different habitats to wildlife that is rich in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prizzi
Prizzi is a town and ''comune'' of 5,711 inhabitants in the Italian Metropolitan City of Palermo, on the island of Sicily. It is located south of the city of Palermo at an altitude of 1045 m (3,428 ft) above sea level on a hill in the upper valley of the River Sosio. Prizzi is surrounded by the ''comuni'' of Campofelice di Fitalia, Castronovo di Sicilia, Lercara Friddi, Palazzo Adriano, Vicari, and the city of Corleone. History Traces have been found of a small Elymian settlement, called Hippana or Hyppana, dating from the 8th-6th centuries BC on the nearby Montagna dei Cavalli. This settlement was later rebuilt in the 4th century BC, by Hiero I of Syracuse, and subsequently inhabited by Carthaginians, Greeks, Arabs, and Romans. Hippana has the highest altitude Greek theater known in Sicily. The ancient town of Comiciana was probably nearby. The town of Prizzi is thought to have been constructed by the refugees of a Roman invasion, but it is better documented to have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pome
In botany, a pome is a type of fruit produced by flowering plants in the subtribe Malinae of the family Rosaceae. Pome fruits consist of a central "core" containing multiple small seeds, which is enveloped by a tough membrane and surrounded by an edible layer of flesh. Pome fruit trees are deciduous, and undergo a dormant winter period that requires cold temperatures to break dormancy in spring. Well-known pomes include the apple, pear, and quince. Etymology The word ''pome'' entered English in the late 14th century, and referred to an apple or an apple-shaped object. It derived from the Old French word for "apple": (12th century; modern French is ), which in turn derived from the Late Latin or Vulgar Latin word "apple", originally the plural of Latin "fruit", later "apple". Morphology A pome is an accessory fruit composed of one or more Gynoecium, carpels surrounded by accessory tissue. The accessory tissue is interpreted by some specialists as an extension of the rece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
April
April is the fourth month of the year in the Gregorian and Julian calendars. Its length is 30 days. April is commonly associated with the season of spring in the Northern Hemisphere, and autumn in the Southern Hemisphere, where it is the seasonal equivalent to October in the Northern Hemisphere and vice versa. History The Romans gave this month the Latin name '' Aprilis''"April" in '' Chambers's Encyclopædia''. London: George Newnes, 1961, Vol. 1, p. 497. but the derivation of this name is uncertain. The traditional etymology is from the verb ''aperire'', "to open", in allusion to its being the season when trees and flowers begin to "open", which is supported by comparison with the modern Greek use of άνοιξη (''ánixi'') (opening) for spring. Since some of the Roman months were named in honor of divinities, and as April was sacred to the goddess Venus, her Veneralia being held on the first day, it has been suggested that Aprilis was originally her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
March
March is the third month of the year in both the Julian and Gregorian calendars. Its length is 31 days. In the Northern Hemisphere, the meteorological beginning of spring occurs on the first day of March. The March equinox on the 20 or 21 marks the astronomical beginning of spring in the Northern Hemisphere and the beginning of autumn in the Southern Hemisphere, where September is the seasonal equivalent of the Northern Hemisphere's March. History The name of March comes from '' Martius'', the first month of the earliest Roman calendar. It was named after Mars, the Roman god of war, and an ancestor of the Roman people through his sons Romulus and Remus. His month ''Martius'' was the beginning of the season for warfare, and the festivals held in his honor during the month were mirrored by others in October, when the season for these activities came to a close. ''Martius'' remained the first month of the Roman calendar year perhaps as late as 153 BC, and several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corymb
Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial resemblance towards an umbel, and may have a branching structure similar to a panicle. Flowers in a corymb structure can either be parallel, or alternate, and form in either a convex, or flat form. Many species in the Maloideae, such as hawthorns and rowans, produce their flowers in corymbs. The Norway maple and yerba maté are also examples of corymbs. The word ''corymb'' is derived from the Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ... word κόρυμβος, meaning "bunch of flowers or fruit". Image:Schirmtraube ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomophily
Entomophily or insect pollination is a form of pollination whereby pollen of plants, especially but not only of flowering plants, is distributed by insects. Flowers pollinated by insects typically advertise themselves with bright colours, sometimes with conspicuous patterns (honey guides) leading to rewards of pollen and nectar; they may also have an attractive scent which in some cases mimics insect pheromones. Insect pollinators such as bees have adaptations for their role, such as lapping or sucking mouthparts to take in nectar, and in some species also pollen baskets on their hind legs. This required the coevolution of insects and flowering plants in the development of pollination behaviour by the insects and pollination mechanisms by the flowers, benefiting both groups. Both the size and the density of a population are known to affect pollination and subsequent reproductive performance. Coevolution History The early spermatophytes (seed plants) were largely dependent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrus Pyraster
''Pyrus pyraster'' ( syn. ''Pyrus communis subsp. pyraster''), also called European wild pear, is a species of pear of the family Rosaceae. This wild pear and ''Pyrus caucasica'' (syn. ''P. communis'' subsp. ''caucasica'') are thought to be the ancestors of the cultivated European pear (''Pyrus communis'' subsp. ''communis''). Both the wild pears are interfertile with domesticated pears. It is sometimes difficult to distinguish ''Pyrus pyraster'' from a common pear. ''Pyrus pyraster'' can reach an age of 100 to 150 years. Description ''Pyrus pyraster'' is a deciduous plant reaching in height as medium-sized shrub and as a tree.Pignatti S. - Flora d'Italia – Edagricole – 1982. Vol. I, pag. 603 Unlike the cultivated form, the branches have thorns. The leaves are ovate with serrated margins. The flowers have white petals. The stamens are equal to the length of styles. The flowering period extends from April through May. The fruits reach in diameter and ripen in late ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Leaf Morphology
The following terms are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflet (botany), leaflets). The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf#Terminology, leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thorns, Spines, And Prickles
In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called ''spinose teeth'' or ''spinose apical processes''), are hard, rigid extensions or modifications of leaf, leaves, roots, plant stem, stems, or plant bud, buds with sharp, stiff ends, and generally serve the same function: physically plant defense against herbivory, defending plants against herbivory. Description In common language, the terms are used more or less interchangeably, but in botanical terms, thorns are derived from Shoot (botany), shoots (so that they may or may not be branched, they may or may not have leaves, and they may or may not arise from a bud),Simpson, M. G. 2010. "Plant Morphology". In: ''Plant Systematics, 2nd. edition''. Elsevier Academic Press. Chapter 9.Judd, Campbell, Kellogg, Stevens, Donoghue. 2007. "Structural and Biochemical Characters". In: ''Plant Systematics, a phylogenetic approach, third edition''. Chapter 4. spines are derived from Leaf, leaves ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habit (biology)
Habit, equivalent to habitus in some applications in biology, refers variously to aspects of behaviour or structure, as follows: *In zoology (particularly in ethology), ''habit'' usually refers to aspects of more or less predictable ''behaviour'', instinctive or otherwise, though it also has broader application. ''Habitus'' refers to the characteristic form or morphology of a species. *In botany, the plant habit is the characteristic form in which a given species of plant grows.Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 Behavior In zoology, ''habit'' (not to be confused with ''habitus'' as described below) usually refers to a specific behavior pattern, either adopted, learned, pathological, innate, or directly related to physiology. For example: * ...the atwas in the ''habit'' of springing upon the oor knockerin order to gain admission... * If these sensitive parrots are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
