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Pyrus Ciancioi
''Pyrus ciancioi'', the pero di Ciancio or Ciancio's pear, is a species of pear in the rose family Rosaceae. It is, together with '' P. sicanorum'', '' P. vallis-demonis'', '' P. castribonensis'' and '' P. pedrottiana'', one of five pear species endemic to Sicily. Having been described only in 2012, only about 15 mature individuals are known. Taxonomy ''Pyrus ciancioi'' is morphologically similar to '' P. communis'', '' P. pyraster'', '' P. spinosa'' and ''P. sicanorum'' in having a frequently persistent calyx, indicating a close evolutionary affinity. It was described by a team of researchers in 2012, and named after the Italian scientist . Description ''Pyrus ciancioi'' is a spiny tree of more than height. The leaves are lanceolate and long, with entire to slightly serrated margins and long petioles. Young leaves are more strongly pubescent on the underside than older leaves. The white flowers appear in corymbs in early April. The fruit is small () and brownish, and t ... [...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] |
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] |
Pyrus
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 Rosaceae, bearing the 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, canned, as juice, 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 Semitic origin (''pirâ''), meaning "fruit" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malus Crescimannoi
''Malus crescimannoi'', also known as the Raimondo apple, is a species of apple in the rose family, Rosaceae. Native to the island of Sicily, it was formally described only in 2008, making it one of the most recently described species of tree in Europe. At present unknown is whether the species is a remnant of a preglacial diversity of apples in Europe, or a distinctive race of European wild apple. Description It is a small to medium-sized tree of up to in size, that is distinguished from the European wild apple and the domestic apple by a combination of smaller flowers, more oval leaves and small ( in diameter) pomes that are usually longer than wide. The flowers appear in corymbs in April to May, with petals that are pink to purple in colour. The apple fruits ripen in October to November. The leaves are hairy with long petioles. The twigs are weakly thorny. File:Malus-crescimannoi-tree.png, Mature tree File:Malus-crescimannoi-flowers.png, Flowers File:Malus-crescimann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Arenite
A quartz arenite or quartzarenite is a sandstone composed of greater than 90% detrital quartz. Quartz arenites are the most mature sedimentary rocks possible, and are often referred to as ultra- or super-mature, and are usually cemented by silica. They often exhibit both textural and compositional maturity. The two primary sedimentary depositional environments that produce quartz arenites are beaches/ upper shoreface and aeolian processes Aeolian processes, also spelled eolian, pertain to wind activity in the study of geology and weather and specifically to the wind's ability to shape the surface of the Earth (or other planets). Winds may erosion, erode, transport, and deposit ....Prothero, D. R. and Schwab, F., 1996, Sedimentary Geology, pg. 96-98, See also * * References Further reading * * * * * sandstone sedimentary rocks {{petrology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Province Of Messina
The province of Messina (; ) was a Provinces of Italy, province in the autonomous island region of Sicily, Italy. Its capital was the city of Messina. It was replaced by the Metropolitan City of Messina. Geography Territory It had an area of , which amounts to 12.6 percent of total area of the island, and a total population of more 650,000. There are 108 ''comuni'' (: ''comune'') in the provinc The province included the Aeolian Islands, all part of the ''comune'' (municipality) of Lipari (with the exception of Salina Island, Salina). The territory is largely mountainous, with the exception of alluvial plain at the mouths of the various rivers. The largest plain is that in the area between Milazzo and Barcellona Pozzo di Gotto, which, together with Messina, form a metropolitan area of some 500,000 inhabitants, one of the largest in southern Italy. Much of the population is concentrated in the coastal area, after the hill towns have been largely abandoned from the 19th centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floresta, Sicily
Floresta ( Sicilian: ''Fluresta'') is a ''comune'' (municipality) in the Metropolitan City of Messina in the Italian region Sicily, located about east of Palermo and about southwest of Messina. Floresta is the highest comune above sea level in Sicily. It borders the following municipalities: Raccuja, Randazzo Basilica of Santa Maria Assunta. Randazzo () is a town and ''comune'' in the Metropolitan City of Catania, Sicily, southern Italy. It is situated at the northern foot of Mount Etna, c. northwest of Catania. It is the nearest town to the summi ..., Montalbano Elicona, Santa Domenica Vittoria, Tortorici, Ucria. References External links Official website Cities and towns in Sicily {{Sicily-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nebrodi
The Nebrodi (; , ; ) is a mountain range that runs along the north east of Sicily. Together with the Madonie and the Peloritani, they form the Sicilian Apennines. The mountains run from the Peloritani on the eastern part of the island to the foothill of the Madonie mountains to the west, facing the Tyrrhenian Sea on the north. Mount Etna, from which it is separated by the rivers Alcantara and Simeto, forms the range's southern border. Several of the peaks are above 1500 meters with the highest being the Monte Soro (1,847 m) and the Serra del Re (1,754 m). The range mostly made up of sandstone and clay rocks, but include also limestone landscapes, like the Rocche del Crasto where is located the Grotta del Lauro abundant of stalactites and stalagmites . Towns that are situated in the mountains include Troina, Nicosia, Mistretta, and a number of other towns in the province of Messina. Much of the mountains are covered by thick forests of cork trees on the lowest slopes givi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corymbs
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 word κόρυμβος, meaning "bunch of flowers or fruit". Image:Schirmtraube (inflorescence).svg, Racemose corymb Image:Schleifenblume06.jpg, ''Iberis umbellata'' or candytuft (racemose corymb) Image:Schirmrispe (inflorescence).svg, Cymose corymb Image:Sambucus nigra 003.jpg, ''Sambucus nigra ''Sambucus nigra'' is a species co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower
Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, modified leaves; corolla, the petals; androecium, the male reproductive unit consisting of stamens and pollen; and gynoecium, the female part, containing style and stigma, which receives the pollen at the tip of the style, and ovary, which contains the ovules. When flowers are arranged in groups, they are known collectively as inflorescences. Floral growth originates at stem tips and is controlled by MADS-box genes. In most plant species flowers are heterosporous, and so can produce sex cells of both sexes. Pollination mediates the transport of pollen to the ovules in the ovaries, to facilitate sexual reproduction. It can occur between different plants, as in cross-pollination, or between flowers on the same plant or even the same f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichome
Trichomes (; ) are fine outgrowths or appendages on plants, algae, lichens, and certain protists. They are of diverse structure and function. Examples are hairs, glandular hairs, scales, and papillae. A covering of any kind of hair on a plant is an indumentum, and the surface bearing them is said to be Leaf#Surface, pubescent. Algal trichomes Certain, usually filamentous, algae have the terminal cell (biology), cell produced into an elongate hair-like structure called a trichome. The same term is applied to such structures in some cyanobacteria, such as ''Spirulina (dietary supplement), Spirulina'' and ''Oscillatoria''. The trichomes of cyanobacteria may be unsheathed, as in ''Oscillatoria'', or sheathed, as in ''Calothrix''. These structures play an important role in preventing soil erosion, particularly in cold desert climates. The filamentous sheaths form a persistent sticky network that helps maintain soil structure. Plant trichomes Plant trichomes have many diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lanceolate
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] |
