Thursday, February 4, 2010

Task 2: Classifying the Rosa chinensis( China Rose ) through Linnaean Taxonomy


The Rosa chinensis( China Rose ), linnaean taxonomic classification.

Kingdom
Plantae ( Plant ).
Plants are living organisms belonging to the kingdom Plantae. They include familiar organisms such as trees, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The scientific study of plants, known as botany, has identified about 350,000 extant species of plants, defined as seed plants, bryophytes, fern and fern allies. As of 2004, some 287,655 species had been identified, of which 258,650 are flowering and 18,000 bryophytes (see table below). Green plants, sometimes called Viridiplantae, obtain most of their energy from sunlight via a process called photosynthesis.

Phylum
Magnoliophyta ( Flowering Plant )
The flowering plants or angiosperms (Angiospermae or Magnoliophyta) are the most diverse group of land plants. The flowering plants and the gymnosperms are the only extant groups of seed plants. The flowering plants are distinguished from other seed plants by a series of apomorphies, or derived characteristics.

Class
Magnoliopsida
Magnoliopsida is a valid botanical name for a class of flowering plants. By definition the class will include the family Magnoliaceae, but its circumscription can otherwise vary, being more inclusive or less inclusive depending upon the classification system being discussed.

Order
Rosales
Rosales is an order of flowering plants, including nine families, the type family being the rose family Rosaceae. These nine families (see box, right) are those shown by the genetic analysis carried out by the Angiosperm Phylogeny Group to be related to each other. Their analysis showed that the old Cronquist system order of Urticales belongs within the Rosales. In the APG classification, well-known members of Rosales include: roses; strawberries, blackberries and raspberries; apples and pears; plums, peaches and apricots; almonds; rowan and hawthorn; elms; figs; nettles; and hops and cannabis. Apart from the Rosaceae itself, this is a complete change from the circumscription of the Rosales in the Cronquist system.

Its Family is
Rosaceae ( Rose Family ).
The Rosaceae or rose family is a large family of plants, with about 3000 species in 100 genera (according to the Kew Royal Botanical Gardens). The name is derived from the genus Rosa. The largest genera are Sorbus, Crataegus and Cotoneaster (more or less 260 species each).

Genus
Rosa ( Rose )
A rose is a perennial flower shrub or vine of the genus Rosa, within the family Rosaceae, that contains over 100 species and comes in a variety of colours. The species form a group of erect shrubs, and climbing or trailing plants, with stems that are often armed with sharp prickles. Most are native to Asia, with smaller numbers of species native to Europe, North America, and northwest Africa. Natives, cultivars and hybrids are all widely grown for their beauty and fragrance.
The leaves are alternate and pinnately compound, with sharply toothed oval-shaped leaflets. The plant's fleshy edible fruit, which ripens in the late summer through autumn, is called a rose hip. Rose plants range in size from compact, miniature roses, to climbers that can reach 7 meters in height. Species from different parts of the world easily hybridize, which has given rise to the many types of garden roses.
The name rose comes from French, itself from Latin, rosa, which was borrowed from Oscan, from Greek rhodion (Aeolic wrodion), from Old Persian wurdi "flower" (cf. Avest. warda, Sogdian ward, Parthian wâr).
Attar of rose is the steam-extracted essential oil from rose flowers that has been used in perfumes for centuries. Rose water, made from the rose oil, is widely used in Asian and Middle Eastern cuisine. The French are known for their rose syrup, most commonly made from an extract of rose petals. In the United States, this French rose syrup is used to make rose scones and marshmallows.
Rose hips are occasionally made into jam, jelly, and marmalade, or are brewed for tea, primarily for their high Vitamin C content. They are also pressed and filtered to make rose hip syrup. Rose hips are also used to produce Rose hip seed oil, which is used in skin products and some makeup products.

information received from wikipedia.

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