Narcissus Bulb Fly

By Gafarshod Rabu, 04 Januari 2017

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Narcissus /n?:r's?s?s/ is a genus of mostly spring perennial plant life in the Amaryllidaceae (amaryllis) family. Various common names including daffodil,[notes 1] daffadowndilly,[3] narcissus, and jonquil are being used to describe all or some members of the genus. Narcissus has conspicuous flowers with six petal-like tepals surmounted by the cup- or trumpet-shaped corona. The bouquets are usually white or yellow (orange or green in garden types), with either uniform or contrasting colored tepals and corona.

Narcissus were popular in historic civilisation, both medicinally and botanically, but formally described by Linnaeus in his Species Plantarum (1753). The genus is generally thought to have about ten portions with roughly 50 species. The amount of kinds has mixed, depending about how they are categorised, due to similarity between species and hybridization. The genus arose some right time in the Late Oligocene to Early Miocene epochs, in the Iberian peninsula and adjacent areas of southwest Europe. The exact origin of the true name Narcissus is unfamiliar, but it is associated with a Greek term for intoxicated (narcotic) and the myth of the young ones of that name who fell in love with his own representation. The English phrase 'daffodil' appears to be derived from "asphodel", with which it was commonly likened.

The types are indigenous to meadows and woods in southern European countries and North Africa with a center of variety in the European Mediterranean, particularly the Iberian peninsula. Both wild and cultivated plants have naturalised widely, and were presented into the ASIA to the tenth century prior. Narcissi have a tendency to be long-lived bulbs, which propagate by division, but are insect-pollinated also. Known pests, diseases and disorders include viruses, fungi, the larvae of flies, nematodes and mites. Some Narcissus species have become extinct, while some are threatened by increasing tourism and urbanisation.

Historical accounts suggest narcissi have been cultivated from the earliest times, but became ever more popular in Europe after the 16th century and by the late 19th century were an important commercial crop centred mainly on holland. Narcissi are popular as trim flowers so that ornamental plant life in private and general public gardens today. The long history of breeding has led to thousands of different cultivars. For horticultural purposes, narcissi are categorised into divisions, covering a variety of colours and shapes. Like other members of these family, narcissi produce a true number of different alkaloids, which provide some protection for the plant, but may be poisonous if accidentally ingested. This property has been exploited for medicinal used in traditional healing and has led to the production of galantamine for the treatment of Alzheimer's dementia. Long celebrated in literature and art work, narcissi are associated with a true number of themes in various cultures, ranging from death to fortune, and as icons of planting season. The daffodil is the national blossom of Wales and the image of cancer charities in many countries. The appearance of the wild flowers in planting season is associated with festivals in many places.

Narcissus is a genus of perennial herbaceous bulbiferous geophytes, dying back again after flowering to the underground storage light bulb. They regrow in the next season from brown-skinned ovoid light bulbs with pronounced necks, and reach levels of 5-80 cm with regards to the species. Dwarf types such as N. asturiensis have a maximum elevation of 5-8 cm, while Narcissus tazetta might increase as tall as 80 cm.

The crops are scapose, having a single central leafless hollow blossom stem (scape). Several green or blue-green, small, strap-shaped leaves come up from the light bulb. The place stem usually bears a solitary flower, but sometimes a cluster of bouquets (umbel). The plants, that happen to be usually conspicuous and white or yellow, sometimes both or rarely renewable, contain a perianth of three parts. Closest to the stem (proximal) is a floral pipe above the ovary, then an outside ring made up of six tepals (undifferentiated sepals and petals), and a central disc to conical designed corona. The flowers may hang up down (pendent), or be erect. You will discover six pollen bearing stamens encompassing a central style. The ovary is second-rate (below the floral parts) comprising three chambers (trilocular). The super fruit consists of a dried out capsule that splits (dehisces) releasing numerous black seed products.

The bulb is placed dormant following the leaves and flower stem die back and has contractile origins that yank it down further into the soil. The blossom leaves and stem form in the bulb, to emerge the following season. Most species are dormant from summertime to overdue winter, flowering in the springtime, though a few varieties are fall flowering.

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