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Narcissus is a genus of predominantly spring flowering perennial plants of the amaryllis family, Amaryllidaceae. Various common names including daffodil, narcissus, and jonquil are used to describe all or some members of the genus. Narcissus has conspicuous flowers with six petal-like tepals surmounted by a cup- or trumpet-shaped corona. The flowers are generally white and yellow, with either uniform or contrasting coloured tepals and corona.
Narcissus pseudonarcissus is a perennial flowering plant.
Narcissus poeticus, the poet's daffodil, poet's narcissus, nargis, pheasant's eye, findern flower or pinkster lily, was one of the first daffodils to be cultivated, and is frequently identified as the narcissus of ancient times. It is also often associated with the Greek legend of Narcissus. It is the type species of the genus Narcissus and is widely naturalised in North America.
Cucumber mosaic virus (CMV) is a plant pathogenic virus in the family Bromoviridae. This virus has a worldwide distribution and a very wide host range, having the reputation of the widest host range of any known plant virus. It can be transmitted from plant to plant both mechanically by sap and by aphids in a stylet-borne fashion. It can also be transmitted in seeds and by the parasitic weeds, Cuscuta sp. (dodder).
Narcissus triandrus, also known as the Angel's Tears daffodil, is a species of dwarf flowering plant within the family Amaryllidaceae.
Tulip breaking virus is one of five plant viruses of the family Potyviridae that cause color-breaking of tulip flowers. These viruses infect plants in only two genera of the family Liliaceae: tulips (Tulipa) and lilies (Lilium).
Narcissus jonquilla, commonly known as jonquil or rush daffodil, is a bulbous flowering plant, a species of the genus Narcissus (daffodil) that is native to Spain and Portugal but has now become naturalised in many other regions: France, Italy, Turkey, the former Yugoslavia, Madeira, British Columbia in Canada, Utah, Illinois, Minnesota, Ohio, and the southeastern United States from Texas to Maryland.
High Plains wheat mosaic emaravirus (WMoV), or High Plains virus (HPV) or Maize red stripe virus (MRSV/MRStV) is the causative agent of High plains disease of maize and wheat. It is spread by wheat curl mite, Aceria tosichella, which also transmits Wheat streak mosaic virus. The mite's ability to transmit a number of different viruses to cereal crops make it an economically important agricultural pest. In late June 2017 this virus was first detected in Canada, in Alberta. The Alberta samples were 99% similar to those in the USA. As Wheat streak mosaic virus is already present in Alberta, and coinfection with these two causes even more severe damage, this could cause much higher yield losses.
The taxonomy of Narcissus is complex, and still not fully resolved. Known to the ancients, the genus name appears in Graeco-Roman literature, although their interest was as much medicinal as botanical. It is unclear which species the ancients were familiar with. Although frequently mentioned in Mediaeval and Renaissance texts it was not formally described till the work of Linnaeus in 1753. By 1789 it had been grouped into a family (Narcissi) but shortly thereafter this was renamed Amaryllideae, from which comes the modern placement within Amaryllidaceae, although for a while it was considered part of Liliaceae.
Botryotinia polyblastis is a fungal plant pathogen that causes Narcissus Fire of daffodils, genus Narcissus.
Narcissus latent virus (NLV) is a Macluravirus, a plant pathogenic virus of the family Potyviridae, which infects Narcissus.
Narcissus degeneration virus (NDV) is a plant pathogenic Potyvirus of the family Potyviridae which infects plants of the genus Narcissus. It is one of the most serious and prevalent of the approximately 21 viruses which infect this genus.NDV is associated with chlorotic leaf striping in N. tazetta.
Narcissus late season yellows virus (NLSYV) is a plant pathogenic Potyvirus of the family Potyviridae which infects plants of the genus Narcissus. It was originally isolated from N. pseudonarcissus in 1977.
Narcissus yellow stripe potyvirus (NYSV) is a plant pathogenic Potyvirus of the family Potyviridae which infects plants of the genus Narcissus. It is one of the commoner viruses infecting Narcissus, and is transmitted by aphids.
Narcissus tip necrosis virus (NTNV) is a plant pathogenic virus of the family Tombusviridae, which infects plants of the genus Narcissus, the only known host.
Narcissus 'Tête-à-tête' is a hybrid cultivar of Narcissus, which was introduced in 1949. It is one of 110 cultivars produced by British daffodil breeder Alec Gray. 'Tête-à-tête' is a popular ornamental plant, which is known for its very early flowering period and short stature. This cultivar is commonly used as a garden plant where it can be planted in pots, rock gardens, garden borders and even naturalized in lawns. The cultivar name 'Tête-à-tête' means to have a conversation between two people, which relates to the cultivar often hosting a pair of flowers per stem.
Egbertus "Egbert" van Slogteren was a Dutch professor of horticulture and phytopathology, known for his research on flower bulbs and diagnosis of viral diseases in plants.
James Kirkham Ramsbottom was an English botanist. He became interested in the field after he was recommended to pursue an outdoor career for his health. After a short period at the Chelsea Physic Garden Ramsbottom studied at the RHS Garden Wisley. Coming first in their diploma examinations Ramsbottom became a research student at the Royal Horticultural Society (RHS) in 1913. He studied leaf blotch disease in irises and became assistant editor of the Gardeners' Magazine.
References
- 1 2 "Narcissus (Narcissus spp.)". UC Pest Management Guidelines. Agriculture and Natural Resources, University of California. Integrated pest management program. March 2009.
- ↑ PNW 2014.
- ↑ Berniak 2013.
- ↑ "Daffodil viruses". Royal Horticultural Society. 2014. Retrieved 8 December 2014.
- ↑ Mowat 1988.
