Victoria (plant)
Victoria is a genus of flowering plants in the family Nymphaeaceae ( Nymphaeaceae ), which are due to their enormous size sheet in German also known as giant water lilies. The only two species are native to South America.
Description
The circular leaves float on the water. You have pinhole- fine pores and a notch in the high-arched edge, so that rain water can drain quickly. Stability and buoyancy they owe a strip-shaped supporting tissue on the underside of leaves, following the network of veins, from this grow spines on the underside of leaves. It contains large, air- filled intercellular spaces. All plant parts submerged are protected by hard, sharp spines in front of fish feeding.
A special feature is that the flowers of the most in September ( flowering time can vary from July to October ) over several weeks flowering Victoria at two consecutive nights rise: On the first night Victoria white flowers, pink in the second.
System
The genus belongs to the subfamily Victoria Nymphaeoideae within the family Nymphaeaceae, formerly Euryalaceae.
The only two species of the genus Victoria Lindl. are:
- Amazon giant water lily (Victoria amazonica ( Poepp. ) JCSowerby, Syn: Euryale amazonica Poepp, Nymphaea victoria RHSchomb ex Lindl nom inval, Victoria amazonica Planch ex Casp, Victoria regia Lindl, Victoria regia var. .. .. .. .. Randii hort ex Conard nom inval, Victoria regina RHSchomb ): .. .. , the home is the catchment area of the Amazon in South America. There are localities in Guyana, in the Brazilian states of Acre, Amazonas, southern Mato Grosso, western Mato Grosso do Sul, Para and Rondonia and in Bolivia ( Beni, Pando, Santa Cruz ).
- Santa Cruz giant water lily ( Victoria cruziana ADOrb, Syn: .. .. Argentina Victoria Burmeist nom nud, Victoria cruziana var malmei F.Henkel et al, Victoria cruziana var trickeri F.Henkel et al, Victoria regia. . var cruziana ( ADOrb. ) C.Lawson, Victoria trickeri ( F.Henkel ex Malme ) hort ex Mutzek ). the home is located in the river system of the Rio Paraná. Localities there are Argentina ( Chaco, Corrientes, Entre Rios, Formosa, Santa Fe), and Paraguay.
The two species can interbreed, which takes place in botanical gardens.
Botanical history
Victoria was discovered in 1816 by Thaddeus Haenke, then in 1832 by Eduard Friedrich Poeppig, one born in Plauen in Vogtland botanist. It was given its name until five years later, when Sir Robert Schomburgk on behalf of the Royal Geographical Society of London in Guiana, the water lily discovered one more time and they - in honor of the British Queen Victoria (1819-1901) - Nymphaea victoria called. John Lindley described it then valid as Victoria regia.
The leaves bear a weight of up to 60 kilograms.