British biologists spend flora map

london - British biologists on Tuesday published a comprehensive report on the situation in the plant world. In 'State of the World's Plants' all hitherto known 390,000 described species with leaves and grain. The vast majority flourish.

The botanists from Kew Gardens in London writing a fifth of that 'huge garden' is threatened with extinction. It is often the fault in humans but also in diseases and exotic invaders. Of the latter category, there are five thousand. A major threat to the diversity of the flora are agriculture, logging and expansion of human habitat.

Last year two thousand new species discovered. Beneath the hundred-ton 'Gilbertiodendron maximum', a rare tree that grows only in the rainforest of Gabon. The carnivorous sundew 'Drosera magnifica 'was recognized as a new Facebook photo. Most acquisitions of plants have been found in Brazil ', China and Australia'. 30. Approximately 000 plants to be useful to the human being, for example, as food, drug or raw material for clothing.