Orchids belong to the Asparagales' order, one of the biggest plant family and they are all belong to the family Orchidaceae. Orchidaceae is considered one of the biggest on the bothanic family. The number of species of orchid is almost 25 thousand, which is about 8% of all plants with seed, and not counting the thousands that have appeared throush hibridation and variety cultive of selection.
They grown on trees and use them to reach the light they need. However, they aren't parasites and they feed themselves of decomposing materials that fall of the trees and accumulate on the ground. So that, their seeds need and external agent that give them the necessary nutrients to germinate.
This plants can have different forms, colours and sizes, and live mostly in tropical places, specially mountains that usually are natural barriers and isolate the plants population, growing in different countains except Antartic. Th size of the flower differs from 2mm to more than 20cm and the colours go from white, to greenish, yellow, red, blue and more intensive colours.
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| Photo: pierdut in spaziu |
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| Photo: COMPO |
According to Eric Hansen, author of "Orchid Fever: A Horticultural Tale of Love, Lust and Lunacy", the orchids are the cause of a vicious that can transform to madness.
They reproduce by spreading seeds all over the nature and, in cultive, by in-vitro reproduction, division of clumps and others.
Orchids cohabit with animals and fungi, and need them to survive.
Although their irregular destribution, orchid are found anywhere in the planet. Due to this geographic extension, the species have very positive conditions of adaptation, adding many pollinators agents that are present in those areas.
Therefore, it is a family in an active evolutive cicle. Orchides can grow incommon interest in lovers of this tipw of species.
Written by: Rita Lopes
Translated by: Francisca Rehbein
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