Orchid Growing Training Course
Even during Bodkin's childhood the cities had been beleaguered citadels, hemmed in by enormous dykes and disintegrated by panic and despair, reluctant Venices to their marriage with the sea. Their charm and beauty lay precisely in their emptiness, in the strange junction of two extremes of nature, like a discarded crown overgrown by wild orchids.
Evolution of plants and insects could well be cited as a superb example. One thinks in particular of the marvellous adaptations of orchids for particular insect pollinators, the study of which was pioneered by none other than Charles Darwin. Surely such co-evolution began to evolve as early as the Cretaceous, when the angiosperms became the dominant land flora No doubt it did, but there is unsurprisingly no fossil evidence for it. There is one example from the fossil record, though, that appears to be an excellent example of co-evolution.
With industrialization all this changes - social structures and institutions undergo radical changes, larger familial structures collapse, and individuals and their nuclear families become more mobile. The inevitable consequence is that individuals develop no connections to the natural environment. What connections that do develop are to human built places. The problem though is that such places are more-or-less interchangeable - suburban areas, commercial districts, inner cities are indistinguishable as to their actual geographical locations. What clues there are to location are due to the natural elements that remain in the human built environment - palm trees rather than maple trees, orchids rather than roses and so on . . .
Greenhouses, sometimes called hothouses, work by trapping the sun's heat. A greenhouse's glass sides and roof let sunlight in, but keep heat from escaping. This causes the greenhouse to heat up, like a vehicle parked outside in the summer sun with the windows rolled up. A greenhouse offers plants a warm and humid environment, even if the outside weather is dry, windy, or cold. For a warm climate plant like the tropical orchid, a balmy greenhouse is the perfect environment.
Darwin spent the rest of his life expanding on different aspects of problems raised in the Origin. His later books, including The Variation of Animals and Plants under Domestication (1868), The Descent of Man (1871) and The Expression of the Emotions in Animals and Man (1872), were detailed expositions of topics that had been confined to small sections of the Origin. He also investigated plant physiology, especially fertilization, making many experiments in his home and garden, relishing his return to practical natural history work after a long period of writing. The first book he published after the Origin was a close examination of orchid fertilization expressly intended to show that these intricate flowers were not the result of divine design but merely a remarkable collection of adaptations to ensure insect fertilization. He had always been interested in the wider implications of botany and considered plants as significant evidence for his theories many of the key arguments for...
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