sentences:  Economic botany refers to the cultivation of plants within the botanic garden's exotic environment with a view to contributing to the economy of the local region and the colony as a whole, and involved acclimatising, cultivating and testing plants of commercial value.Ornamental botany recognised that human perspectives on nature were not totally focused on use, but also on the more aesthetic qualities of horticulture.By the end of the nineteenth century, an international network of regional botanic gardens was established, extending throughout the British Empire, and with the Royal Botanic Gardens, Kew as the key centre for botanical information and collections.