The opportunity is sometimes the only way to get an object. This time it is the benchmark for botany and horticulture. An episodic research for this book to make a gift that materializes today to great satisfaction. The opportunity is great and the price too. It must be said that the book was not found. I do not however regret this purchase. Consultation is a bit confusing: in alphabetical order, not in families (some families have changed since). Hopefully a re-edition of the latest changes take place. A long research about a horticultural plant has been realized by a first quick reading. A mystery solved just by chance and Botanica.