The first two editions of this work on flowers sold over 10,000 copies in just a few years. What makes this book special is its comprehensive approach: the flower is presented in all its aspects - from structure and function to ecology and evolution, from sexuality to molecular genetics. With over 150 fascinating photos and just as many illustrations, readers delve deeper into the biology of flowers, guided by one of the most respected experts in the field. For the 150th anniversary of the publisher, this classic is now being reissued, fundamentally updated by the author.