The Story of the Apple - Barrie Edward Juniper, D. J. Mabberley - Google Books

http://books.google.de/books?id=p7b4-UGyRyYC&pg=PA178&lpg=PA178&dq=niedzwetzky+distinct&source=web&ots=GfIUrSgQSe&sig=7laxPc9R20

The Story of the Apple reveals the solution to a long-standing puzzle. Where did the apple come from, and why is the familiar large, sweet, cultivated apple so different from all other wild apple species with their bitter, cherry-sized fruits? This book…