These are puzzles and quizzes like I've used in programs, so there are no answers posted! Click here [Sharon McAllister] to discuss your answers by e-mail. I don't want to spoil anyone's fun by posting the answers on-line – but some of these are tricky, so don't just assume that your answers are right.

• If you want to test your knowledge of the aril classification codes, take the Aril Quiz [6 photos].

• If you want to test your knowledge of the arilbred classification codes, take the Arilbred Quiz [9 photos].

• If you want to test your ability to recognize species traits, take the Onco Quiz [6 photos].

• Click on Photo Quiz, if you want to test your ability to distinguish among cultivars on the basis of pictures alone [8 photos].