This chart compares the KEY VEGETABLES POLLINATION CHART (available on the urban food garden website) with my personal experiences of saving seeds.  I have found that some seeds are easier to save than indicated on the KEY VEGETABLES POLLINATION CHART, as long as you are only wanting seeds that stay reasonably true to type and not exact genetic copies. Conversely, I have found some seeds harder to save than the KEY VEGETABLES POLLINATION CHART indicates for a variety of reasons.