You actually don't need a chart, just the "master list" with the 23 types of flowers and foliage (numbered in the correct order!) and some basic math to predict your crosses. E.g. cross foliage type 4 with foliage type 16 and your hybrid will have foliage type (4+16)/2 = 10. If you end up with a fraction, just round up to the next integer, e.g. crossing types 3 and 8: (3+8)/2 = 5.5 - round up to 6. The chart is nice to visualize all the combinations, but all it takes is the list and a bit of simple math to do without it.