If anyone interested I stumbled on this https://www.agroforestry.co.uk/wp-content/uploads/site-files-pdf/AGN_sample.pdf https://www.agroforestry.co.uk/wp-conten

If anyone interested I stumbled on this https://www.agroforestry.co.uk/wp-content/uploads/site-files-pdf/AGN_sample.pdf https://www.agroforestry.co.uk/wp-content/uploads/site-files... "Rosaceae family intergeneric hybrids" which covers a number including those mentioned here, plus hawthorn, medlar and rowan mashups