EDIT

ref #9778, ref #9782 fix parsing for (sub)proles

ref #9757 add test for parsing into existing name

ref #9754 fix tests

ref #9754 fix appended phrase handling in cultivar formatter

ref #9782 adapt abbreviation for proles - adapt tests

ref #6387 test that convar is not a cultivar

cleanup

ref #9778, ref #9755, ref #9754, ref # 9757 split grex and add new ranks lusus, subproles and subgrex

ref #9754 handle infraspecific epithets better

ref #9754 handle null values for cultivar epis better