Just an observation really, having updated the dictionary to 1N today.

Within Pinopsida, we have the genus level hybrid X Cupressocyparis (Cupressus x Chamaecyparis -
which was previously the name of the pseudogenus containing Leyland Cypress) with no children, and at the same level of the hierarchy, Leyland Cypress (now apparently called X Cuprocyparis leylandii).

Probably consistent, but looks odd.