Dor. pulcherrima var champornensis X Dor. pulcherrima var champornensis alba

[Cjcorner]

Absent parentheses, the name of this plant could be parsed as (Dor. pulcherrima var. alba X Dor. pulcherrima var. champornensis alba 'Lemon Dolly') or (Dor. pulcherrima var. alba X Dor. pulcherrima var. champornensis alba) 'Lemon Dolly'. Either would be equally valid, given no further information. Perhaps I made the wrong assumption. Perhaps you have.

Connie, are there any parentheses on your tag?

Agreed that the RHS is not necessarily a final taxonomic authority, it is the de facto final authority for horticultural purposes. I thought the RHS accepted (as does the AOS) the Kew "Checklist of Selected Plant Families" as the authority for taxonomy.
Further research:
-Kew Checklist DOES accept Plalaenopsis pulcherrima as the correct name for this plant. RHS lists Phal. pulcherrima as a synonym, and recognizes Dor. pulcherrima as the correct name. So maybe RHS has decided to be a taxonomic authority?

No, the tag does not have parentheses. I love all this taxonomic stuff....