Phal bellina x Phal violacea indigo blue

[Ray]

I believe your last statement was correct.

In orchid nomenclature, we have:

1. Genus (or nothogenus, when it is a hybrid of multiple genera)
2. Species or hybrid (more correctly known as a “grex”)
3. Type or form, and
4. Cultivar (cultivated variety).

Hybrid name registrations are based only on the first two and is only a “name”, not requiring any descriptive information. The type and form are ways to apply better description to the appearance, and the cultivar is used to delineate a specific plant and it’s asexually derived offspring, i.e., clones, keikies, and divisions.