| Potinara and Blc are treated like Cattleyas because they have Cattleya Alliance plants in their parentage. The best way to know which plants are to be treated like Cattleyas learn which plants are in the Cattleya Alliance (see starter list below) then learn how to "read" the intergeneric hybrid names. For example, Blc. is Brassolaeliocattleya which contains Brassavolae, Laelia, and Cattleya.
Cattleya Alliance Plants
Cattleyas (of course)
Laelias
Gurainthe
Sophronitis
Brassavolae
Rhyncholaelia
Encyclia
Epidendrum
Schomburgkia
Dialaelia
Broughtonia
Tetramica
Because Cattleya Alliance orchids will not cross with orchids from other alliances (e.g. Oncidium Alliance et. al.) if theres even just one Cattleya Alliance plant in your cross, they'll all be Cattleya Alliance plats in the mix.
__________________  |