Different variants within a species are definitely crossable (for instance, I just recently purchased an A. barteri var. glabra x caladiifolia). Cross-pollinating distinct species is more of a trial-and-error thing, though... naturally, the more closely related the two species, the more likely hybridization is possible.

So, in short, which two Anubias are you trying to cross?

 

im thinking about crossing my anubias variegated with something else to see if the variegation carries over.

 

almost all species of Anubias are crossed

 

Just had 2 anubias species flowering at the same time. I don't know how to pollinate them but they both were dropping pollen so I rubbed them together. Anubias nana and Anubias 'Gasser' Would be cool if they were able to cross.

 

asukawashere, where did you find A. barteri var. glabra x caladiifolia and could you post some pics??