Some old crosses, as well as some natural hybrids still have Latinised names. Brabantiae is what...aclandiae x loddigesii? If memory serves, anyway. Note that the natural hybrids, when written "should" have an 'x' in front like C. xbrabantiae or C. xhardyana. However, remade-in-cultivation varieties can be called by the usual upper-case hybrid name format, e.g. C. Brabantiae, C. Hardyana, etc.
Thank you everyone. There is no fragrant on this plant. I googled some images to see the different variations of the plant. They are so nice especially the red and yellow ones.