My ever so humble opinion is that whatever is decided, Passiflora Incense is one, single plant. The two entries should be merged and as many names as are relevant should be referenced under that single entry. Now, wasn't that easy?
Seriously, tho, I think it would be helpful to anyone looking for information in the Plant Database to include as many of the commonly used names, whether common or botanical, in areas that are searchable. But I have NO idea what to do about the whole "cinnicata" vs "cincinnata" issue. One database I looked at (the Southern Illinois University) had both names in different areas of the same database. sigh.