I don't know what sources are used by the site you linked to. I did see that the PlantList listed this illustration as being a synonym for
C. micropetala, but I'm told that the PlantList is outdated and unreliable.
Catalogue of Life does not have more than one listing for
C. jorullensis, as can happen when an accepted name is used illegitimately.
Hooker states that it is "assuredly" the
C. Jorullensis of Humboldt and Kunth, as described here:
https://www.biodiversitylibrar...
Hooker's description from
Curtis's Botanical Magazine is at the following link:
https://www.biodiversitylibrar...
Either Hooker was incorrect when he said his figured plant was "assuredly" the
C. Jorullensis of Humboldt and Kunth, or he was mistaken when he wrote that the
C. eminens of Planch. et Lind. was a synonym...see the illustrations of
C. eminens at these links:
https://www.biodiversitylibrar...
https://www.biodiversitylibrar...
It might be best to delete the illustration if it can't be determined where it belongs.
Cheers,
Virginia