The basal part of the labellum stands over the bucket, and is itself hollowed out into a sort of chamber with two lateral entrances; within this chamber there are curious fleshy ridges.

唇瓣的基部位于桶的上方， 它本身被挖空成一个有两个侧向入口的腔室；在这个房间里有奇怪的肉质脊。