"A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems ..."
the "bark like" symptom would be the least of my worries. I would repot and bury at least a 1/4 of that stalk. you have some pretty good amount of roots showing. one good wind gust and your "tree" is coming down. lol