It looks pretty close to the this.That looks like Bolbitis to me
I actually just left that customers house and confirmed it is bolbitus. I had a little melt on the crypts he gave me (not surprising) bit this has shown no issues in the 2 weeks since I got it.The dark green plant in front is Bolbitis. It's a slow growing plant but really nice. Take care of it and you will have it when you retire.