i think the 'jasmine star' is a clovisaria, something or other.. folks just call them cloves...
Andyea, toadstool leather on the right... they come in different colors, pinkish/tannish skin/flesh, and colored tentacles, mine are green with neon green tips, although my neon is kind of mia right now...
You can cut the leathers up and frag them easily... each piece will just grow out like the parent colony...
you can cut the entire stalk off the rock and the remnants on the rock will grow a new replacement...
the flesh, like most leathers will go thru stages... sometimes they just sit there and look like leather.. sometimes they get all GROSS, and rotting looking.. like ulcers in the flesh, with rotting/decaying flesh falling off...
DO NOT WORRY.
this is natural and will happen for any number of reasons or for no reason at all..
They will recuperate, and come back nicer and more fuller each time