My poor Orchid! Another of the lower leaves was fading fast and yellowing; I noticed there was black tissue around the base and thought that was just the leaf dying so I gave it a little tug. It came off. And so did the entire top of the plant, including that beautiful new young leaf. The center of the whole thing is black with rot. I'm not sure how it happened- did I water it too much? (but the pot always feels light) or did I make a mistake in cutting back the stem and introduce pathogens? Well, it's done for now.
This third one is still doing okay, if a bit small.