I think one of my 'Queen Emma' crinums is sick. (Note: I'm not entirely sure they're 'Queen Emma' crinums--it's just my best guess based on the foliage and flowers.)
The first thing I noticed is that all the little pups around its base turned ghostly pale and shriveled up. You can see the papery remains of some of the pups, plus a few that are hanging on in their current pallid state.
Don't be confused by the bright green leaves you see at the base--those are actually two bromeliads and aren't baby crinums.
Now the foliage on the main plant is discoloring. Some of the older leaves have severe yellowing along the margins, along with some rust coloration.
The youngest leaves in the center of the plant look like someone sucked the color out of them. They're looking rather pinkish. I guess if they're losing chlorophyll, then the red pigments that naturally appear in this variety would be more visible.
I'm going to do some research online to see if I can get to the bottom of this. Anyone else out there reading this post have any clues?
NOTE: It seems that spider mites might be the culprit. I posted an update here.