I don't know what it's called, but if you can see buds inside of a sheath
that is yellowing, remove the sheath immediately, or rot will set in that
turns it black and kills the buds.

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

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"M. A" wrote in message
ink.net...
Hello, What is it called when the bud suddenly turns yellow or black and
does not open even though you can see a potential flower inside. I had
this
happen on several of my Cats. Thanks for any help. M.A