That layer of yellow blobs are all clusters of tiny, growing Dendrobium embryos. Sexy goop, eh?
That tiny fluff is just the packaging – the seeds are too tiny to be visible to the naked eye.
I received the deflasked seedlings today and there were at least two dozen individual plants there.
After a week or so, there was a fine orange dust at the bottom of the paper cone. In that teaspoon of dust were hundreds of thousands of seeds.