I bought this epidendrum at a local nursery. I just noticed that it has an unusual growth on one of the flower spikes. Has anyone seen this before or know what it is?
You'll need to grow them in a sterile agar solution. Oftentimes you can contact a local orchid nursery and pay a fee to have them grow your seed for you, but you have to decide whether or not you want possibly dozens of seedlings to care for. It is a rewarding experience though.