Gorgeous flowers, Brenda and as Ibis said, can't wait to see the Onc. burst into bloom.
As far as starting orchids from seed, I don't think any of us have tried it. They start out very tiny and take so very long - 3 to 5 years - to grow and mature enough to bloom. That's the reason they're relatively expensive compared to other plants.
Commercial growers use sterile conditions to germinate and grow baby orchids in flasks to ensure a high rate of survival, but in the wild, orchids just produce a gazillion seeds to ensure that at least some baby plants will live. If your B. nodosa is in an oak tree, I would think that's the most friendly environment you could give it to release seeds and reproduce on its own. But I wouldn't set your heart on seeing a lot of seedlings.
Here's an article on it:
http://homeguides.sfgate.com/g... Pretty much describes the complications entailed. There's also a youtube video on it. Just Google "growing orchids from seed".
