Don Keim, I couldn't say it is a sequentaial bloomer, it is flowering for a while now and just doing a new spikes.
Kathi: most of my orhcids are little, tiny species, mainly because of lack of space. They are all dear to me but if I have to expose particularly species.... I think Haraella retrocalla is a must have! It has fragrance that has a sort of lemony note. This plant can bloom any time of year, and is often either in spike, bud, or bloom.