I don't know about O.stacyi for it is not a Brazilian species, but from what
I see regarding Brazilian natural hybrids, (which I am not particularly
interestd in), we have maybe 200 of them described, most to Cattleya and
Laelia, some to Catasetum, some to Oncidium, and few other scattered.
The thing is I guess 95% of them are eventualities, a plant found once and
never again or just a couple of times, and not something to be found all
around. Most of them have not natural pollinators and sometimes bloom at
diferent times than one or both parents so back crossings are not possible.
Exist due to an early or late bloom of particular individual parents or
because a perverted insect lived around.
Exceptions to this rule are some well known Cattleya (or LC) which where so
successfull that the parents can not even see around anymore, all population
became breeded. This happens with C. mesquitae, C. dolosa and sometimes with
C. silvana. It seems C. duckeana is another of them but not sure here.
Further than that, there are crossings that most of people has not bothered
to clearify enough to date. One that I can remeber now created one of the
most intrincated ID problems. The Maxillaria madida and Max. cogniauxiana
complexes. There are so many degrees of variation that is quite hard to
split species belonging to these groups. There are other Max. also quite
variable. Max. picta complex is one of them, I believe due to early
breedings.
So is Onc. stacyi a frequent seen species in nature? I had one back in the
late 70s, but she didn't want to live under my rules and left me, therefore
I got traumatized and never gave she a second chance. She was beautiful tho.
Dalton
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