Very interesting. I don't know if that boa classifies as a jungle or not. The only way to know for sure if the boa is a jungle is to contact the original breeder and find out the background on the parents. Hopefully that breeder is someone reputable, and not just some person who thinks they have jungles. If you can't trace the lineage, then it would be wrong to classify this animal (or any offspring resulting from any breeding trials) as jungles. However, you can certainly classify them as cool looking boas 
2 comments on this post:
1) If that boa is too big for her daughter, then she must be the smallest person on the planet. That boa looks like it's only 2 feet long, lol.
2) I think it has a pretty neat look to it regardless of possibly being a jungle. If it's only $50 and you like it, then you should buy it. I'm sure you'll give it a much better home than the seller will.
-Anthony