I noticed that also (intra vs inter) but figure it may be a case that inter may not be possible without extra steps. I'd assume tetraploid would overcome that to some extent as it has in many many other plants, just can't find the info I'm looking for.
But yes interdivisional and intersectional are likely being used to mean the same thing. I'm just using division because everything I'm reading refers to the 8 (9?) divisions.
