That report used to be tucked away here somewhere but I've been unable to find it since the forums were reorganised. Last year I managed to germ 15 leptobulus, from 10 year old seed, 10 just gave up for no apparent reason, heavy winds turned over my mini-greenhouse killing 2 of the survivors and the 3 I managed to plant out were killed by heavy rains  Not really contributing knowledge, just bitching.