Magnolia C4 = (liliiflora Nigra x Leonard Messel) colchicined
Tekst John Weagle : A breeder's plant as it's a polyploid, might even cross with grandiflora. Flowers can be superb some years. Seed is malformed and never sprouts. Kehr thought this might be a dodecaploid. Cross and treatment was done by Joe Harvey when he lived here. When he moved he left some seedlings with me, 4 were obviously affected by the colchicine and this is the best.