<i>"Pycnandra acuminata is a large (up to 20m tall) rare rainforest tree, restricted to remaining patches of rainforest in New Caledonia," says Dr Antony van der Ent</i><p>If ever there was an appropriate name for a tree researcher!<p>This sounds like it could have multiple potential uses, if we can figure it out, and maybe if we can genericise it - Nickel is toxic, but its far from the only metal contaminant . If this could be adapted to, for instance, help process landfill sites, that could be big news.