Sooty leaf

brian cook2

I have a plant with lovely flowers which full off this time of year but the leaf`s are black with a sootlike substance when you bend the leaf back it peels off leaving the leaf shiny

lazy gardener

Leaves-correct spelling

You don't say which plant or if it is inside our outside

Sound though like sooty mould

http://apps.rhs.org.uk/advicesearch/Profile.aspx?pid=770

does that help?