Answering your question in the limerick game - rather than clutter up the thing. mallee is a low growing eucalypt. There is an area in (I think) N.W. Victoria where these are endemic and which is known as 'The Mallee'.
OK, Duj - thanks. Nice pong, eucalyptus, probably due to isopropyl and tert-butyl groups attached to an aromatic ring. Better than the assortment of sulphur compounds my aromatic ring tends to produce.
[Rosie] Eee, by gum, lad! The oil of the eucalypt is used for many a 'good' thing; whether or not sulphuric substances fall into any of those catagories is food for thought, though it is oft used as a balm. ;-)