Thank you Cali for showing the bunches of cyclamen flowers, as Alisdair said you can almost smell the perfume just looking at them.
As far as I am aware Cyclamen graecum has not been found on Corfu. It was not encountered on the Cyclamen Society field study in 2008 and I have not found it, or any spring flowering species, on a number of private visits.
I have included three photos showing the range of flower colours to be found on the island all of which I imagine you are familiar with.They are all C.hederifolium.
C. confusum does not grow on Corfu, as far as we know, and has so far only been identified from the west of Crete. As to whether the Corfu plants include ssp. crassifolium I think it probably does but that is the subject of continuing research. The Cyclamen Society have so far studied plants in the Ionian Islands of Zakinthos, Corfu and Kythera, next month field studies will be undertaken in Kefalonia. Hopefully we will soon know a little more about C.hederifolium ssp crassifolium