Hi Folks, I have a Dendrobium which I won in the raffle at the first IOS meeting I ever attended. Over several years it has grown new corms with new leaves. However it has also successively dropped all these leaves and had none for a long time. Recently it has sprouted a new corm from the top of an old one and this now has leaves plus roots. (see photo). I don’t know whether i should cut this off and replant as a new plant, or maybe these roots are air roots. They are all growing down and getting longer by the day! Or should I just leave it as is? Any advice is appreciated.

Thanks,
Raghnall.