When I bought the boat I wasn't sure of the name, but it seems to have stuck, and is unchanged after now 2 changes of owner since new. Not being au fait with botanical terminology the actual reference was a mystery to me until I sought help from mr Google. It turns out to be a plant genus, and when I later took my annual out-of- season trip to the Eden project I managed to get this snap of one of the varieties. They are part of the bromeliad family and often sold as 'air-plants'.