I'll post up the botanical shanty tomorrow for those who are interested.
Many thanks to everyone for their very interesting contributions! Thanks Praise & KC - I'll look into the membership section above.
By the way, if I seem to have gone off on a tangent with the piranha theory above, let me explain why. Bearing in mind the possibility of "Boat a turnin' now, we are somebody o'er": if a man did go "o'er" it would then have been extremely important to "turn the boat" as quickly as possible, or it would have been too late!
Any takers?
Cheers - Chris