Thank you, gentlemen.
This was probably a Vis+IR shot made with the D300-broadband. I don't recall which filter I was using. It might have been made unfiltered ?? Or it could be the B+W 099 ?? Either way would give a Vis+IR.
I shot with the Nikon 16/3.5 Fisheye-Nikkor, a favorite lens.
ADDED: Oh, duh !!!! I don't have any filters for that Fisheye. So I was def shooting Unfiltered.
I've attached the raw shot here with a Standard picture control and Incandescent white balance. For the edits I converted to black & white to take advantage of the 3 masses of black, grey & white. Some selective burn/dodge and some localized contrast was applied.
You can see that l dodged the living palm fronds to make the presented photo above, so we know this was not really a totally pure IR photograph although it did have lots of IR. The old palm fronds which fall down to make the shaggy trunk were not as IR-reflective and so became the natural choice for the grey above.