I've updated my previous post about cane density, thanks to some helpful corrections from Jean-Marie Heinrich. Some of the terminology I used was incorrect or inaccurate and he also provided more information on his methods.
Since this post got (is getting) a lot of views, I thought I would update it to show these corrections. If you've already read it, go back and have a look again. I think it will make more sense now.
Heinrich also sent me this discovery from under his microscope.
Bassoon Cane Christmas Omen?