[yebyen]

This is an example of canonical documentation doing exactly the same thing I just described. I am no more enlightened about what a "rump kernel" is than before I read the paragraph.

Is the implication that we're tossing out the head, neck, loins, bones, organs, etc. and only the delicious bacon of the original kernel is kept? The rump is the part?

[baseballmerpeak]

Yes, the rump (of the) kernel.