A drupe consists of exocarp, mesocarp, endocarp and seed.

And if the amateur botanist is in the dark about all these distinctions, is it
called carpel tunnel syndrome?
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)