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

Iris Cohen schreef
And if the amateur botanist is in the dark about all these distinctions,
is it called carpel tunnel syndrome?

+ + +
Depends.
The professional botanist is said to suffer from carpel tunnel vision.
The amateur likely just feels lost at sea, and is on the lookout for a
carpel tunnel steamer.
PvR