mel turner schreef
Would "berries" include "pepos"? [Probably it should.]

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Yes
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Is an avocado a regarded as a "vegetable" or an oily
nonsweet "fruit"? If a "vegetable", is it a drupe or a 1-seeded
berry? Drupe, as I recall. There reportedly is a thin stony
endocarp, not just a seed coat.

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The lecture I attended had them as berries, but the lecturer was notably
unsure of his ground, making some other errors as well. Actually we were
worried also about Callicarpa. The local flora (the equivalent of Stewart
Robert Hinsley's Stace) describes them as berry-like drupes (which is
wonderful for education purposes).

Their being drupes is supported by
http://www.biosurvey.ou.edu/shrub/caam2.htm

one of the examples of a drupe with multiple stones in them, I suppose.
Hard to demonstrate (their being drupes) in the field anyway!
PvR