... although I don't always "see" fruit as notionally plural.
Maybe, for this particular case, "notionally plural" is a poor choice of words, Contrex. What I am trying to get at is that though we treat 'fruit' like a mass noun in a grammatical sense we don't view like, say, spaghetti. We see a group of different fruits as individual fruits, meant to be eaten in an individual fashion.
Funny that vegetables, eaten more as mass foods, is dealt with, grammatically, as individual items.
"That's nice fruit"
??"That's nice vegetables"??