|From BnF MS Fr. 25526, a 14th-century copy of the Romance of the Rose|
Well, one can only presume if they weren't harvested while firm, they would go soft and eventually fall off the tree? I really don't know.
Apparently this sort of thing happened often in medieval times, because backtracking through links, I found a post that included this carving as well:
|a contemporaneous altar carving|
And further research yielded this illumination:
I gathered my courage and Google image searched, and it turns out that this may not have been just some medieval superstition... there is modern photographic evidence of this happening with a passion fruit tree in Brazil:
But that's not all! This has happened on at least three other types of trees:
So yeah. I learned something tonight. Penises grow on trees.
Nature. Well then..
**This discovery was first made by my clever friend RainstormDragon. I found it so silly I had to share it. I take no claim for it. You can find the original post here.