Gilbert,
I don't claim to have great knowledge of the Tilia family, but I can share what I do know. Firstly, I have no idea which species or which parts one would go about eating, but please share what you have heard. I know there are a handful of lindens that are common ornamentals in the east. Since the North American cousin Basswood (Tilia Americana) is most commonly found in the far North I assume the eurpean Lindens are also cold hardy
enough to be happy in colorado, this is a guess though. Little leaf linden is by far the most common ornamental I see planted. It bears fruits exactly as you descirbe (though basswoods do as well), their main identifier is the true leaf is about the size of a bradford pears or a large aspen leaf. North American basswoods have leaves that are large like a catalpa, they also seem to bear less conspicuous fruits and have a more timber form (very tall very straight). All Tilias sprout well, but I have always heard the reason lindens are more common ornamentals is that they have a lower propensity for
root suckers (I would guess the ornamentals have been selected to minimize this). Basswoods in the woods commonly 3-4 main trunks surrounded by dozens of small suckers...some times many more if the
deer browse is heavy. It would be my hunch that your tree would copice well, but if you suspect if to be a linden I would make certain to cut it back during the dormant season to make sure you don't over stress it on the first attempt. If it is a basswood it won't matter when you cut it, the suckering response will be nigh overwhelming
I know I didn't
answer any of your questions, but I hope that helped a bit
J .