It has been observed in Norwegian Pines that an 'Arboreal Nepotism' exists in which billions of hyphae as fine as gossamer, created by fungi around their roots, allow 'mother' trees to nourish saplings. They can recognise their own species (or close relations) through the tips of their roots, and tend to feed more to these trees!
Scots (Baltic) Pine formed the first northern Boreal forest cover. Today, it is one of the most important timber species, used for Scandinavian furniture, window frames, door and interiors.
European Black Pine forms huge quantities of pollen and this enables it to blow powder into the female flowers. During this period, it is a big danger for hay fever sufferers.
Roman troops were fed on pine nuts whilst on the march in England. The nut seed coats have been found on former military campsites in refuse remains.