#s 1, 3 and 4 are Boletes. #1 Boletus edulis (King boletus), the best of them all! # 3 and # 4 could be Leccinum, though the stem looks kind of short.
#2 Lactarius scrobiculatus or similar? #5/6 Fulgio septica? growing on grass? not familiar with the tundra! #3/4 is a Leccinum.
I agree with 3&4 these are definetly leccinium. they taste good but I would recomend a soup or dried as they have a very distinct texture and a kind of mild peppery hint to the pallet. they are good though. I didnt eat the stems and I am fine. though as I heard from Rob, they can cause some digestive irritation is some(him included). That first one looks like a real tasty King! that final could that be a cauliflower strain mushroom? looked hearty. Good luck. Sure was a great season for chantrelles!
