Pinecone Cap?

A long subterranean root that I carefully dug out. The stem was tough and I think the root was also fairly tough. Growing a few metres from some sort of pine tree (6th photo) and another coniferous species was growing marginally further away (I have photos but photo limit stops me uploading them). I think the length of root I managed to pull out was 3-4cm judging by the photo next to my finger and the fruitbody 2-3cm tall and 1-2cm diameter cap. I think spore print was white but I did it on a dark glazed ceramic coaster so it was hard to tell. I don't remember the cap as being slimy and according to rogersmushrooms usually the caps of Xerula radicata are 5-15cm: http://www.rogersmushrooms.com/gallery/DisplayBlock~bid~6556~gid~~sourc… This similar-ish rooting mushroom was growing a few hundred metres away probably although the stem seemed substantially thinner and mushroom generally smaller: http://www.projectnoah.org/spottings/23173113 Flammulina populicola? Xerula radicata? Strobilurus tenacellus? S. esculentus? Mycena inclinata?