the white birch loving Leccinum, there are often a number of them scattered about here and there, which leads me to guess they are holopus. Would an albinistic form of some Leccinum species tend to dominate a fruiting? Holopus types are listed by B/R/B as found in association with birch in bogs, but I have also seen them in mossy areas along upland trails in Vermont. Sometimes I find white specimens of L. scabrum (a common birch associate), but these often are seen in groups along with others that are gray capped.
