Collection location: Stillwater, Pennsylvania, USA [Click for map]
Who: Dave W (Dave W)
Project: Northeast Bolete Consortium
Two fruit bodies growing about 10 inches apart. More mature mushroom had small areas of interior lower stipe context stain slowly turquoise and no staining in the upper stipe. Smaller mushroom had turquoise stain on outer stipe surface while in-situ, developed very slight slow turquoise staining in small patches inside the lower stipe, and also developed pinkish-tan staining inside upper stipe.
Spores from print: 17-23 × 6-7.
Open woods with mature white pine, oak, maple. Looked for birch but found no birch. I’ll return to this spot and check more carefully for birch.
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Glad to hear that you found the mycorrizal host that explains the occurrence of this collection.
Indeed, there are a few birch trees in the vicinity of where these mushrooms were found. The mushrooms were growing in an open area beneath a large white pine. The pine was surrounded by a variety of variously sized hardwoods, oaks, maples and another unidentified type being the largest. Three types of fairly small trees present were beech, a smooth-barked type of maple, and some sweet birch with what seemed to me to be unusually light-colored bark for this type tree. So, the small birch trees were fairly well hidden. I initially though they were beech trees.
This observation of yours reminds me of a number of collections I made last year (e.g., obs 281644, obs 287648, and obs 288622). I cannot tell if they are all the same without doing at least some basic microscopy. I hope to eventually DNA barcode them.
Yes, look for that birch tree – it’s got to be there! Based on the research of den Bakker & Noordeloos, it’s very unlikely this scaber stalk is mycorrhizal with oaks or conifers.
Created: 2018-06-13 10:09:55 PDT (-0700)
Last modified: 2018-06-25 19:26:40 PDT (-0700)
Viewed: 46 times, last viewed: 2018-12-30 04:21:29 PST (-0800)