Collection location: Southeast Portland, Multnomah Co., Oregon, USA [Click for map]
All pictures are from a single largish clump of Rhizopogons, which were barely visible under a hump in grass near Douglas fir. This is kind of surprising, because I almost daily walk past this tree, and this is the first Rhizopogon I have found here. Haven’t tried to key it out yet. The peridium is rather dark grayish-brown to grayish-black, with white areas. The gleba is pale brown to olivaceous-brown, with areas of darker brown, bluish-black and vinaceous staining. The peridium has a single mycelial tuft at the base, which all specimens were growing outward from, nearly a columella-like structure as it was over 1/4 inch in diameter. Sub-peridial stains include black, blue-black, vinaceous, and reddish, depending on individual and maturity.
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