Exact species of specimen is unknown. Closely matched to G. carnosum in DNA sequence data and morphological features. Another possiblilty for the species of this specimen is G. oregonense, but there are slight discrepancies between the features of the specimen and the description of G. oregonense.
Dave Carmean added this from previous submittal:
Basidiospores:
Spores are brown, ellipsoid, with a slightly truncated apex. They are negative in Melzer’s reagent. There are two walls, a hyaline outer wall apparent only near the apex of the spore, and a darker brown inner wall that appears to be verrucose and rough. Spores are 10-15um in length, and 7-10um in width.
Basidiocarp:
The pileus is approximately 10 cm in width, and is roughly oval. A stalk __cm in width and ___cm in length connects the pileus to the conifer stump. The surface of the pileus is lacquered dark burgundy in colour, dusted with a cocoa-brown layer of basidiospores overtop. The pore surface is white-cream in colour when the specimen is fresh; becomes brown when rubbed against or after the specimen is dried. Pores are roughly circular to angular, approximately ___m in diameter. There is a sharp margin between the pore surface and pileus surface (i.e. no defined white margin as in young G. lucidum); margin is concolourous with pileus, however, this may vary depending on the age of the specimen. The pileus surface contains elongated, thick-walled, yellow end cells which form a dense palisade layer perpendicular to the surface. This layer is not amyloid in Melzer’s reagent.