Phellinus betulinus (Murrill) Parmasto 2007

Fomitiporella betulina Murrill, sp. nov
Broadly effused, inseparable, rigid ; margin irregular, finely tomentose and fulvous when young, becoming glabrous, smooth and brown or blackish with age : context very thin, punky, fulvous ; hymenium distinctly and many times stratified, 1-3 cm. thick, plane or slightly convex, umbrinous, changing color and refracting the light when young and growing, becoming chestnut-colored with age ; tubes slender, 2-3 mm. long each season, partly stuffed with white mycelium, mouths subcircular, 5-6 to a mm., edges thick, obtuse, entire : spores ovoid, smooth, fulvous, 4-5 /^ long; hyphae fulvous, 3-4^; cystidia fulvous, pointed, ventricose, 10-30 ii in length.
Type collected on Boarstone Mountain, Piscataquis County, Maine, on birch trunks, September 12-14, 1905, W. A. Murrill 2511,
Distribution : Maine and New Hampshire.

Phellinus betulinus je grzib, co go nojprzōd ôpisoł William Alphonso Murrill, a terŏźnõ nazwã doł mu Parmasto 2007. Phellinus betulinus nŏleży do zorty Phellinus i familije Hymenochaetaceae. Żŏdne podgatōnki niy sōm wymianowane we Catalogue of Life.