Fulvifomes johnsonianus (Murrill) Y. C. Dai 2010

Fomitiporella johnsoniana Murrill, sp. nov
Effused, inseparable, suborbicular to irregular, rigid, 5 mm. or more thick; margin
thin, flavous, narrowly sterile, undulate, nearly glabrous: context distinctly visible, 2-3
^m. thick in some places, fulvous, corky ; hymenium uneven, stratified; tubes varying in
length, 1-4 mm. long each season, avellaneous-nmbrinous within, fulvous-tinted in the
older layers, mouths angular, 5-6 to a mm., edges thin, entire or slightly dentate, flavous
when young, becoming luteous and finally umbrinous at maturity : spores globose, smooth,
brownish, 3-4/^; hyphae ferruginous ; cystidia none.
Type collected at Ann Arbor, Michigan, on rotten deciduous logs, September 8, 1894, L. N. Johnson 1764.
Distribution : Michigan.