species mushroom family described new species fungus known japan grows dead fallen twigs lowland forests mushroom dull violet grayish violet cap initially covered fine whitish powder smooth matures eventually reaches diameter stem slender long covered stiff white hairs base underneath cap spaced pale brownish gills narrowly attached stem microscopic characteristics mushroom include weakly spores turning bluish black stained melzer reagent club shaped cheilocystidia cystidia gill edge featuring short like absence pleurocystidia cystidia gill face cap cuticle hyphae absence clamp connections taxonomy naming classification species collected japan reported new species publication specific epithet latin word meaning fresh japanese classification fungus unclear depends taxonomic characters deemed important according mushroom violet pigment treated melzer reagent tissue hymenium bearing tissue smooth hyphae outer layer stem suggest placement section defined dutch specialist greater taxonomic emphasis placed weakly appropriate section description cap conical convex bell shaped occasionally low broad reaches diameter moist partly translucent grooves corresponding position gills cap seen surface somewhat changes color loses moisture surface initially covered appears fine white powder remnants universal veil covered immature fruit body soon leaving smooth cap surface dull violet color young somewhat paler near margin flesh thick white lacks distinctive odor taste slender stem long thick cylindrical centrally attached cap hollow surface dry dull violet grayish violet entire length like cap surface initially entirely smooth maturity base stem covered sharp straight stiff white hairs gills narrowly attached stem spaced gills reaching stem gills broad thin pale brownish gill edges color gill faces microscopic characteristics spores roughly ellipsoid measure smooth weakly thin walled basidia spore bearing cells club shaped spored cheilocystidia cystidia gill edge club shaped abundant measure form sterile gill edge near tips short like thin walled cystidia gill face pleurocystidia tissue hyphae wide cylindrical somewhat inflated thin walls smooth cap cuticle parallel bent hyphae wide cylindrical covered scattered finger like hyaline translucent thin walled layer hyphae cap cuticle parallel hyaline pale violet turning reddish reddish brown melzer reagent contain short inflated cells wide stem cuticle parallel bent thin walled hyphae wide cylindrical smooth hyaline pale violet stem tissue running cylindrical hyphae wide smooth clamp connections absent tissues similar species similar north american species distinguished having brown black cap irregularly shaped cheilocystidia covered tips long clamp connections similar european species differs violet cap broadly club shaped cheilocystidia covered numerous evenly spaced clamp connections resembles japanese species described concurrently unlike cap typically pale grayish purple mature cheilocystidia short finger like tips stem cuticle smooth hyphae contrast cap dark violet brown mature cheilocystidia hyphae stem cuticle sparsely covered resemble fingers habitat distribution known japan mushroom found growing solitary scattered dead fallen twigs lowland forests dominated chinese oak
Mycena mustea