Phylum:Basidiomycota >> Class: Basidiomycetes >>  Order: Poriales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Grifola frondosa

Grifola frondosa (Dicks.:Fr.) S. F. Gray., Nat. Arr. Brit. Plants 1: 643. 1821.

 Description: Basidiocarp annual, stipitate, stipe branched from a major base, forming numbers of imbricate, petaloid or flabelliform pilei, up to 4 cm wide and 1 cm thick in individual pileus, upper surface pale olive-buff at first, becoming wood brown to buffy brown when dry, azonate, very finely tomentose to glabrous, smooth, margin thin, curved downwards when dry. Pores angular to elongate, 2-4 per mm, with thin, often lacerate dissepiments, pore surface cream to ivory white. Context ivory white, up to 6 mm thick. Tube layer decurrent on the stipe, up to 4 mm thick, odor pleasant. Hyphal system dimitic; generative hyphae hyaline, thin-walled, with clamps, up to 5 μm wide, skeletal hyphae thick-walled, aseptate, unbranched to infrequently branched, up to 6 μm wide. Basidiospores ovoid to ellipsoid, hyaline, smooth, 6-7 × 4-5 μm, IKI-.

Taiwan, Nantou : Tsuifeng, alt. 2350 m, on rotten hardwood, Aug 2002, CWN 5839.

 Habitat: Lignicolous causing white rot of wood.

Widely distributed in the temperate zone.


Chang, TT and Chou, WN. 2003a.


T. T. Chang

 Note: The profusely branched basidiomata with many petaloid pilei characterize the fungus. Polyporus umbellatus Pers:Fr. and Meripilus giganteus (Fr.) P. Karst. share the character of profusely branched basidiomata with G. frondosa. However, P. umbellatus has cylindric basidiospores while M. giganteus has simple-septate generative hyphae.