Woolly Bird's Nest Fungus 
Woolly chanterelle 
Woolly Milkcap 
Woolly Velvet Polypore 
Wrightoporia austrosinensis 
Wrinkled coral fungus 
Wrinkled crust 
Wrinkled Fieldcap 
Wrinkled peach 
Wrinkled Psathyrella 
Xanthoconium affine 
Xanthoconium purpureum 
Xanthoporia andersonii 
Xenasmatella vaga 
Xerocomellus amylosporus 
Xerocomellus atropurpureus 
Xerocomellus chrysenteron 
Xerocomellus truncatus 
Xerocomus ferrugineus 
Xerocomus hortonii 
Xerocomus illudens 
Xeromphalina cauticinalis 
Xeromphalina cauticinalis pubescentipes 
Xeromphalina cornui