 The host spectrum of the Amylostereaceae comprises several , partially very different genera of <unk> . A. chailletii usually <unk> <unk> such as firs ( <unk> ) and spruces ( <unk> ) , but also cedars ( <unk> ) and Douglas firs ( <unk> ) . A. areolatum has a similar host spectrum , which uses mainly firs , Japanese cedars ( <unk> ) , <unk> ( <unk> ) , spruces , pines ( Pinus ) and Douglas firs as hosts . While spruces dominate as hosts in the native habitat , this species is more common in pines on other locations . The host spectrum of A. laevigatum comprises <unk> such as <unk> ( <unk> ) or <unk> ( <unk> ) and the English yew ( <unk> <unk> ) . A. ferreum is , however , only common on <unk> yellowwoods ( <unk> ) . 
