The ecology and geographical distribution of two interesting and rare polypores of the xanthochroic group which grow exclusively on various species of oaks in Czechoslovakia were studied in detail. Inonotus dryadeus is so far known from 35 localities in this country and I. dryophilus is reported in all from 36 localities. The first is a remarkable thermophilic species occurring almost solely in the area of the thermophilic Pannonian flora in Czechoslovakia, whilst the second grows also outside this area.
Kotlaba F. (1973): Two rare quercicolous xanthochroic polypores in Czechoslovakia: Inonotus dryadeus (Pers. ex Fr.) Murrill and I. dryophilus (Berk.)Murrill. – Česká Mykologie 27(2): 69–83.
