1. A disease of Norway spruce (Picea excelsa (Lam. Link.) associated with Stereum sanguinolentum (A. et S.) Fr. and Pleurotus mitis (Pers.) Fr.; 2. Studies on the biology of Auricularia auricula-Judae (Linn.) Schroet. (Hirneola auricula-Judae (Linn.) Berk.) causing rot in elder (Sambucus nigra L.); 3. An oak (Cuercus robur Linn.) canker caused by Stereum rugosum (Pers.) Fr.