Hermaphroditic flowers blooming unseasonably on an oak tree (»the green oak«) of uncertain hybrid origin prompted a detailed investigation into the biology of the flowering, and the morphology of various traits of the tree, which is growing in an urban area near Zadar, northern Dalmatia, Croatia. Hermaphroditic flowers were also detected on one holm oak tree from Weihenstephan, Germany. Since t...

Taxonomical notes on Capronia leopoldiana s.l., Niesslia globispora, Opegrapha foreaui, Scutula miliaris, and Stictographa dirinariicola are provided. foreaui is reported as new to China, Tanzania continental Africa, Xenonectriella physciacearum which the first confirmed report for Asia. Phaeophyscia melanchra host species physciacearum.