Wood-inhabiting fungi of Styria, IV. – Wood-inhabiting fungi in 14 quadrants (= grid mapping units; 1 quadrant = 3’N × 5’E = 5.05 × 6.3 km) of Styria (= Steiermark, Austria) were mapped. 10 quadrants are situated in northern Styria, 4 in the northern part of eastern Styria, in the socalled Schöckl region near Graz. A list of all 677 taxa is presented, including additions and corrections to the previous parts of this series, as well as a few particularly interesting finds from other quadrants of Styria. The basidiolichen Lentaria mucida (= Multiclavula mucida) and several lichen-allied taxa included.