Fig. 3
a Copy of a violin of Guarneri del Gesù b up: Truffle Beech veneer of Mehling and Wiesmann GmbH; down: production of controlled zone line pattern in dual cultures on birch veneer [24] c Pigmentation of Chlorociboria sp. in wood; up: naturally stained wood; down: controlled spalting in circular veneer [29, 31] and stained Myco-Holz [29, 30]