Serpula lacrymans 2016). The genus "Serpula", including "S. lacrymans" and "S. himantoides", is known to produce three classes of chemical compounds: pulvinic acid-type family, himanimides, and polyine acids. Within the pulvinic acid-type family, atromentin-derived compounds include variegatic acid, xerocomic acid, isoxerocomic acid, atromentic acid, variegatorubin, xerocomorubin, and other variants of these pigments. Pulvinic acid-type family pigments were found to be secreted during co-incubation with various bacteria. Serpula lacrymans Serpula lacrymans is one of the fungi that cause damage to timber referred to as dry rot. It is a basidiomycete in the order Boletales. The species was first described under the name "Boletus
Serpula himantioides appear as distinctive fruiting bodies on the exterior of the host. "S. himantioides" prefers the moist wood of coniferous hosts such as fir, larch, spruce, and pine. It is the causal agent of butt rot disease, the symptoms of which include rotting the heartwood at base of tree, as well as damage to the tap root and cores of lateral roots, but standing trees show no signs of infection. It also a common cause of timber rotting in buildings, which has made this pathogen difficult to differentiate from "S. lacrymans" because of their similarities. This disease often goes unnoticed initially