James Bayley Butler with the Royal Army Medical Corps, beginning as a lieutenant in 1915 and retiring a major after the war. For his service, he was awarded an MBE. Butler's primary research interest was in applied biology. He carried out research on "Catenaria anguillulae", a parasite of the ova of the liver fluke, from 1922 to 1932. Later on, Butler focused on the control of wood-boring beetles and the fungus that causes dry rot in wood "Serpula lacrymans". On this matter, he became an international expert, and assisted in the development of the company Biotox, which manufactured insecticides and fungicides for use
Pulvinic acid acid, isoxerocomic acid, variegatic acid, variegatorubin, xerocomorubin, chinomethide, methyl bovinate, pulvinone, badion A, norbadion A, bisnorbadiochinone A, pisochinone, and sclerocitrin. Pulvinic acid Pulvinic acid is a natural chemical pigment found in some lichens. Dimers of pulvinic acid have been found in the fungi "Scleroderma citrinum" and "Chalciporus piperatus". Hydroxypulvinic acid pigments (pulvinic acid type family of pigments) have been found in "Boletus" (e.g. "Boletus erythropus"), "Boletinus", "Chalciporus", "Gyrodon", "Leccinum", "Pulveroboletus", "Suillus" (e.g. "Suillus luteus", "Suillus bovinus", and "Suillus grevillei"), "Paxillus" (e.g. "Paxillus involutus"), "Serpula" (e.g. "Serpula lacrymans"), "Xerocomus" (e.g. "Xerocomus chrysenteron"), "Hygrophoropsis" (e.g. "Hygrophoropsis aurantiaca"), "Retiboletus" (e.g. "Retiboletus nigerrimus"), "Pulveroboletus"