Study of the allelopathic effects of the ethanol-soluble extracts of Lactarius hatsudake on Oryza sativa and Echinoloa crusgalli Studies on the Proteoglycans Isolated from the Wild Lactarius deliciosus and Lactarius hatsudak Studies on the Proteoglycans Isolated from the Wild Lactarius deliciosus and Lactarius hatsudak A New Azulene Pigment from the Fruiting Bodies of the Basidiomycete Lactarius hatsudake (Russulaceae)