Kalmar "Family Dematiaceae" tana nufin dangin fungi na haraji. A cikin mycology (nazarin naman gwari), "Dematiaceae" iyali ne na fungi na cikin aji Dothideomycetes a cikin phylum Ascomycota. Iyalin Dematiaceae sun haɗa da rukuni na fungi daban-daban waɗanda ke da alaƙa da launin duhu, sau da yawa melanized, mycelium da spores. Wasu nau'ikan a cikin wannan iyali na iya haifar da cututtuka a cikin tsire-tsire, dabbobi, da mutane, yayin da wasu suna saprophytic, ma'ana suna lalata matattun kwayoyin halitta. Kalmar "Dematiaceae" ta samo asali ne daga kalmar Helenanci "dématos" wanda ke nufin "launi" ko "duhu," yana nufin melanin pigments sau da yawa a cikin bangon tantanin halitta ko spores na waɗannan fungi.