Microscopic structures of Skeletocutis ochroalba (reproduced after Niemelä (1985)). A spores B encrusted tomentum hyphae arising from dense cortical tissue C section through context, showing generative and skeletal hyphae and ramified side-branches resembling binding hyphae D ramified arbuscule-like binding hypha, arising from a generative hypha E dissepiment edge hyphae F cystidioles and basidioles G vertical section through a dissepiment edge, showing trama, hymenium with a hyphal peg and sparsely encrusted dissepiment edge hyphae.