 The fruit bodies, or apothecia, of Banksiamyces species are cup-shaped receptacles borne on a stipe (stalk), colored dark brown to black with a dark grey center. When dry, the apothecia are covered with a whitish powder. The edges of the cup may be rolled inwards (especially when dry), or be twisted and somewhat flattened. Both the outermost tissue layer (the ectal excipulum) and the tissue of the stalk are made of fungal cells with brown pigments that can be variously thick- or thin-walled, covered with small particles (granules), and spherical to ellipsoid. The middle tissue layer (the medullary excipulum) of both the cup and the internal tissue layer (the medulla) of the stalk contain a layer of tissue made of hyphae similar to the ectal excipulum. A second layer of tissue is made of hyphae that are translucent and gelatinous; this layer may be present in either the medullary excipulum, the medulla, or both.
