| In the young stage the basidia in the Hypogi are easily distinguished by the aid of the microscope. |
| They resemble each other very much, except that the basidia bear four sterigmata and a spore on each. |
| Then there will be either lamellae, or gills, or pores, with hymenial layers bearing the basidia. |
| At the microscopic level the basidiospores are shot off basidia and then fall between the gills in the dead air space. |
| Most of basidiomycetes are characterized by the large sporophore on which the basidia with its basidiospores are borne. |
| After a few more days of incubation, the ends of some mycelia may enlarge and form basidia within which nuclear fusion and meiosis may occur. |
