Four New Species Records of Umbelopsis (Mucoromycotina) from China
Umbelopsis dimorpha. (a) Sporangiophores with various types of branching. (b) Long sporangiophores with columellae. (c) Short sporangiophores with different types of branching and one-spored sporangiola. (d) Short sporangiophores without columellae. (e) Multispored sporangia. (f) Sporangiospores, note that the smaller angular ones are from multispored sporangia, and the larger globose ones are from one-spored sporangiola.