Acervulus
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/37/Ac%C3%A9rvulo_ilustraci%C3%B3n.jpg/220px-Ac%C3%A9rvulo_ilustraci%C3%B3n.jpg)
cu: cuticle, co: conidium, cf: conidiophore, ps: pseudo-parenchymatic stroma, hi: hypha.
An acervulus (pl. acervuli) is a small asexual fruiting body that erupts through the epidermis of host plants parasitised by mitosporic fungi of the form order Melanconiales (Deuteromycota, Coelomycetes). It has the form of a small cushion at the bottom of which short crowded conidiophores are formed. The spores escape through an opening at the top.
Sources
[edit]- Trigiano, Robert Nicholas, Mark Townsend Windham, Alan S. Windham. (2004) Plant Pathology: Concepts and Laboratory Exercises. CRC Press. pp. 11,129,137.