Phytophthora infestans is an oomycete (water mold). It causes serious potato and tomato disease known as late blight or potato/tomato blight.
As Alternaria belongs to Class Deuteromycetes and has asexual reproduction by conidia, sexual reproduction is absent. Fungi belong from Deuteromycetes often referred to as “fungi imperfecti” because their only asexual mode of reproduction is reported in them.
Mucor is a filamentous fungus belonging to Division Zygomycota. Mucor reproduces by vegetative (fragmentation), asexual (sporangiospores, oidia, and chlamydospore formation), and sexual (takes place only during the unfavourable conditions by means of gametangial copulation) means.
Agaricus is a genus of mushrooms containing both edible and poisonous species that belong from Division Basidiomycota.