1) Fungus order 2) Order ustilaginales 3) The smut fungi 
Ustinaginales is also known and classified as the `smut fungi`. They are serious plant pathogens, with only the dikaryotic stage being obligately parasitic. ==Morphology== Has a thick-walled resting spore (teliospore), known as the `brand` (burn) spore or chlamydospore. == Economic importance == They can infect corn plants (Zea mays) producing...
The smut fungi; plant parasites in the Basidiomycotina. 
An order of basidiomycetous fungi; some species are parasitic on grasses and maise. ... (12 Dec 1998) ... 
[n] - parasitic fungi causing smuts
order Ustilaginales noun parasitic fungi causing smuts; sometimes placed in class Tiliomycetes