ˌ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ˈnā(ˌ)lēz noun plural
Usage: capitalized
Etymology: New Latin, from Ustilagin-, Ustilago + -ales
: an order of parasitic basidiomycetous fungi that cause smuts of various plants and especially of cereal grasses and have a complex life cycle which may include conidia production and in which sessile haploid basidiospores ultimately yield thick-walled dark-colored chlamydospores which typically replace the ovaries of an infected plant in a smutty mass and germinate with a meiosis to form a promycelium and begin a new basidial generation — compare uredinales , ustilago ; see tilletiaceae