Rust (fungus) only uredinia and telia. Spermagonia may be absent from each type but especially the microcyclic life cycle. In macrocyclic and demicyclic life cycles, the rust may be either host alternating (heteroecious), i.e., the aecial state is on one kind of plant but the telial state on a different and unrelated plant, or non-host alternating (autoecious), i.e., the aecial and telial states on the same kind of plant. Heteroecious rust fungi require two unrelated hosts to complete their life cycle, with the primary host being infected by aeciospores and the alternate host being infected with basidiospores. This can be contrasted with
Rust monster armor, four mammal-like legs, two long antennae and a scaly prehensile tail ending in what appears to be a propeller. In this edition, the rust monster consumed all metal, although it still preferred ferrous metals over copper, gold or platinum. It had no bite, tail or claw attack, but the rust monster could smell metal from 90 feet away, and with an increase to its already rapid speed—it now moved six times faster than the average character—it would rapidly close and attempt to touch its antennae to metal, thereby causing the object to instantly corrode. (Magical weapons had a small