indeterminate growth form in zoosporic fungi. Effectively, a mycelium except usually much finer filaments that are closer in size to rhizoids.
                                                            
                                                     
                        
                                                
                        
                        
                            a enucleate rhizoidial system extensive enough to resemble the indeterminate mycelium produced by Ascomycetes, Basidiomycetes, and Zygomycetes; one of several thallus arrangements in the order Chytridiales.
                                                            
                                                     
                        
                                                
                        
                        
                            Branching, anucleate or sparsely nucleate, rhizoidal filaments of variable width forming part of the thallus in some fungi. (Pl. rhizomycelia.) ( 16)