Melampsora

Of the commoner genera _Melampsora_, and _Uromyces_ (Fig.  47, _L_ i), have unicellular teleuto spores; _Puccinia_ (ii) and _Gymnosporangium_, two-celled spores; _Triphragmium_, three-celled; and _Phragmidium_ (iii), four or more.

Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Douglas Houghton Campbell