| Name | Puccinia extensicola var. hydnoidea (Berkeley & M. A. Curtis) Arthur | 
| Authorship | (Berkeley & M. A. Curtis) Arthur | 
| Rank | Variety | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Puccinia extensicola Plowright | 
| Citation | 1934 Man. Rusts 200 | 
| Holdings | 14 Specimens held in the Harvard University Herbaria identified as Puccinia extensicola var. hydnoidea (Berkeley & M. A. Curtis) Arthur | 
| Identification made in | [no date] (14) |