Gerwasia holwayi
- kingdom: Fungi
- phylum: Basidiomycota
- class: Pucciniomycetes
- order: Pucciniales
- family: Phragmidiaceae
- genus: Gerwasia
- species: Gerwasia holwayi
Xalapa de Enríquez
Veracruz
Mexico
Gerwasia holwayi
Xalapa de Enríquez