| Classification | Fungi: Basidiomycota: Pucciniomycetes: Pucciniales: Pucciniaceae: Aecidium | 
| Harvard University Herbaria Barcode(s) | 01012829 | 
| Collector | A. B. Seymour | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Hampden County: Granville | 
| Locality | [no additional data] | 
| Date Collected | 1883-06-** | 
| Host | Lactuca or Mulgedium | 
| Project | Microfungi TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6e144a4b-f864-4764-ac1b-6320304167ec | 
| Harvard University Herbaria Barcode | 01012829 | 
| Herbarium | FH | 
| Previous ownership | ex Herb. W. G. Farlow | 
| Family | Pucciniaceae | 
| Determination | Aecidium sp. | 
| Determination Remarks | [current name] | 
| Family | Pucciniaceae | 
| Determination | Aecidium compositarium Martius | 
| Determination Remarks | [filed under] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |