| Classification | Fungi: Ascomycota: Porpidiaceae: Porpidia | 
| Harvard University Herbaria Barcode(s) | 00259651 | 
| Collector | C. M. Wetmore | 
| Collector number | 93271 | 
| Country | United States of America | 
| State | Michigan | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Keweenaw County | 
| Locality | Around Clark Mine 92 mi SSE of Copper Harbor). Around mine tailings with balsam fir, quaking aspen, and white birch Sec. 9, T58N, R28W | 
| Georeference | 47.445, -87.86027778 Method: Unknown | 
| Date Collected | 2005-07-20 | 
| Elevation | 278 m | 
| Container | Lichens of Michigan, Keweenaw County | 
| Substrate | on rock [saxicolous] | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/020ee389-caa7-46ca-afe3-5cb41a36b903 | 
| Harvard University Herbaria Barcode | 00259651 | 
| Herbarium | FH | 
| Family | Porpidiaceae | 
| Determination | Porpidia crustulata (Acharius) Hertel & Knoph | 
| Determination Remarks | [filed under] [label name] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |