| Classification | Porellaceae: Porella | 
| Harvard University Herbaria Barcode(s) | 01091407 | 
| Collector | J. W. Robbins | 
| Country | United States of America | 
| State | Michigan | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan | 
| Locality | Keweenaw Peninsula, upper superior lake | 
| Date Collected | 1863 | 
| Container | Plantae Lacus Superioris Robbinsianae | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f4dcf37f-dc29-4eb5-9474-6e795fbb07a6 | 
| Harvard University Herbaria Barcode | 01091407 | 
| Herbarium | FH | 
| Previous ownership | Gift of Anna Marie Murphy Reid | 
| Family | Porellaceae | 
| Determination | InQuestion Porella roellii Stephani | 
| Determined by | Hutchinson, Ethel Priscilla | 
| Determination Remarks | [filed under] [current name] | 
| Family | Porellaceae | 
| Determination | Porella platyphylloidea (Schweinitz) Lindberg | 
| Determined by | Rissanen, William | 
| Determination Remarks | [label name] | 
| Preparation Type | Packet | 
| Preparation Method | Dried |