| Classification | Porellaceae: Madotheca |
| Harvard University Herbaria Barcode(s) | 00506328 |
| Collector | H. L. Mason |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Marin County |
| Locality | [data not captured] |
| Date Collected | 1925-02-** |
| Project | Lichen and Bryophyte TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ae798680-91c8-422c-842a-738aa44bbe7a |
| Harvard University Herbaria Barcode | 00506328 |
| Herbarium | FH |
| Family | Porellaceae |
| Determination | Madotheca rivularis Nees |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
