| Classification | Porellaceae: Madotheca | 
| Barcode(s) | 00506042 | 
| Collector | J. P. Tracy | 
| Collector number | 13720 | 
| Country | United States of America | 
| State | California | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: Humboldt County | 
| Locality | [data not captured] | 
| Date Collected | 1935-03-08 | 
| Project | Lichen and Bryophyte TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8d67fe1b-611f-40d6-b6b2-548028a1e4cc | 
| Harvard University Herbaria Barcode | 00506042 | 
| Herbarium | FH | 
| Family | Porellaceae | 
| Determination |  Madotheca navicularis (Lehmann & Lindenberg) Nees | 
| Determination Remarks |  [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried |