| Classification | Lecanoraceae: Lecanora | 
| Harvard University Herbaria Barcode(s) | 00979140 | 
| Collector | P. F. May | 
| Collector number | 2946 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Concord | 
| Locality | Estabrook Woods, Mink Pond | 
| Date Collected | 1995-10-30 | 
| Elevation | 30 m | 
| Habitat | on bark of deciduous snag, mixed, mostly deciduous forest with Acer and Quercus species | 
| Container | Lichens of Massachusetts | 
| Substrate | on bark [corticolous]; on bark of deciduous snag | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6278b62f-85e6-4d61-9df4-5ac0b08159d9 | 
| Harvard University Herbaria Barcode | 00979140 | 
| Herbarium | FH | 
| Previous ownership | ex Herbarium of Philip F. May | 
| Family | Lecanoraceae | 
| Determination | Lecanora sp. | 
| Determined by | May, Philip F. | 
| Determination Remarks | [filed under] [label name] [current name] | 
| Annotation Text | TLC (37-A): usnic acid, zeorin, unknown triterpene [, very weak atranorin]; conceivably Megalospora tuberculosa (same chemistry), but probably not | 
| Preparation Type | Packet | 
| Preparation Method | Dried |