| Classification | Lichens: Arthonia |
| Harvard University Herbaria Barcode(s) | 00377648 |
| Collector | P. F. May |
| Collector number | 2520A |
| 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, near entrance at end of Estabrook Road |
| Date Collected | 1995-04-25 |
| Habitat | on bark of deciduous branch on ground, oak-white pine forest with stone walls |
| Container | Lichens of Massachusetts |
| Substrate | on bark [corticolous]; on bark of deciduous branch |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c561bc18-70d0-4eea-9924-07ff4affe114 |
| Harvard University Herbaria Barcode | 00377648 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Determination | Arthonia caesia (Flotow) Körber |
| Determined by | May, Philip F. |
| Determination Remarks | [is filed under name] [is label name] [is Current name] |
| Preparation Type | Packet |
| Preparation Method | Dried |
