| Classification | Pertusariaceae: Pertusaria |
| Harvard University Herbaria Barcode(s) | 01006954 |
| Collector | P. F. May |
| Collector number | 4228 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Worcester County: Princeton |
| Locality | Wachusett Mountain State Reservation, Study Site 6 ("South Talus"), ca 400 m SE of summit, between Down Summit Rd. and Loop Tr. |
| Georeference | 42° 29.2' N, 71° 53.0' W |
| Date Collected | 1998-05-22 |
| Elevation | 500 - 550 m |
| Habitat | steep SE-facing talus slope with open red oak [Quercus rubra]-yellow birch [Betula alleghaniensis] primary forest |
| Container | Lichens of Wachusett Mountain |
| Substrate | [on bark, corticolous]; on bark of Quercus rubra |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/639a9c4d-47da-4f10-b8bf-4bf1acc52140 |
| Harvard University Herbaria Barcode | 01006954 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Family | Pertusariaceae |
| Determination | Pertusaria amara (Acharius) Nylander |
| Determined by | May, Philip F. |
| Determination Remarks | [is filed under name] [is label name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
