| Classification | Pertusariaceae: Pertusaria |
| Harvard University Herbaria Barcode(s) | 01006953 |
| Collector | P. F. May |
| Collector number | 3440 |
| 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, Site 4 (Cogbill L3 and T4), slope between entrance gate and Down Summit Road, ca. |
| Georeference | 42° 29' N, 71° 53' W |
| Date Collected | 1997-07-22 |
| Elevation | 425 - 480 m |
| Habitat | shaded E face, NE-facing talus slope with scattered old-growth yellow birches [Betula alleghaniensis] |
| Container | Lichens of Wachusett Mountain |
| Substrate | [on rock, saxicolous]; on gneiss |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/4fdc7210-a3f8-41e1-95c1-9abdb388f92f |
| Harvard University Herbaria Barcode | 01006953 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Family | Pertusariaceae |
| Determination | Pertusaria amara (Acharius) Nylander |
| Determined by | May, Philip F. |
| Determination Remarks | [filed under] [label name] [current name] |
| Annotation Text | soralia KC+ violet, K-, C-, Pd- |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
