| Classification | Pertusariaceae: Pertusaria |
| Harvard University Herbaria Barcode(s) | 00991008 |
| Collector | P. F. May |
| Collector number | 509-50 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Franklin County: Charlemont |
| Locality | Mohawk Trail State Forest, Old Growth Area 2-9, about halfway up S slope of Todd Mountain |
| Georeference | 42.6447° N, 72.9400° W NAD83 |
| Date Collected | 2005-10-21 |
| Elevation | 350 m |
| Habitat | open hardwood forest dominated by Quercus rubra |
| Container | Lichens of Mohawk Trail State Forest |
| Substrate | [on bark, corticolous]; Corticolous, on Quercus rubra |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ac34a22b-ff32-43c3-9726-d07a42cd6b3f |
| Harvard University Herbaria Barcode | 00991008 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Family | Pertusariaceae |
| Determination | Pertusaria trachythallina Erichsen |
| Determined by | Harris, Richard Clinton |
| Date Determined | 2006 |
| Determination Remarks | [filed under] [current name] |
| Annotation Text | KOH+ |
| Family | Pertusariaceae |
| Determination | InQuestion Pertusaria amara (Acharius) Nylander |
| Determined by | May, Philip F. |
| Determination Remarks | [label name] |
| Annotation Text | protocetraric acid by TLC (239-B'); Pertusaria one spore per ascus disciform, stictic vs thamnolic [illegible]; [additional information in packet] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
