| Classification | Lichens: Rhizocarpon |
| Barcode(s) | 00991298 |
| Collector | P. F. May |
| Collector number | 503-112 |
| 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 3-5, N. flank of Todd-Clark Ridge |
| Georeference | 42.6448° N, 72.9498° W NAD83 |
| Date Collected | 2005-09-24 |
| Elevation | 220 - 315 m |
| Habitat | mixed hardwood-hemlock [Tsuga] forest on steep slope, with Quercus rubra dominant |
| Container | Lichens of Mohawk Trail State Forest |
| Substrate | [on rock, saxicolous]; Saxicolous, on schist |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3890e7b0-e209-43ef-8f6e-0705b6dc95fe |
| Harvard University Herbaria Barcode | 00991298 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Determination | Rhizocarpon hochstetteri (Körber) Vainio |
| Determined by | May, Philip F. |
| Determination Remarks | [filed under] [label name] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |