| Classification | Lichens: Rhizocarpon |
| Harvard University Herbaria Barcode(s) | 00991316 |
| Collector | P. F. May |
| Collector number | 450-4 |
| Country | United States of America |
| State | Connecticut |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Connecticut: Litchfield County: Norfolk |
| Locality | Great Mountain Wood, along trail to fire tower |
| Georeference | 41° 56.82' N, 73° 15.69' W |
| Date Collected | 2003-09-19 |
| Elevation | 335 m |
| Habitat | mixed hardwood forest and open gneiss ledges |
| Container | Lichens of the 2003 Andrews Foray |
| Substrate | [on rock, saxicolous]; Saxicolous, on gneiss |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/159cd6a3-340d-4df2-91c1-08847abb7947 |
| Harvard University Herbaria Barcode | 00991316 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Determination | Rhizocarpon reductum Th. Fries |
| Determined by | May, Philip F. |
| Determination Remarks | [is filed under name] [is label name] [is Current name] |
| Annotation Text | thallus K+ red |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
