| Classification | Pertusariaceae: Pertusaria |
| Harvard University Herbaria Barcode(s) | 01006974 |
| Collector | P. F. May |
| Collector number | 2490 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Berkshire County: Adams |
| Locality | Mt. Greylock State Reservation, Tuckerman Workshop Site 9, Mount Fitch, between summit and Notch Road |
| Georeference | 42° 39.27' N, 73° 09.91' W |
| Date Collected | 1995-05-08 |
| Elevation | 825 m |
| Habitat | open hardwood forest with many fallen trees and no shrubs; Fagus grandifolia, Betula alleghaniensis, Acer rubrum, Prunus |
| Container | Lichens of Massachusetts |
| Substrate | [on bark, corticolous]; on bark of Betula alleghaniensis |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e24ae790-fe7b-4f3c-9a16-126a70dbe4e6 |
| Harvard University Herbaria Barcode | 01006974 |
| Herbarium | FH |
| Previous ownership | ex Herbarium of Philip F. May |
| Family | Pertusariaceae |
| Determination | Pertusaria macounii (I. M. Lamb) Dibben |
| Determined by | May, Philip F. |
| Determination Remarks | [filed under] [label name] [current name] |
| Annotation Text | spores 94, 117, 2 per ascus. Imm spores violet. All spot tests neg. Cortex UV+ deep orange. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Packet |
| Preparation Method | Dried |
