| Classification | Marchantiaceae: Marchantia | 
| Harvard University Herbaria Barcode(s) | 00784244 | 
| Collector | G. W. Staples | 
| Collector number | 1740 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Watertown | 
| Locality | Boylston St., at 86 Boylston St. | 
| Georeference | 42° 22' 03" N, 71° 10' 10" W | 
| Date Collected | 2019-11-02 | 
| Habitat | Growing in side garden; Found on damp soil at base of a west-facing wall of the house. Soil is mixed clay-gravel | 
| Container | Plants of Massachusetts | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/599465a6-5ebb-4211-b005-674e204d82f9 | 
| Harvard University Herbaria Barcode | 00784244 | 
| Herbarium | FH | 
| Family | Marchantiaceae | 
| Determination | Marchantia polymorpha Linnaeus | 
| Determined by | Tocci, Genevieve E. | 
| Determination Remarks | [filed under] [label name] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Packet | 
| Preparation Method | Dried | 
| Description | Plant body appressed to substrate, dark green, with a few raised circular gemmae cups visible here and there. One frond has an erect palm-like fruiting body attached. |