| Classification | Potamogetonaceae: Potamogeton |
| Harvard University Herbaria Barcode(s) | 00273591 |
| Type Status | Isotype |
| Collector | T. Morong |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Natick |
| Locality | So. Natick, Mass. |
| Locality Remarks | In a letter to me dated Jan. 20-1893, Dr. Thos. Morong says: "P. pusillus, v. polyphyllus is scarce. Never occurs in fruit - only with propagating buds." — Walter Deane, Jan. 21-1893 |
| Date Collected | 1879-08-29 |
| Container | North American Naiadaceae |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ab3e7515-5fb7-45de-9554-507f5a20e4a4 |
| Harvard University Herbaria Barcode | 00273591 |
| Herbarium | NEBC |
| Previous ownership | Ex. Herb. Thomas Morong; [Ex] Herbarium of Walter Deane. Bequeathed to the New England Botanical Club. Received August, 1930 |
| Family | Potamogetonaceae |
| Type Status | Isotype |
| Isotype of | Potamogeton pusillus var. polyphyllus Morong |
| Verified by | Reveal, James Lauritz & Kaplan, Zdenek |
| Date Determined | 2012 |
| Determination Remarks | [filed under] |
| Annotation Text | Isotype! [Holotype: (NY)] |
| Taxon Reference | (for Potamogeton pusillus var. polyphyllus Morong) Bot. Gaz. 1880. 5(5): 51. |
| Family | Potamogetonaceae |
| Determination | Potamogeton berchtoldii Fieber |
| Determined by | Hanrahan, Danielle |
| Date Determined | 2015-11-** |
| Determination Remarks | [current name] |
| Annotation Text | fide James L. Reveal (BH) & Z. Kaplan (NY) |
| Family | Potamogetonaceae |
| Determination | Potamogeton pusillus var. polyphyllus Morong |
| Determination Remarks | [label name] |
| Family | Potamogetonaceae |
| Determination | Potamogeton pusillus var. polyphyllus Morong |
| Determined by | Fernald, Merritt Lyndon |
| Date Determined | 1908-06-28 |
| Annotation Text | Fide |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
