| Classification | Potamogetonaceae: Potamogeton |
| Harvard University Herbaria Barcode(s) | 00273584 |
| Type Status | Isolectotype |
| Collector | T. Morong |
| Country | United States of America |
| State | New York |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: New York: Adirondack Mountains |
| Locality | "Slang River", Adirondacks, N.Y. |
| Date Collected | 1884-08-02 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6f69fa96-d11a-46c4-92e9-698f94072ef7 |
| Harvard University Herbaria Barcode | 00273584 |
| Herbarium | GH |
| Previous ownership | Middlesex Institute |
| Family | Potamogetonaceae |
| Type Status | Isolectotype |
| Isolectotype of | InQuestion Potamogeton heterophyllus f. maximus Morong |
| Verified by | Reveal, James Lauritz & Kaplan, Zdenek |
| Date Determined | 2012 |
| Determination Remarks | [filed under] |
| Annotation Text | ?Isolectotype! [Lectotype NY] |
| Taxon Reference | (for InQuestion Potamogeton heterophyllus f. maximus Morong) Mem. Torrey Bot. Club 1893. 3(2):25. |
| Family | Potamogetonaceae |
| Determination | Potamogeton gramineus Linnaeus |
| Determined by | Hanrahan, Danielle |
| Date Determined | 2015-02-** |
| Determination Remarks | [current name] |
| Annotation Text | fide James L. Reveal (BH) & Z. Kaplan (NY) |
| Family | Potamogetonaceae |
| Determination | Potamogeton gramineus var. maximus Morong ex A. Bennett |
| Determined by | Ogden, Eugene Cecil |
| Date Determined | 1941 |
| Annotation Text | Revision Broad-leaved N. Am. Species of Potamogeton |
| Family | Potamogetonaceae |
| Determination | Potamogeton gramineus var. maximus Morong ex A. Bennett |
| Determination Remarks | [label name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
