| Classification | Potamogetonaceae: Potamogeton |
| Harvard University Herbaria Barcode(s) | 00273583 |
| 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 | Adirondacs, N. Y. Saranac River |
| Date Collected | 1884-07-31 |
| Habitat | strong current |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/04c5b497-b18c-45a5-9bf4-e6d19217792e |
| Harvard University Herbaria Barcode | 00273583 |
| Herbarium | GH |
| Previous ownership | Ex Herbarium Thos. Morong, Sept. 7, 1886. [Ex] Herbarium of Walter Deane; Bequeathed to the Gray Herbarium, received August, 1930 |
| Family | Potamogetonaceae |
| Determination | Potamogeton gramineus var. maximus Morong ex A. Bennett |
| Determination Remarks | [is label name] |
| Family | Potamogetonaceae |
| Determination | Potamogeton heterophyllus f. maximus Morong |
| Determined by | Fernald, Merritt Lyndon |
| Date Determined | 1908-06-28 |
| Annotation Text | Fide. Ex Thos. Morong. Sept. 7, 1886 [annotation on label] |
| Family | Potamogetonaceae |
| Determination | Potamogeton gramineus var. maximus Morong ex A. Bennett |
| Determined by | Ogden, Eugene Cecil |
| Date Determined | 1941 |
| Determination Remarks | [0] |
| Annotation Text | Revision Broad-leaved N. Am. Species of Potamogeton |
| Family | Potamogetonaceae |
| Determination | Potamogeton gramineus Linnaeus |
| Determined by | Hanrahan, Danielle |
| Date Determined | 2015-01-** |
| Determination Remarks | [is Current name] |
| Annotation Text | fide James L. Reveal (BH) & Z. Kaplan (NY) |
| 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 | [is filed under name] |
| Annotation Text | ?Isolectotype! [Lectotype: (NY)] |
| Taxon Reference | (for InQuestion Potamogeton heterophyllus f. maximus Morong) Mem. Torrey Bot. Club 1893. 3(2):25. |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
