| Classification | Potamogetonaceae: Potamogeton | 
| Complex Object | This is a complex collection object (2 items with 1 preparation) | 
| Barcode(s) | <a href='specimen_search.php?barcode='>00273597</a> | 
<tr><td class='cap'>Other Barcodes on Sheet</td><td class='val'><a href='specimen_search.php?mode=details&barcode=00273598'>00273598</a></td></tr>| Type Status | Isolectotype | 
| Collector | J. W. Robbins | 
| Country | United States of America | 
| State | Michigan | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan | 
| Locality | ex "Ontonagon river" | 
| Date Collected | 1863 | 
| Container | Plantae Lacus Superioris Robbinsianae | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f6726732-a074-4a57-bf47-3f3a0f7530ce | 
| Harvard University Herbaria Barcode | 00273597 | 
| Herbarium | GH | 
| Family | Potamogetonaceae | 
| Type Status |  Isolectotype | 
| Isolectotype of |  Potamogeton perfoliatus var. lanceolatus J. W. Robbins | 
| Verified by | Reveal, James Lauritz & Kaplan, Zdenek | 
| Date Determined | 2012 | 
| Determination Remarks |  [filed under] | 
| Annotation Text | Isolectotype! [Lectotype (NY)] | 
| Taxon Reference | (for  Potamogeton perfoliatus var. lanceolatus J. W. Robbins) Manual (Gray), ed. 5 1867. (ed. 5) 488. | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton richardsonii (A. Bennett) Rydberg | 
| Determined by | Haynes, Robert Ralph | 
| Date Determined | 1979 | 
| Determination Remarks |  [current name] | 
| Annotation Text | Herbarium of the University of Alabama | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton richardsonii (A. Bennett) Rydberg | 
| Determined by | Ogden, Eugene Cecil | 
| Date Determined | 1938 | 
| Annotation Text | Revision Broad-leaved N. Am. Species of Potamogeton | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton richardsonii (A. Bennett) Rydberg | 
| Annotation Text | Gray's Man. Ed. 7 | 
| Family | Potamogetonaceae | 
| Determination |  Potamogeton perfoliatus var. lanceolatus J. W. Robbins | 
| Determination Remarks |  [label name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |