| Classification | Isoetaceae: Isoetes | 
| Harvard University Herbaria Barcode(s) | 00872885 | 
| Collector | W. T. Kittredge | 
| Collector number | 410 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: North Reading | 
| Locality | Northeast end of Martins Pond | 
| Date Collected | 1975-07-18 | 
| Habitat | Growing in 3-6' of water, sandy shorelin | 
| Container | Plants of Massachusetts | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0d6da435-0b6e-4684-a483-4a685f6230d1 | 
| Harvard University Herbaria Barcode | 00872885 | 
| Herbarium | NEBC | 
| Family | Isoetaceae | 
| Determination | Isoetes echinospora Durieu | 
| Determined by | Kittredge, Walter Tobey | 
| Date Determined | 2017 | 
| Determination Remarks | [filed under] [current name] | 
| Family | Isoetaceae | 
| Determination | Isoetes muricata var. braunii (Durieu) C. F. Reed | 
| Determination Remarks | [label name] | 
| Annotation Text | det. with R. James Hickey | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |