| Classification | Plantaginaceae: Callitriche |
| Harvard University Herbaria Barcode(s) | 00048919 |
| Type Status | Isolectotype |
| Collector | H. L. Mason |
| Collector number | 4445 |
| Country | United States of America |
| State | California |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: California: San Joaquin County |
| Locality | four miles north of Clementes |
| Date Collected | 1928-05-03 |
| Habitat | Vernal pools |
| Container | Plants of California |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1c086d67-5a8d-477c-8ee2-cf01f7e5504e |
| Harvard University Herbaria Barcode | 00048919 |
| Herbarium | GH |
| Previous ownership | [Ex] Herbarium of the University of California |
| Family | Plantaginaceae |
| Type Status | Isolectotype |
| Isolectotype of | Callitriche autumnalis var. bicarpellaris Fenley ex Jepson |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2016 |
| Determination Remarks | [filed under] |
| Annotation Text | Lectotype: (UC) |
| Taxon Reference | (for Callitriche autumnalis var. bicarpellaris Fenley ex Jepson) Fl. Calif. [Jepson] 1936. 2(4): 436. |
| Family | Plantaginaceae |
| Determination | Callitriche fassettii Schotsman |
| Determined by | Lansdown, Richard V. |
| Date Determined | 2007-12-17 |
| Determination Remarks | [current name] |
| Family | Plantaginaceae |
| Determination | Callitriche hermaphroditica var. bicarpellaris (Fenley ex Jepson) H. Mason |
| Determined by | Philbrick, Charles Thomas |
| Date Determined | 1993 |
| Annotation Text | Isotype |
| Family | Plantaginaceae |
| Determination | Callitriche hermaphroditica Linnaeus |
| Determined by | Philbrick, Charles Thomas |
| Date Determined | 1991-01-** |
| Family | Plantaginaceae |
| Determination | Callitriche hermaphroditica Linnaeus |
| Determined by | Fassett, Norman Carter |
| Date Determined | 1949 |
| Family | Plantaginaceae |
| Determination | Callitriche autumnalis var. bicarpellaris Fenley ex Jepson |
| Determined by | Fassett, Norman Carter |
| Date Determined | 1949 |
| Annotation Text | Isotype |
| Family | Plantaginaceae |
| Determination | Callitriche autumnalis var. bicarpellaris Fenley ex Jepson |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
