| Name | Cystoclonium gracilarioides Harvey |
| Authorship | Harvey |
| Rank | Species |
| Placed in | Cystoclonium Kützing |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cystoclonium gracilarioides Harvey |
| Identification made in | [no date] (2) |
| Name | Cystoclonium gracilarioides Harvey |
| Authorship | Harvey |
| Rank | Species |
| Placed in | Cystoclonium Kützing |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cystoclonium gracilarioides Harvey |
| Identification made in | [no date] (2) |