| Name | Chroococcus chalybeus (Kützing) Rabenhorst |
| Authorship | (Kützing) Rabenhorst |
| Rank | Species |
| Placed in | Chroococcus Nägeli |
| Citation | 1863 Krypt.-Fl. Sachsen 1: 69 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Chroococcus chalybeus (Kützing) Rabenhorst |
| Identification made in | [no date] (1) |