| Name | Scytonema hyalinum N. L. Gardner |
| Authorship | N. L. Gardner |
| Rank | Species |
| Placed in | Scytonema C. Agardh ex Bornet & Flahault |
| Citation | 1927 Univ. Calif. Publ. Bot. 14: 7 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Scytonema hyalinum N. L. Gardner |
| Identification made in | [no date] (1), 1938 (1) |