| Name | Gelidium crinale f. luxurians Collins |
| Authorship | Collins |
| Rank | Forma |
| Placed in | Gelidium crinale (Hare ex Turner) Gaillon |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gelidium crinale f. luxurians Collins |
| Identification made in | [no date] (1) |