| Name | Gelidium latifolium var. hystrix (J. Agardh) Hauck |
| Authorship | (J. Agardh) Hauck |
| Rank | Variety |
| Placed in | Gelidium latifolium Bornet ex Hauck |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gelidium latifolium var. hystrix (J. Agardh) Hauck |
| Identification made in | [no date] (1) |