Zygnema insigne (Hassall) Kützing
| XXXV.—On the occurrence of tetraspores in Algæ G H K Thwaites (1846) Annals And Magazine of Natural History 17: 262-263 | |
| XXXVI.—Botanical notices from Spain Moritz Willkomm (1846) Annals And Magazine of Natural History 17: 263-270 |