Tolypothrix glacialis Dickie

Caespitosa, sordide fuscescens, trichomatibus rigidis, obscure avticulatis, vaginis sublamellosis, diam. =0.0006.
Forming a brownish crust on decayed Nostoc. Edge of Glacierlake, Cape Baird, at 300 feet 81°30' N. (Dickie G. On the algae found during the Arctic Expedition // Bot. J. linn. Soc., 1880. Vol. 17. P. 6-12.)
Strato ciespitoso, sordide fuscescenti; triciiomatibus rigidis, obscure articulatis, ad 15 mu crassis; vaginis sublamellosis. (Forti A. (1907). Sylloge algarum omnium hucusque cognitarum. Vol. V. Sylloge Myxophycearum. pp. i-viii, 1-761. Patavii [Padova]: Sumptibus auctoris.)
"Unclear species." (Komárek 2013: 454).