nostoc

[ nos-tok ]

/ ˈnɒs tɒk /

any freshwater, blue-green alga of the genus Nostoc, often occurring in jellylike colonies in moist places.

Origin of nostoc

From New Latin, dating back to 1640–50, coined by Paracelsus

Colonies of Nostoc are constantly found in the Anthocerotaceae and in Blasia.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 |Various
Modern naturalists place it in the class cryptogamia, and give it the name of Tremella nostoc.

The Curiosities of Heraldry |Mark Antony Lower
They are gelatinous, and have something of the appearance of Nostoc, in aspect as well as in minute structure.

Sea-Weeds, Shells and Fossils |Peter Gray
The alg referred to were according to Euler of the nostoc type.

The Organism as a Whole |Jacques Loeb

The ventral surface bears flat scales in addition to the concave scales which, as mentioned above, are inhabited by Nostoc.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 |Various

nostoc

/ (ˈnɒstɒk) /

any cyanobacterium of the genus Nostoc, occurring in moist places as rounded colonies consisting of coiled filaments in a gelatinous substance

C17: New Latin, coined by Paracelsus