nostoc

/nos-tok/US // ˈnɒs tɒk //UK // (ˈnɒstɒk) //

鼻音,鼻腔,鼻涕,鼻涕虫

Definitions

n.名词 noun

1
- : any freshwater, blue-green alga of the genus Nostoc, often occurring in jellylike colonies in moist places.

The alg referred to were according to Euler of the nostoc type.
A species of Nostoc is largely consumed in China as an ingredient in soup.
Nostoc does not require sugar, since it can produce that compound from the CO2 of the air by the activity of its chlorophyll.
Modern naturalists place it in the class cryptogamia, and give it the name of Tremella nostoc.
Colonies of Nostoc are constantly found in the Anthocerotaceae and in Blasia.