(1) Nostoc is from Zhangjiakou Bashang and luxury products in Inner Mongolia grassland.

(2) Forming hormogonium is a main reproductive way of Nostoc flagelliforme by thallus.

(3) The distribution of Nostoc commune Vanch is widespread in ofgrowth is possible season of a year.

(4) Ambientwas conducted to bioindicate air pollution around Lanzhou city with Nostoc commune.

(5) The growth period, nitrogen fixation , growth condition and other growth characteristics of Nostoc. sp were studied.

(6) Any of the cyanobacteria that make up the genus Nostoc.

(7) Biological features and nutrition value and recent researches progress of Nostoc sphaeroidesnutrition structure and health effect.