Spirulina elliptica cultivated in leeches is distributed in Sichuan, Qinghai, Hunan, Hubei, Guizhou, Yunnan, Shandong, Shanxi
Spirulina elliptica cultivated in leeches is distributed in Sichuan, Qinghai, Hunan, Hubei, Guizhou, Yunnan, Shandong, Shanxi and Hainan. Bifidobacterium ovale belongs to the genus Bifidobacterium of Phaeophyta. The shell surface is oval with slightly protruding edges on both sides, with a length of 20 ~ 100 micron and a width of 10 ~ 35 micron. The central part is large and close to a circle; There are obvious parallel angular protrusions, narrow longitudinal grooves on both sides, slightly wide middle part and obvious bending; The transverse ribs are thick and slightly radially arranged. 10 ~ 19 (mostly 13 ~ 19) is within 10 micron, and there are small spots between ribs. Growing in fresh water, salt water, spring water and farmland.