TAXONOMY OF STAUROSIRACEAE (BACILLARIOPHYTA) FROM MUGECUO, SICHUAN PROVINCE, CHINA

5 genera 13 taxa of Staurosiraceae (Bacillariophyta) were collected from Mugecuo Scenic Area, Sichuan province, China. Among them, 2 genera of Pseudostaurosiropsis Morales and Stauroforma Flower, Jones & Round were newly recorded in China, and there are 7 newly recorded species of China: Staurosirella frigida Van de Vijver & Morales, S. martyi (Héribaud-Joseph) Morales, Pseudostaurosira cataractarum (Hustedt) Wetzel, Morales & Ector, P. pseudoconstruens (Marciniak) Williams and Round, P. trainorii Morales, Pseudostaurosiropsis connecticutensis Morales and Stauroforma exiguiformis (Lange-Bertalot) Flower Jones & Round. The detailed morphology, habitat characteristics and geographical distribution of each taxon were given. Moreover, according to new classification system, Staurosiraceae species were revised in Algarum Sinicarum Aquae Dulcis (Tomus X).