DESMIDS FROM SOUTHERN BAYS OF THE DONGHU LAKE,WUHAN,CHINA
武汉东湖南部湖汊的鼓藻类

A total of 48 algae samples were collected from southern bays of the Donghu Lake from September in 1963 to December in 1964. The desmids were very plentiful, 164 species, 75 varieties and 13 forms belonging to 20 genera were identified. Among these, two species, seven varieties and two forms are new to science, and 12 species, 25 varieties and five forms are recorded for the first time in China. The dominant species with frequent occurrence were 11 species and one variety in four seasons. The result of counting and analysing the samples collected in different seasons (six times for each) shows that the number of the taxa of Desmids in summer (June and August) was the highest, that in Autumn and winter (September, October and December) the next, and that in spring (April) is the lowest. Fourty five of 252 desmids taxa are tropical and subtropical, among which 19 are either endemic to or common in S and SE Asia. The desmid flora of Wuhan district is therefore subtropical in nature and closely related to the S and SE Asian flora.