为确定汉江水华硅藻优势种的分类地位，对该水华硅藻的形态特征进行电镜观察，结果表明该藻与小环藻属、冠盘藻属比较相似。
In order to identify the dominant species in Han-jiang diatom , the micrograph and the valve picture under electron microscope of the dominant species was investigated .
小环藻属