新疆舟形藻属(硅藻门)中国新记录

报道了采自新疆的舟形藻属（硅藻门）中国新记录7个分类单位，如下所示：辐头舟形藻(Navicula capitatoradiata Germain)、辐指舟形藻(N. digitoradiata(Gregory) Ralfs)、瑞卡德提舟形藻(N. reichardtiana Lange-Bertalot)、针状舟形藻(N. spicula (Hickie) Cleve)、近小胎座舟形藻(N. subplacentula Hustedt)、琐细舟形藻(N. trivialis Lange Bertalot)和上凸舟形藻(N. upsaliensis(Grunow) Peragallo)。并对其分类学特征以及采集地生境进行了详细地描述。

Newly Recorded Species of Navicula(Bacillariophyta) in China, from Xinjiang

Xinjiang Uygur Autonomous Region is the largest in area among all the province-level administrative regions of China. It is situated in the hinterland of Eurasian continent and is under the control of a typical extratropical belt continental climate. Algae are very abundant in this region, but the research of algae flora is relatively weak. Algae samples were collected from Xinjiang during the period of July to August, 2001. Samples were preserved with 4% formalin and kept in the Herbarium of the Biology Department of Shanghai Normal University. Microscope slides were prepared by acid digestion method and mounted in Canada balsam or Hyrax gum. Light microscope observations were conducted using a Nikon E-800 DIC microscope at magnification x 1000 and a Nikon digital cameral DXM1200. In the identification, seven species of Navicula (Bacillariophyta) are new records of China, and they are Navicula capitatoradiata Germain, N. digitoradiata (Gregory) Ralfs, N. reichardtiana Lange-Bertalot, N. spicula (Hickie) Cleve, N. subplacentula Hustedt, N. trivialis Lange Bertalot and N. upsaliensis (Grunow) Peragallo. Their taxonomic characters and habitats were described.