Abstract: 1. Petalonema fluminalis Zhao sp. nov. (Fig. 1) Thallus inter Rivularia sparsis, atropurpureo, filamentis irregulariter curvatis, 40-80μm latis, 3-9 mm longis; vaginis crassis, luteus vel fuscescenti, vaginae filamentosae crassitudine usque ad 11-29μm, epilamella infundibuliformis, interlamella lamellose, vaginae singulae cellulosae crassitudine usque ad 4-11μm non lamellosa, trichomatibus partim contortis; cellulis orculiformis, 6-14μm latis, 4-7μm longis; heterocystis major quam cellulis vegetativis napiformis, depresse globosis 14-23μm latis, 5-10μm longis. Zhejiang: wuyanling, in fluminibus alt. 1525 m. 1Ⅳ1985. Zhao Xiongfei. Typus: ZW 50421. 2. Oscillatoria rbaphis Zhao sp. nov. (Fig. 2) Filamentis inter Diatoms sparsis, castaneo, trichomatibus apicem versus gradatim attenuatis, 200-400μm longis, cellulis cylindricis, 3.5-4.0μm latis, 4.5-6μm longis, ad genicula leviter constrictis, apicalibus 2-2.5μm latis, cellulis in medio truchomatis doliiformibus, 3-3-5μm latis, 2-3μm longis, cellula apicali obtusa, basin verrucosis in trichomatis apicali attenuatis, contentu aerugeneo, granuloso et vacuolis gassosis instructis. Zhejiang: wuyanling in rivulis, alt. 680m. 1Ⅳ1985 Zhao Xiongfei, Typus: ZW850432.