四川水生丝孢菌

作者对四川省成都市及郊区的华阳、彭县、新繁、广汉、灌县以及峨眉山和青城山地区的水生丝孢菌进行了调查和研究。主要采集江、湖、河、溪、水塘、沟渠和人工湖泊等水体中的腐烂和半腐烂的植物叶片、枝果和泡沫等进行分离,根据孢子等的形态进行鉴定。初步鉴定出14属17种水生丝孢菌,除刚毛四枝孢Tetracladium setigerum外,其余16种全部是我国新记录。它们是: 1.Alatosporaa acuminata Ingold尖翼孢2.Anguillospora longissima(de Wild.)Ingold长水线孢3.Campylospora chaetocladia Ranzoni枝水曲孢4.Clavariopsis aquatica de Wildeman水生拟珊瑚孢5.Clavatospora tentacula(Umphlett)Nilsson卷须水棒孢6.Culicidospora gravida Petersen胀蚊孢7.Flagellospora curvula Ingold弯鞭孢8.Flagellospora penicillioides Ingold帚状鞭孢9.Lemonniera aquatica de Wildeman水生放射孢10. Lemonniera terrestris Tubaki 土生放射孢11. Lunulospora curvula Ingold 弯新月孢12. Tetrachaetum elegans Ingold 雅致刺孢13. Tetracladium marchalianum de Wildeman 马钱四枝孢14. Tetracladium setigerum (Grove) Ingold 刚毛四枝孢15. Tripospermum camelopardus Ingold, Dann & McDougall 多绺孢16. Tricladium angulatum Ingold 火箭孢17. Triscelophorus monosporus Ingold 棱三枝孢在作者的采集、分离中,水生丝孢菌在烂叶上比泡沫中多,清水中比污水中多,杨、柳、枫等薄而软的叶片上比厚而硬的叶片上多,后者如桉树、冬青等。Campylospora chaetocladia, Lunulospora curvula 和Tetracladium marchalianum是四川最常见的种,而Tripospermum camelopardus, Culicidospora gravida和Tricladium angulatum则少见,但后三者在其他温带地区却较普遍。

NOTES ON SOME AQUATIC HYPHOMYCETES FROM SICHUAN PROVINCE OF CHINA

The fungi reported and illustrated briefly in this paper were first encountered as spores on the leaf samples in the waters in West Sichuan and the Emei Mountain of China. Seventeen species distributing in fourteen genera of aquatic Hyphomycetes were identified and reported namely: Alatospora acuminate, Anguillospora longissima, Campylospora chaetocladia, Clavariopsis aquatica, Clavatospora tenacula, Culicidospora gravida, Flagellospora curvula, F. penicillioides, Lemonniera aquatica, L. terrestris, Lunulospora curvula, Tetrachaetum elegans, Tetracladium marchalianum, T. setigerum, Tricladium angulatum, Tripospermum camelopardus and Triscelosphorus monosporus. All of them are new records for China other than Tetracladium setigerum.