西沙群岛的水云科藻类

Studies of the Ectocarpaceae of Xisha Islands,China

西沙群岛的水云科Ecfocarpaceae藻类,现已知道6种,分属于4属。(1)安的巴克藻^(*△)Bachelonia antillarum、(2)短节水云Ectocarpus breviarticulatus、(3)不规则费氏藻*Feldmannia irregularis、(4)印度费氏藻*F.indica、(5)拉尔费氏藻^(*△)F.rallsiae、(6)柱状褐茸藻Gittorda mitchellae,附(*)印者为本地区新记录,附(△)印者为我国首次报道。拉尔费氏藻Feldmania rallsiae是新组合。本文对新记录种作了描述,对在国内有过报道的种只做简要介绍。

ln the present paper 6 species are reported,among them 1 species belongs fo the genus Bachelotia,1 species belongs to the genus Ectocarpus,3 speciesbelong to the genus Feldmannia,1 species belongs to the genus Giffordia.These species are as follow:1.Bachelotia antillarum(Grunow)Gerloff2.Ectocarpus breviarticulatus J.Ag. 3.Feldmannia irrgularis(Kuetzing)Hamel4.F.indica(Sonder)Womersley & Bailey5.F.rallsiae(Vickers)comb.nov. 6.Giffordia mitchellae(Harvey)Hamel 4 species(with asterisk)are records for first time from Xisha Islands.The Feldmannia rallsiae is a new combination.The specimens studied are all deposited in the Herbarium of Institute of Oceonology,Academia Sinica.