西沙群岛海产绿藻的研究Ⅰ

关于我国广东省西沙群岛的绿藻类,已报道了26种,其中20种隶属于管枝藻目，6种隶属于管藻目。所报道的种类虽然不多,但是,有8种是新种,占已报导种类的30%,比例相当大,可见这个地区海产绿藻类是相当丰富的。本文所报导的14种,都是这个地区的新记录,其中7种是我国的新记录,包括一个新种——中华绿毛藻(Chlorodesmis sinensis sp.now.),其他我国的新记录是：锯叶蕨藻(Caulerpa brachypus Harvey),瘤枝藻(Tydemania expeditions Weber-van Bosse),卵形松藻(Codium ovale Zanardini),密岛仙掌藻(Halimeda micronesica Yamada),棒形伞藻(Acetabularia clavata Yamada),梨形伞藻(A. tsengiana Egerod)。此外,还有在我国已有报导而在西沙群岛是首次记录的绿藻：针叶蕨藻(Caulerpa sertularioides (Gmelin)Howe),杉叶蕨藻(C. tarifolia (vahl.)C.Ag.),齿形蕨藻(C. serrulata (Forssk.) J.Ag. emend Boerg.)绒毛蕨藻(C. webbiana Mont.),小钙扇藻(Udotea javensis (Mont.) A.et E.S.Gepp)环蠕藻(Neomeris annulata Dickie),小伞藻(Acetabularia m?bii Solms-Laubach)。

STUDIES ON SOME MARINE GREEN ALGAE FROM THE XISHA ISLANDS, GUANGDONG PROVINCE, CHINA. I

Our investigations on the marine flora of the Xisha Islands(Guangdong Province,China) have shown the richness of the chlorophyeeaceous flora in these South China Sea Coral Islands.So far, 26 species have already been reported (Tseng and Chang,1962;Fan,1963;Tseng and Dong,1975 and Chang,Xia and Xia, 1975),among which 8 species were newly described species, showing a rather high percentage of endemic elements.In the present paper, fourteen more species of marine green algae are added to the Xisha flora. Seven species are new additions to the marine flora of China, including one new species,namely, Chlorodesmis sinensis. The other six species are Cauperpa brachypus Harv, Tydemania expeditionis Weber-van Bosse. Codium ovale Zan., Halimeda micronesiea Yam, Acetabularia clavata Yam. and A. tsengiana Egerod.These species recorded for the Chinese marine flora for the first time are fully deseribed on the basis of our own materials, to facilitate better understanding of these seaweeds.