浙江省苔藓植物分布新记录

Syntrichia laevipila Brid.:A new record species of bryophytes from Zhejiang Province

运用经典分类方法检视近期所采浙江苔藓植物标本,发现并报道产自西溪国家湿地公园和温州市平阳县的藓类植物新记录1种——树生赤藓（Syntrichia laevipila Brid.）,并就其分布与生境特点进行了讨论。采纳该种仍保留在丛藓科（Pottiaceae）赤藓属（Syntrichia Brid.）而非墙藓属（Tortula Hedw.）的分类学观点。树生赤藓与浙江常见种高山赤藓[Syntrichia sinensis（C.Müll.）Ochyra]在叶形、叶细胞形状、疣的数量和形状等方面具有相似特征,但前者植物体细小,高2-3mm,叶先端具无色透明毛尖,齿片向左1-2回旋扭,可资区别。树生赤藓的发现补充了浙江苔藓植物区系的内容,亦为中国赤藓属地理分布研究积累了基础资料。

Summary Based on specimen examination adopting classical classification method,Syntrichia laevipila Brid.was found and reported for the first time in Zhejiang Province.It distributed both in Xixi Wetland National Park of Hangzhou City and Pingyang County of Wenzhou.The characteristics of distribution and habitat were discussed. In the present paper S.laevipila.was accepted as a species of the genus Syntrichia Brid.rather than the genus Tortula Hedw.of family Pottiaceae.Syntrichia laevipila Brid.was morphologically close to S.sinensis（C.Müll.）Ochyra,a widely-distributed species in Zhejiang Province.Both species were similar in their leaf shape,leaf cell shape and papillosity.However,fromS.sinensis（C.Müll.）Ochyra,S.laevipila Brid.could be especially identified by its small size（2-3mm）,colorless spindly leaf apex and 1-2circle left-handed dentiums. The discovery of the new record of S.laevipila Brid.enriched the bryophyte flora of Zhejiang Province,and also provided fundamental materials to further study geographical distribution of genus Syntrichia Brid.in China.