皖南叶附生苔研究——安徽苔藓植物区系研究之一

本文报道了皖南叶附生苔4科10属17种,较前记录增加了3科7属15种;11种为安徽省新记录,其中粗柱疣鳞苔(新拟名)(Cololejeunea ornata Ev.)为中国新记录;原为热带太平洋岛屿分布的狭瓣细鳞苔(Lejeunea borneensis Horik.)首次在大陆上被发现。皖南叶附生苔种类丰富,仅次于福建武夷山而在华东地区居第二位。尖叶薄鳞苔(Leptolejeunea elliptica)、尖舌扁萼苔(Radula acuminata)、棉毛疣鳞苔(Cololejeunea floccosa)和狭叶残叶苔(Leptocolea oblonga)是组成本地区叶附生苔群落的常见种。对附主植物的研究表明叶附生苔对附主的选择并不严格,光滑无毛,质地较厚的叶面似更适合叶附生苔的生长。

Investigation on the Epiphyllous liverworts from Southern Part of Anhui Prov., East China

Totally 17 species, belonging to 4 families and 10 genera, of epiphyllous liverworts from southern part of Anhui Prov., E.-Ohina are reported. Among them, 11 species are new to this province; Cololejeunea ornata Ev. is new to China and Lejeunea borneensis Horik. is reported primarily in the continent. A list of phorophytea including 58 species of vascular plant is given. Investigation on the phorophytes shows that there is no obligate relationship between epiphyllous liverworts and their hosts. As the media of liverworts, the thick, rigid and smooth leaves are more suitable for the growing of epiphyllous liverworts than those of thin, soft and/or rough ones. It is considered that the epiphyllous liverworts in east China might have had a distribution range much wider in the past time than today.