江西省维管植物区系新资料

New data of vascular flora in Jiangxi Province,China

【目的】对我国亚热带东部森林生态系统保存较完整的典型地区九连山的植物多样性进行调查,补充该区域维管植物区系新资料。【方法】以南岭山地东段九连山为研究区域,通过植物摄影、标本采集、参考有关文献和资料,对该区植物区系进行分析,并讨论了它们的地理区系和濒危状况。【结果】与以往记录对照,新增10个江西省维管植物新记录种(含2个变种),即无盖耳蕨(Polystichum gymnocarpium Ching ex W. M. Chu&Z. R. He)、倒卵伏石蕨[Lemmaphyllum microphyllum var.obovatum(Harr.) C. Chr.]、广西长筒蕨[Abrodictyum obscurum var.siamense(Christ) K. Iwats.]、剑叶石斛(Dendrobium spatellaRchb.f.)、圆叶匙唇兰[Schoenorchis tixieri(Guillaumin) Seidenf.]、红秆凤尾蕨(Pteris amoena Blume)、高鳞毛蕨[Dryopteris simasakii(H. It8) Kurata]、美丽毛蕨[Cyclosorus molliusculus(Wall. ex Kuhn) Ching]、粉叶蕨[Pityrogramma calomelanos(L.) Link]、弯花叉柱花(Staurogyne chapaensis Benoist)。新增4个江西省维管植物新记录属,即长片蕨属(Abrodictyum C. Presl)、匙唇兰属(Schoenorchis Blume)、叉柱花属(Staurogyne Wall.)和粉叶蕨属(Pityrogramma Link)。【结论】4个新记录属在江西省的被发现对研究该类植物的起源与扩散机制有重要的参考意义;广西长筒蕨和剑叶石斛分别被《中国生物多样性红色名录—高等植物卷》收录为近危种(NT)和易危种(VU),剑叶石斛还被列为国家二级重点保护野生植物,建议当地管理机构加强对这些珍稀濒危植物的保护;这些新记录在九连山地区的被发现补充了其在中国的地理区系成分分布,进一步丰富了江西省的维管植物多样性。

【Objective】In order to investigate the plant diversity and to supplement the new data of vascular plants flora in Jiulian Mountain,a typical region of the subtropical forest ecosystem in eastern China.【Method】Taking Jiulian Mountain in the eastern section of Nanling Mountain as the research area,the plant flora was analyzed through plant photography,specimen collections,references to relevant literature and data,and their geographical flora and endangered status were discussed.【Result】Compared with previous records,ten newly recorded vascular plant species(including two varieties)to Jiangxi Province were reported,viz.Polystichum gymnocarpium Ching ex W.M.Chu&Z.R.He,Lemmaphyllum microphyllum var.obovatum(Harr.)C.Chr.,Abrodictyum obscurum var.siamense(Christ)K.Iwats.,Dendrobium spatella Rchb.f.,Schoenorchis tixieri(Guillaumin)Seidenf.,Pteris amoena Blume,Dryopteris simasakii(H.Itô)Kurata,Cyclosorus molliusculus(Wall.ex Kuhn)Ching,Pityrogramma calomelanos(L.)Link,Staurogyne chapaensis Benoist;four newly recorded vascular plant genera to Jiangxi Province were reported,viz.Abrodictyum C.Presl,Schoenorchis Blume,Staurogyne Wall.and Pityrogramma Link.【Conclusion】These four newly recorded genera in Jiangxi Province had important reference significance for the study of the origin and dispersal mechanism of these genera.Abrodictyum obscurum var.siamense(Christ)K.Iwats.and Dendrobium spatella Rcho.f.were listed as near threatened species(NT)and vulnerable species(VU)respectively in“China Red List of Biodiversity⁃Higher Plants Volume”.Dendrobium spatella Rcho.f.was also listed as national second level key protected wild plants.It is suggested that local management should strengthen the protection of these rare and endangered plants.These new records further complements its geographical distribution in China,and further enriches the vascular plant diversity in Jiangxi Province.