中国东南部复苏卷柏一新种:东方卷柏--基于形态学和分子生物学证据  

Selaginella orientali-chinensis,a new resurrection spikemoss species fromsoutheastern China based on morphological andmolecular evidences

作　　者：王浩威 戴晶敏 陈再雄 凡强[1] 廖文波[1] WANG Haowei;DAI Jingmin;CHEN Zaixiong;FAN Qiang;LIAO Wenbo(State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Plant Resources,School of Life Sciences,Sun Yat-sen University,Guangzhou 510275,China;Administrative Commission of Danxiashan National Park,Shaoguan 512300,China)

机构地区：[1]有害生物控制与资源利用国家重点实验室/广东省植物资源重点实验室,中山大学生命科学学院,广东广州510275 [2]广东省韶关市丹霞山管理委员会,广东韶关512300

出　　处：《中山大学学报（自然科学版）（中英文）》2022年第2期57-64,共8页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家公园建设专项(2021GJGY034);广州市科技计划项目(201903010076);丹霞山生物多样性与生态环境研究和监测项目(2016-0293)。

摘　　要：卷柏和垫状卷柏是两种近缘的莲座状复苏卷柏,两者在亚洲皆有广阔的分布区域。本研究描述并修订了东方卷柏这一新种;该种是卷柏和垫状卷柏的近缘种,此前常被错误鉴定为卷柏。东方卷柏与卷柏和垫状卷柏最大的形态差异在于东方卷柏的主茎为二叉分枝,而卷柏和垫状卷柏的主茎为羽状分支。形态学和分子系统发育数据分析强烈支持卷柏、垫状卷柏和东方卷柏各自独立的物种地位。通过查阅以往被错误鉴定的东方卷柏标本,可知该种广泛地分布于华东和华南地区。此外,野外调查表明该新种主要生长于丹霞地貌区,有时会和卷柏混生。本文对东方卷柏新种的形态、系统发育和地理分布进行了描述,这将有助于未来的植物学和生态学野外工作者开展针对性的相关研究。东方卷柏学名的种加词orientali-chinensis是我国蕨类分类学家秦仁昌及张朝芳1982年在标本台纸上对该种作出的鉴定,使用的是裸名,没有描述,本文在此正式合格发表继续采用了该名称,以资纪念。Selaginella tamariscina(Beauv.)Spring and S.pulvinata(Hook.et Grev.)Maxim.are two closely related rosette forming and resurrection spikemoss species widespread in Asia.In this paper,Selaginella orientali-chinensis Ching et C.F.Zhang ex H.W.Wang et W.B.Liao was described and illustrated.This species was closely related to S.tamariscina and S.pulvinata and previ‐ously misidentified as S.tamariscina.By the gross morphological and molecular evidences,we found that this species is easily distinguished from S.tamariscina and S.pulvinata by the absolutely dichoto‐mously branched main stems.Our field works confirmed that this species is widely distributed in south‐eastern China and mainly inhabits Danxia landforms areas.In some cases,this species shares the same habitats with S.tamariscina.Illustrating the morphological,phylogenetic and distribution characters of this new species would provide new data for the taxonomic studies on the genus Selaginella in the future.

关 键 词：卷柏属 丹霞地貌 形态学 系统发育 地理分布 

分 类 号：Q949.36[生物学—植物学]