CAJ | 학술논문

在一定实地调查和分类的基础上,采用统计分析及区系地理分析法,对云南地区蕨类植物进行研究.结果表明：云南地区共有蕨类植物60科193属1530种(包括变种和变型),科、属、种分别占中国蕨类植物科总数的58．8％,属的83．9％和种的95．2％；在这60个科中含30种以上的有13个,含5个属以上的有11个,分别占该蕨类植物区系属、种数的56．5％和79．2％,特别是鳞毛蕨科、蹄盖蕨科、水龙骨科和金星蕨科,这4个科共拥有70属761种,分别占总属数、总种数的36．3％、49．7％；193属中含30种以上的有11个,分别占总属、总种数的5．7％和41．7％,最具优势的是鳞毛蕨属和耳蕨属、蹄盖蕨属、铁角蕨属、卷柏属,这5个属共有403种,占总种数的26．3％；该区系中无云南特有科,但具有4个亚洲特有科：雨蕨科、稀子蕨科、柄盖蕨科和骨碎补科；该区系以热带、亚热带性质为主,科的区系成分中热带亚热带分布的科占66．6％,热带成分的属有112个,占68．7％(除世界分布类型)；该区系是东亚地区蕨类植物区系的重要组成部分,东亚分布31属和中国特有分布6属,分别占总属数(除世界分布属外)的19．0％和3．7％；该地区蕨类植物区系与西藏、台湾具有共同的区系起源和物种分化形成的背景,属的相似性系数约为70％,种的相似性系数约为30％,均起源于热带亚热带地区；属的热带区系成分与温带区系成分所占比例分别为68．7％和27．6％,存在一定的区系过渡性；该区系科的分化强度为3．2,属的分化强度为7．9,在科、属水平上均表现出较强的区系分化特征.
재일정실지조사화분류적기출상,채용통계분석급구계지리분석법,대운남지구궐류식물진행연구.결과표명：운남지구공유궐류식물60과193속1530충(포괄변충화변형),과、속、충분별점중국궐류식물과총수적58．8％,속적83．9％화충적95．2％；재저60개과중함30충이상적유13개,함5개속이상적유11개,분별점해궐류식물구계속、충수적56．5％화79．2％,특별시린모궐과、제개궐과、수용골과화금성궐과,저4개과공옹유70속761충,분별점총속수、총충수적36．3％、49．7％；193속중함30충이상적유11개,분별점총속、총충수적5．7％화41．7％,최구우세적시린모궐속화이궐속、제개궐속、철각궐속、권백속,저5개속공유403충,점총충수적26．3％；해구계중무운남특유과,단구유4개아주특유과：우궐과、희자궐과、병개궐과화골쇄보과；해구계이열대、아열대성질위주,과적구계성분중열대아열대분포적과점66．6％,열대성분적속유112개,점68．7％(제세계분포류형)；해구계시동아지구궐류식물구계적중요조성부분,동아분포31속화중국특유분포6속,분별점총속수(제세계분포속외)적19．0％화3．7％；해지구궐류식물구계여서장、태만구유공동적구계기원화물충분화형성적배경,속적상사성계수약위70％,충적상사성계수약위30％,균기원우열대아열대지구；속적열대구계성분여온대구계성분소점비례분별위68．7％화27．6％,존재일정적구계과도성；해구계과적분화강도위3．2,속적분화강도위7．9,재과、속수평상균표현출교강적구계분화특정.
Based on the field investigation and plant classification,the floristic analysis of fern in Yunnan Province was studied.We made Flora of Yunnan (Vol.20 and Vol.21)complete,which was the principal research material,by using the list of local ferns in Mt.allaoshan Nature Reserve,Xishuangbanna,Yuengling Nature Reserve,Dulong River and so on supplementing the list of pteridophyte in Yunnan,through routine method of statistical analysis meth-od and the analysis of the floristic geography study of ferns in Yunnan,in order to find out the number of species in Yunnan ferns,the floristic composition characteristics and contact area of the surrounding area.The results were as follows:The fern flora of Yunnan consisted of 60 families,193 genera and 1 530 species (including varieties and forms),and the family,genera and species accounting for the total number of ferns in Chinese were 58.8%,83.9%and 95.2% respectively;The number of families contalning more than 30 species was 13 and the number of families contalning more than 5 genera was 11 in this 60 families,these genera and species accounting for the total number of ferns in Yunnan Province was 56.5% and 79.2%,especially the Dryopteridaceae,Athyriaceae,Polypodiaceae,the-lypteridaceae,there were 761 species of ferns belonging to 70 genera in 4 families,accounted for 36.3% and 49.7%respectively,the number of genera contalning more than 30 species was 11,accounted for 5.7% and 41.7% respective-ly,and the dominant genera were Dryopteris,Polystichum,Athyrium,Asplenium,Selaginella,the five genera had 403 species which accounted for 26.3% of the total species in this area;the peteridophyte florae did not contaln the fami-lies endemic in Yunnan Province,but had four endemic families in Asia:Peranemaceae,Monachosoraceae,Davalliace-ae,Gymnogrammitidaceae;The floristic analyses showed that the maln elements were tropical and subtropical in na-ture,the families in tropical and subtropical distributions accounted for 66.6% in the family areal type and the tropi-cal distribution type had 112 genera,which accounted for 68.7% of the total genera (excluding the Cosmopolitan);The fern flora of Yunnan was an important part of East Asia,there were 31 genera distributed in East Asia and 6 genera in China alone,respectively accounted for 19.0% and 3.7% of the total genera in addition to the cosmopolitan;The fern floras of Yunnan,Tibet and Talwan ,China shared common floristic elements,and origin,as well as the background of species differentiation,the similarity coefficient of genera was about 70% and the similarity coefficient of species was about 30%,their common originated in tropical and subtropical areas;At the genus level,tropical flo-ristic composition accounted for 68.7%,temperate floristic elements 27.6%,there was a certaln degree of floristic transition;The intensity of floristic differentiation at family level was 3.2 and at genus level was 7.9.The flora differ-entiations both at family and genus levels are strong.