Taxonomical Revision On Yunnan Rubus(Rosaceae)

Rubus is under Rubeae,Rosoideae,Rosaceae,and is a large genus of worldwide distribution.There are over 200 Rubus species in China,most of which in Yunnan Province.Although previous research has sorted out Rubus in Yunnan in a comprehensive manner,affected by the large number of species,the complexity of morphological variation and other factors,there are still a lot of scientific issues in traditional classification that are in urgent need of in-deepth and systematic revision.In this research,using classify botanical taxonomy,Rubus specimens in a large number collected in the herbarium of Yunnan University(YUKU)are sorted out.On the basis of consultation of related specimens from Yunnnan in major herbariums nationwide,targeted and extensive field investigation and supplementary collection are made.Referring to literature,specimens,field survey and other data,an all-round taxonomic revision is given to Rubus in Yunnan Province.The main research results were as follows:1.This study confirmed that there are 116 species and 17 varieties of Rubus in Yunnan Province.Compared with the Rubus part of Flora of Yunnan published in 2006,a total of 20 species have been revised in this study.It is clear that among the raspberries in Yunnan Province,there are 44 species and 6 varieties in Sect.ldaeobatua.,1 species in Sect.Lampobatus,60 species and 11 varieties in Sect.Malaehobatus,3 species in Sect.Dalibardestrum,3 species in Sect.Chamaebatus,and 5 species in Sect.Cylaetis,all of which account for 56% of Chinese total.It is the province with the richest species diversity and types of raspberries in China.In this study,a key to the classification of Yunnan's raspberries was newly compiled.Based on first-hand data,the description of species morphology has been updated and supplemented.141 plates were produced or drawn.2.Six new species were discovered and described in this study.Among them,Rubus zixishanensis H.C.Wang ? Q.P.Wang and R.ovatisepalus H.C.Wang have been officially published,R.pseudosubornatus H.C.Wang ? Q.P.Wang sp.nov.,R.weixiensis H.C.Wang ? Q.P.Wang sp.nov,R.longlingensis H.C.Wang ? Q.P.Wang sp.nov.,R.longchuanensis H.C.Wang ? Q.P.Wang sp.nov.and other four new species have yet to be further studied and officially published.3.Five new species in Yunnan were discovered,namely Rubus peltatus Maxim.,R.faberi Focke,R.hunanensis Hand.-Mazz.,R.bambusarum Focke,R.henryi var.sozostylus(Focke)TT Yu ? LT Lu;Added R.parapungens H.Hara,R.opulifolius Bertol.,R.polyadenus Cardot and other three newly recorded species information in China;Excluded R.conduplicatus Duthie ex J.H Veitch,R.hirsutus Thunb.,R.jinfoshanensis T.T.Yu ? L.T.Lu,etc.distribution records in Yunnan.4.R.taronensis C.Y.Wu ex T.T.Yu ? L.T.Lu was treated as a synonym of R.acuminatus Sm.,R.evadens Focke was treated as a synonym of R.paniculatus Sm.,R.clivicola Walker was treated as a synonym of R.potentilloides W.E.Evans,R.tinifolius C.Y.Wu ex T.T.Yu ? L.T.Lu was treated as a synonym of R.ochraceus Cardot,R.multisetosus T.T.Yu ? L.T.Lu was treated as a synonym of R.tricolor Focke;the species classification status of R.mairei H.Lév.was restored.5.The focus is on clarifying the classification and definition of species such as Rubus subornatus Focke,R.faberi Focke,R.setchuenensis Bureau ? Franch.,R.calycacanthus H.Lév.,R.pinnatisepalus Hemsl.,R.corchorifolius L.f.,Rubus parvifolius L.6.In Yunnan province,the southeastern and Hengduan Mountains in northwestern are the most abundant areas of Rubus,with species accounting for 75%.They are the distribution centers and diversification centers of this genus in Yunnan.In terms of vertical distribution,the genus has a wide range of adaptation,from 100 to more than4000 meters were found,but the most abundant in the 1500-3000 m altitude zone.