铁线莲属(Clematis L.)是一个在分类上较困难的类群,种类多,形态变化大。全球铁线莲属植物有350余种,中国有150余种。2006年7~8月我们对河南四大山区的铁线莲属植物种类进行了调查、采集和鉴定,标本存放于河南农业大学标本馆(HEAC),此外我们还认真观察了中国科学院植物研究所标本馆(PE)等国内各大标本馆的铁线莲属植物标本。结果表明河南铁线莲属植物24种和11变种,按照王文采等的铁线莲属新分类系统分别隶属于4亚属、7组、11亚组、15系,其中首次报道了半钟铁线莲(C.sibiricavar.ochotensis)和长冬草(C.hexapetalavar.tchefouensis)为河南铁线莲属植物新记录,首次报道了Clematis honanensisS.Y.Wang&C.L.Chang’作为Clematis pseudootophoraM.Y.Fang in W.T.Wang的新异名。增补《河南植物志》(1981)中未记录的有5种5变种:女萎(C.apiifoliaDC.)、毛萼铁线莲(C.hancockianaMaxim.)、大花威灵仙(C.courtoisiiHand.-Mazz.)、芹叶铁线莲(C.aethusifoliaTurcz.)、巴山铁线莲(Clematis pashanensis(M.C.Chang)W.T.Wang)、扬子铁线莲(C.puberulaHook.f.et Thoms.var.ganpiniana(Levl.et Vant.)W.T.Wang)、狭裂太行铁线莲(C.kirilowiiMaxim.var.chanetii(Levl.)Hand.-Mazz.)、大花绣球藤(C.montanaBuch.-Ham.ex DC.var.grandifloraHook.)、毛叶威灵仙(C.chinensisOsbeck.var.vestita(Rhed.&Wils.)W.T.Wang)、狭卷萼铁线莲(Clematis tubulosaTurcz.var.ichangensis(Rehd.&Wils.)W.T.Wang)。订正了《河南植物志》(1981)中6个分类群的学名:将C.uncinataChamp.var.biternataW.T.Wang作为C.uncinataChamp.的异名,C.brevicaudataDC.var.filipesRhed.作为C.puberulaHook.f.et Thoms var.tenuisepala(Maxim.)W.T.Wang的异名,C.brevicaudataDC.var.tenuisepalaMaxim.作为C.puberulaHook.f.et Thoms.var.tenuisepala(Maxim.)W.T.Wang的异名,C.argentilucida(Levl.et Vant.)W.T.Wang作为C.grandidentata(Rehd.et Wils.)W.T.Wang的异名,C.obtusiden
Examination of some 365 historical herbarium specimens preserved in a number of insti- tutions in Henan Province and our recent collections made from Henan Province, the result shows that there are 24 species and 11 varieties of Clematis in the province, they are classified into 4 subgenera, 7 sections, 11 subsections and 15 series according to the new classification of Wang Wen-Tsai. Of them, Clematis ochotensis and C. hexapetala var. tchefouensis are first reported in the flora of Henan Province in the paper. C. honanensis S. Y. Wang & C. L. Chang was first reported to be treated as a new synonyms of C. pseudootophora M. Y. Fang in W. T. Wang. There are 5 species and 5 vaieities are supplements to the Flora of Henan (1981). They are C. apiifolia DC., C. hancockiana Maxim, C. courtoisii Hand. - Mazz. , C. aethusifolia Turez. , Clematis pashanensis ( M. C. Chang) W. T. Wang C. puberula Hook. f. et Thoms. var. ganpiniana ( Levi. et Vant. ) W. T. Wang, C. kirilowii Maxim. var. chanetii ( Levl. ) Hand. - Mazz. , C. montana Buch. - Ham. ex DC. var. grandiflora Hook. and C. chinensis Osbeck. var. vestita ( Rhed. & Wils. ) W. T. Wang and Clem- atis tubulosa Turcz. var. ichangensis (Rehd. & Wils. )W. T. Wang. The names of 2 species and 4 va- rieties recorded in the Flora of Henan(1981)have been treated as synonyms. Those synonym are as follows: C. uncinata Champ. var. biternata W. T. Wang, C. brevicaudata DC. var.filipes Rhed. , C. brevicaudata DC. var. tenuisepala Maxim, C. argentilucida ( Levi. et Vant. ) W. T. Wang, C. obtusidentata ( Rhed. et Wils. ) H. Eichler, C. terniflora DC. vat. latisepala M. C. Chang. Their correct names are as follows : C. uncinata Champ. , C. puberula Hook. f. et Thorns. var. tenuisepala ( Maxim. ) W. T. Wang, C. puberula Hook. f. et Thoms. var. tenuisepala ( Maxim. ) W. T. Wang, C. grandidentata ( Rehd. et Wils. ) W. T. Wang, C. apiifoLia DC. var. argentilucida ( Levi. et Vant. ) W. T. Wang, Clematis pashanensis var. latisepala