中国西北部毛莨科新资料

本文发表了中国西北部毛莨科新资料, 即巴里坤毛莨Ranunculus balikunensis J.G.Liou, sp.nov.;髯毛蒙古白头翁Pulsatilla ambigua Turcz.ex pritz.var.barbata J.G.Liou, var.nov.。     

国产毛莨属11种及其4个近缘属5种植物的细胞学研究

研究了国产毛莨属RanunculusL.11种及其4个远缘属－美花草属CollianthemunC.A.Meyer,侧金盏花属AdonisL．、碱毛莨属Halerpestes E.Greene,水毛莨属BatrachiumS.F.Gray5种植物的洒色体数目和形态。发现美花草C.pinpinelloides(D.Don)Hook.f.et THoms.,川滇毛莨R.potaninii Kom.,深齿毛莨R.popovii var.stracheyanus(Maxim.)W.T.Wang,高原毛莨R.tanguticus(Maxim.)Ovcx., 石龙芮R.sceleratusL.,西南毛莨R.ficariifolius Levl.et Vant.、褐鞘毛莨R.sinovaginatus W.T.Wang、三裂碱毛莨H.tricuspis(Maxim.)Hand.-Mazz.和碱毛莨H.sarmentosa（Adams)Kom.9种植物为染色体基数x=8的四倍体（2n=4x=32）;短注侧金盏花A.brevistyla Franch．、丝叶毛莨R.nematolobus Hand.-Mass.、棱喙毛莨3R.trigonus Hand.-Mazz.、 茴茴蒜R.chinensis Bunge4种植物为染色体基数x=8的二倍体(2n=2x=16);毛莨R.japonicus Thunb.、黄毛莨R.laetus Wall.2种植物为染色体基数x=7的二倍体（2n=2x=14);水毛莨B.bungei(Steud.)L.Liou有二倍体（2n=2x=16)和三倍体（2n=3x=24)两种细胞型。根据染体资料,讨论了上述5属的属间关系和毛莨属中一些种的种间关系。     

东北水毛莨属一新种

本文发表了产于东北的水毛莨属一新种, 即镜泊毛莨Batrachium jingponse G.Y.Chang C.Wang.et X.J.Liu.     

中国毛莨科植物小志（十八）

在对有关形态特征进行分析之后．作者发现具三浅裂或三深裂基生叶,和较薄、脱落萼片的脱萼鸦跖花是鸦跖花属的原始种,而具五角形,三深裂基生叶的变叶三裂碱毛莨和裂叶碱毛莨是碱毛莨属的原始分类群．写出新修订的我国碱毛莨属属下分类群检索表;作者认为聚合果的形状是碱毛莨属的重要特征,并用来将此属的种分为二群,描述了碱毛莨属２新组,２新变种,水毛莨属１新变种．做出碱毛莨属２新组合报导了水毛莨属二种的新分布。     

中国毛茛科植物小志（十八）

在对有关形态特征进行分析之后．作者发现具三浅裂或三深裂基生叶,和较薄、脱落萼片的脱萼鸦跖花是鸦跖花属的原始种,而具五角形,三深裂基生叶的变叶三裂碱毛莨和裂叶碱毛莨是碱毛莨属的原始分类群．写出新修订的我国碱毛莨属属下分类群检索表;作者认为聚合果的形状是碱毛莨属的重要特征,并用来将此属的种分为二群,描述了碱毛莨属２新组,２新变种,水毛莨属１新变种．做出碱毛莨属２新组合报导了水毛莨属二种的新分布。     

报春花属藏报春组、毛莨叶报春组的界定和系统发育关系：核糖体DNAITS序列证据

报春花属（PrimulaL.)藏报春组（sect.Auganthus Pax ex Balf.f.)和毛莨叶报春组（sect.Ranunculoides Chen et C.M.Hu)的界定一直是没有解决的问题,应用核糖体DNAITS序列数据探讨其系统发育关系。取样包括藏报春组和毛莨叶报春组的全部5个种以及其他一些相关组的代表种,ITS系统树表明,陕西羽叶报春（P.filchnerae Knuth)应与藏报春（P.sinensis Sabine ex Lindl.)和野藏报春耕（P.rupestris Balf.f.et Farrer)一起置于藏报春组;毛莨叶报春组只含两种;毛莨叶报春（P.cicutariifoliaPax)和安徽羽叶报春（P.merrilliana Schltr.)。这两组并不具密切亲缘关系,它们在报春花属中与其他组的关系还需进一步研究。研究也表明ITS序列可以为报春花属的系统发育重建提供大量可靠资料。     

内蒙古毛莨属的分类研究

本文记载了内蒙古境内毛莨属植物23种、1变,种比1978年出版的"内蒙古植物志"第二卷增加了13种、1变种,其中发现新种2个——R.alaschanicus Y.Z.Zhao和R.int-ramongolicus Y.Z.Zhao,新种组合1个——R.yinshanensis(Y.Z.Zhao)Y.Z.Zhao,内蒙古分布新记录4个——R.popovii Ovcz.、R.brotherusii Freyn、R.tanguticus(Maxim.)Ovcz、R.submarginatus Ovcz.。     

迁地保护中普通野生稻和长喙毛莨泽泻种群动态及评价

通过对江西东乡含濒危植物普通野生稻和长喙毛莨泽泻的群落在余江县实施重建，研究并评价了迁地保护后的濒危植物种群动态。结果表明，普通野生稻种群呈迅速增长的趋势，分布面积迅速扩大，有性繁殖正常，实生苗补充在种群增长中起重要作用；     

毛花瑞香一新变种

思茅毛花瑞香 新变种 Eriosolena composita (L.f.)Van Tieghem var.szemaoensis Qian,var.nov. A typo differt foliis ellipticis 6—16cm longis,3—5cm latis,calyciumtubis 1.6—2.4cm longis.     

中国繁缕(Stellaria chinensis Regel)一新变种

发表了中国繁缕一新变种,即缘毛中国繁缕Stellaria chinensis Regel var. ciliata C. S. Zhu et H. M. Li.     

三种毛茛的核型研究

对３种（含１变种）毛莨属植物进行了核型研究,其染色体数目及核型资料为首次报道。三叶毛莨（ＲａｎｕｎｃｕｌｕｓｊａｐｏｎｉｃｕｓＴｈｕｎｂ．ｖａｒ．ｔｅｒｎａｔｉｆｏｌｉｕｓＬ．Ｌｉａｏ．）有两种核型。即基本型２ｎ＝２ｘ＝１４＝６ｍ＋４ｓｍ＋４ｓｔ（２ＳＡＴ）和杂合型２ｎ＝２ｘ＝１４＝６ｍ＋４ｓｍ＋４ｓｔ（１ＳＡＴ）,前者核型的特征是其随体较大,而后者核型变异发生在第２对和第３对同源染色体异形上,并     

禺毛茛复合体及其近缘种过氧化物酶同工酶研究

对国产禺毛茛（RanunculuscantoniensisDC．）复合体及其近缘种8个种的15个居群52个个体的根进行了过氧化物酶同工酶研究,结果表明：①居群内过氧化物酶谱略有变异。同工酶酶谱或多或少能显示居群特征。供试的8个种中没有任何2个种的酶谱完全一致,这说明在种级水平酶谱呈现出高度的分化现象。②根据染色体、孢粉和过氧化酶同工酶的资料推测,除R．silerifolius（2x）外,R．cantoniensis（4x）还有1个亲本。该亲本应具有“短m-型”染色体组,散沟和波状覆盖层的花粉,在其根的过氧化物酶酶谱中至少含A1、A2、C4和C64条酶带。③来自形态、染色体孢粉及同工酶的证据均证实R．vaginatus（5x）可能起源于（R,diffusus（4x）×R．sieboldii（6x）的杂交后代。     

中国云南毛茛科毛茛属一新种——哀牢山毛茛

描述了中国云南毛莨科Ranunculaceae一新种--哀牢山毛莨Ranunculus ailaoshanicus W.T.wang。此种在体态上与圆裂毛莨R．dongrergensis Hand．-Mazz．极为相似,但以茎较低矮,无叶,花较小,花瓣较小,长圆状椭圆形,脉不明显而相区别。     

禺毛茛多倍体复合体及其近缘种核型研究

本文报道了禺毛茛Ranunculus cantoniensis DC．多倍体复合体及近缘种中6种植物的核型。棱喙毛茛Ranunculus trigonus Hand-Mazz．有两种核型(首次报道)：矮株型2n＝2x＝16＝4m+6sm+6st(2SAT);高株型2n＝2x=16=4m十2sm十lOst(2SAT)。茴茴蒜Ranunculus chinensis Bunge．2n=2x=16=6m+2sm+8st。卷喙毛茛Ranunculus silerifolius lévl．2n＝2x＝16＝6m+2sm+6st+2t。禺毛茛2n=4x＝32＝4m(a)+2m(b)+2sm(b)十4t(SAT)(c)十4st(d)+2m(e)+2sm(e)十2sm(f)+2st(f)+4st(g) +2st(h)十2m(h)。褐鞘毛茛Ranunculus vaginatus Hand．-Mazz．2n＝5x＝40=3m(a)十2sm(a)+2st(b)+3sm(b)十2t(c)+3t(SAT)(c)+5st(d)+5m(e)+5sm(f)+5st(g)+5m(h),(首次报道)．扬子毛茛 Ranunculus sieboldii Miq.2n=6x=48＝6m(a)十2st(b)十4sm(b)+2st(SAT)(c)十4t(SAT)(c)+6st(d)十6m(e)十6sm(f)+6st(g)+6m(h)。禺毛茛(4x)由2个类似本文中的卷喙毛茛或茴茴蒜的染色体组和两个“短m-型”染色体组组成。褐鞘毛茛(5x)和扬子毛茛(6x,8x)则由不同的“短m-型”染色体组组成。复合体成员及近缘种可能是通过“短m-型”染色体组产生关系,构成一个柱架式多倍体复合体。根据染色体及形态特征,建议恢复卷喙毛茛的种级地位。     

扬子毛茛和石龙芮的核型研究

报道了浙江省常见的２种毛茛属植物－扬子毛茛和石龙芮的染色体资料,扬子毛茛体细胞染色体数目２ｎ＝３２,核型组成;Ｋ（２ｎ）＝４ｘ＝３２＝１６ｍ＋８ｓｍ＋８ｓｔ。石龙芮体细胞染色体数目２ｎ＝３２,核型组成;Ｋ（２ｎ）＝４ｘ＝３２＝８ｍ＋２４ｓｍ。     

国产毛茛属三种植物的核型研究

对国产三种毛茛属 (Ranunclus)植物进行了核型研究 ,其中昆明毛茛 (RanunculuskunmingensisW .T .Wang)染色体数目 2n=1 4及核型 2n =1 4 =6m +4sm +4st为首次报道 ;匍枝毛茛 (R .repenceL .)核型公式为 2n =4x =3 2 =8m +1 2sm +1 0st+2t,它是由两个不同的染色体组组成 ;刺果毛茛 (R .muricatusL .)核型公式为 2n=8x=64=1 0m +2 2sm +2 8st+4t,它也是由两个不同的染色体组组成     

A New Species of Ranunculus L. from Xinjiang

A new species of the genus Ranunculus L., R. hamiensis J . G. Liu, isdescribed from Xinjiang.     

Reflectance Measurements of Glossy Petals of Ranunculus lingua (Ranunculaceae) and of Non-Glossy Petals of Heliopsis helianthoides (Asteraceae)

Abstract: A spectrophotometric comparison of the reflectance of glossy petals of Ranunculus lingua (Ranunculaceae) and non-glossy petals of Heliopsis helianthoides (Asteraceae) was made in relation to the angle of incidence of the incoming light. Additionally, the reflectance of petals of R. flammula, R. acris and R. repens (Ranunculaceae) was measured for comparative purposes. In the examined Ranunculus species, gloss is present around mirror geometry over the whole spectral range measured, including the UV region where it accentuates the UV peak, and even at the basal UV-absorbing area of the petals. According to a colour hexagon evaluation of the reflectance data, these gloss phenomena diminish the colour contrast of the petal against the background. Nevertheless, due to their brightness, they may serve as an attractant or predictor for pollinators and other visiting insects, possibly acting as a beacon while approaching the flower. The position of the reflectance maximum in the UV around 340 nm is in accordance with the sensitivity maximum of the UV photoreceptor of potential pollinators like Apidae. The mean reflectance values of the four examined Ranunculus species do not show any clear correlation with their anatomical make-up     

Ecological factors influencing tetraploid speciation in snow buttercups (Ranunculus Adoneus): niche differentiation and tetraploid establishment

Chromosome doubling plays an important role in generating new species of flowering plants. However, reproductive incompatibilities between newly formed tetraploid plants and their diploid progenitors are expected to create a significant barrier to the persistence and establishment of neopolyploid populations. Ecological differentiation can reduce this barrier via prezygotic isolation arising from spatial separation. Alternatively, superior viability or fecundity of neotetraploid plants might compensate for the reproductive cost of incompatible pollen from diploid neighbors. The performance of plants of both cytotypes can be assessed in their respective habitats through reciprocal transplants, although such experiments have not been used previously in the study of tetraploid speciation. We used a series of seed and seedling transplant experiments to assess ecological differentiation and competitive ability during early establishment phases for tetraploid and diploid forms of the snow buttercup (Ranunculus adoneus). At two sites, seeds from diploids and tetraploids had similar germination probabilities. Tetraploid snow buttercup seedlings had a significant growth advantage in a controlled environment chamber experiment. However, in the field diploid and tetraploid buttercup seedlings did not differ consistently in survival or growth, nor did the two cytotypes show reciprocal advantages in performance, as expected if ecological differentiation has occurred. At the seed and seedling stages, neither niche differentiation nor tetraploid competitive superiority appears sufficient to explain neotetraploid success in the presence of their diploid progenitors.