云南凤仙花属一新种及一新记录种（英文）

报道了在云南西南部发现的凤仙花属一新种——滇红凤仙花(Impatiens quintadecimacopii G. W. HuQ. F. Wang)和一新记录种——伸展凤仙花(I. porrecta Wall. ex Hook. f.Thomson)。这两个种在形态上很相似,但在花色、侧萼片形状、旗瓣形状和蒴果颜色上明显有别。根据形态特征,这两个种应属于凤仙花亚属(I.subg. Impatiens)单花组(I. sect. Uniflora)。结合核糖体DNA内转录间隔区序列(ITS)与叶绿体atpB-rbcL间隔区序列开展系统发育分析,结果进一步确认了这两个种关系紧密,以及它们在单花组内的系统位置。     

滇东南荨麻科楼梯草属一新系和一新种

描述了采自云南省东南部楼梯草属一新种——柳叶楼梯草（Elatostema neriifolia）和据其为模式建立的一新系——柳叶楼梯草系（ser. Neriifolia）,并讨论了这些新类群和相近类群在形态上的区别,并对柳叶楼梯草的保护等级进行了评估。     

贵州省凤仙花属6个新记录种

报道了贵州省凤仙花属（Impatiens）6个新记录种（含1变种）,分别是锐齿凤仙花（Impatiens arguta Hook.f.& Thomson.）、线萼凤仙花（Impatiens linearisepala S.Akiyama, H.Ohba & S.K.Wu）、川鄂凤仙花（Impatiens fargesii Hook.f.）、林生凤仙花（Impatiens lucorum Hook.f.）、雅致黄金凤（Impatiens siculifer var. mitis Lingelsheim & Borza）和田林凤仙花（Impatiens tianlinensis S.X.Yu & L.J.Zhang）。该文提供了新记录种形态特征照片和地理分布,凭证标本保存于贵州大学林学院树木标本室（GZAC）。     

广西凤仙花属(凤仙花科)一新变种——瑶山凤仙花

描述了中国广西凤仙花科Balsaminaceae凤仙花属Impatiens一新变种——瑶山凤仙花I. macrovexilla var. yaoshanensis S. X. Yu, Y. L. Chen ＆ H. N. Qin。该变种与原变种不同在于叶卵圆形或卵状矩圆形, 侧生萼片全缘, 翼瓣的上部裂片全缘, 翼瓣背部的小耳明显, 此外花粉形态和种皮纹饰等性状也支持该变种的建立。     

中国凤仙花属一新记录种——三瓣凤仙花

报道了产自中国云南的凤仙花属一新记录种:三瓣凤仙花(Impatiens tripetala Roxb. ex DC.)。该种原产于孟加拉国和印度,本次在中国为首次发现。该种与缅甸凤仙花(I. aureliana Hook. f.)外形相似,但前者花单生或簇生,唇瓣囊状,深10～17 mm,距长5.5～8 mm,蒴果光滑,以此与后者相区别。凭证标本存放于湖南师范大学植物标本馆(HNNU)。     

中国凤仙花属(凤仙花科)一新记录种——高大凤仙花

报道了中国凤仙花属一新记录种——高大凤仙花(Impatiens kerriae Craib)。该种原产于泰国,在中国为首次记录。该文对高大凤仙花的特征进行了详细描述,尤其是对花果特征及花果期进行了重新描述和补充。凭证标本存放于中国科学院西双版纳热带植物园标本馆(HITBC)。     

河南凤仙花属一新种

本文发表了河南凤仙花属一新种,即奇异凤仙花Impatiens paradoxa C.S.Zhu et H.W.Yang,sp.nov.     

云南省凤仙花属(凤仙花科)2新记录种

报道了云南省凤仙花科(Balsaminaceae)凤仙花属(Impatiens L.)植物2新记录,即睫毛萼凤仙花(I.blepharosepala Pritz.ex Diels)和红雉凤仙花(I.oxyanthera Hook.f.),并提供了形态描述及其图片,凭证标本保存于重庆三峡学院生命科学与工程学院植物标本馆。该报道的睫毛萼凤仙花花色为白色,红雉凤仙花植株茎、叶皆被微柔毛,茎有分枝,小枝细,丰富了2个物种的形态描述。     

凤仙花属（Impatiens L.）10种植物花粉形态的扫描电镜观察

利用扫描电镜观察了10种凤仙花属（Impatiens L.）植物的花粉形态。结果表明：本属花粉为单粒花粉,呈长圆形至长矩圆形,大小为20.3～46.7 μm,具角萌发孔,网状纹饰,网眼明显;根据花粉网状纹饰中网眼内是否具颗粒状突起可将其分为2类：（1）网眼内无或近无颗粒状突起,黄金凤（I. siculifer）和婺源凤仙花（I. wuyuanensis）的花粉纹饰属于这一类型;（2）网眼内有明显颗粒状突起,其余8个种的花粉纹饰均属于该类型。研究表明,花粉特征,特别是花粉粒网状纹饰中网眼内有无颗粒状突起及颗粒状突起的形态等特征,在凤仙花属内常具种水平上的可见变异,因而可作为种类划分的依据,它们在分类学上的价值应予以关注。     

中国蜘蛛抱蛋属植物一新记录种——垂花蜘蛛抱蛋

报道了产自云南屏边的中国蜘蛛抱蛋属一新记录种——垂花蜘蛛抱蛋（Aspidistra nutans Aver.&Tillich）。该种是2017年发表的新种,采集于越南西北部地区,原文缺少果实描述,现补充描述该种果的形态特征。本种与辐花蜘蛛抱蛋（A.subrotata Y.Wan&C.C.Huang）在形态上相近,但其叶片中脉和侧脉明显突出,花梗近先端向下弯曲,长0.8~4.5 cm,花下垂,常贴生于地面,花被紫褐色,常平展,柱头纯白色（后者叶脉凹陷,花梗直立,长约5 mm,花斜向上开,花被暗紫色,内面具有小乳突,柱头白色带紫色斑点）而显著有别于后者。     

Impatiens zhuxiensis (Balsaminaceae), a new species of Hubei,China

A new species of Impatiens L. from Hubei, China, Impatiens zhuxiensis Q.L. Gan & X.W. Li, is described and illustrated. Impatiens zhuxiensis resembles I. nasuta Hook. f. and I. compta Hook. f. and these are the only species in I. sect. Impatiens with a long abaxial rostrum on the midvein of the dorsal petal. However, the flowers of I. zhuxiensis are yellow while those of I. nasuta and I. compta are deep purple-red and pale purple-blue, respectively; I. zhuxiensis has the midvein of the dorsal petal abaxially elongated into a pointed rostrum near the apex, whilst the rostrum of I. nasuta is elephant-trunk-shaped near the middle, and that of I. compta is recurved near the apex. A molecular phylogenetic analysis of Impatiens based on ITS, atpB-rbcL and trnL-F supported these three species as closely allied and that they belong to I. sect. Impatiens.     

凤仙花属总状花序组的花粉形态及其分类学意义

总状花序组隶属于凤仙花亚属凤仙花属,以具多花的总状花序、侧生萼片2枚、子房5室、果实为线状圆柱形、种子多数、迈卵形、种皮表面具指状突起等特征区别于该亚属的其他类群。前人对凤仙花花粉形态的研究表明凤仙花属的花粉形态对于属下分类及种间界定具有重要的分类学价值。而对于总状花序组来说,有关花粉形态方面的研究少有报道,为了进一步探讨该组花粉S的形态特征及其分类学意义,该研究应用扫描电镜技术对总状花序组的21种植物的花粉进行了观察。结果表明:总状花序组植物的花粉粒均具4条萌发沟,两侧对称,极面观为矩圆形、长矩圆形或近方形;长赤道面观多为椭圆形至矩圆形,短赤道面观为椭圆形;长、短赤道轴比值多在1.4~2.4范围内;表面具网状纹饰,网眼在花粉粒表面均匀分布或赤道面的网眼较极面观的小,网脊边缘光滑或具波状突起,网眼内具不同密度的颗粒状突起。该组的花粉形态与宏观形态性状相关性较小,但花粉极面观形状、长短赤道轴的比值、网眼的分布、网脊边缘形状、网眼内颗粒物密度等特征具有种水平上的稳定性和特异性,对该组植物种间界定具有重要的意义。     

云南凤仙花属新类群

记述了云南产凤仙花属(Impatiens L．)19个新种1个新变种。即：长喙凤仙花;怒江凤仙花;德钦凤仙花;德浚凤仙花;片马凤仙花;文山凤仙花;老君山凤仙花;麻栗坡凤仙花;版纳凤仙花;昔马凤仙花;孙氏凤仙花;大关凤仙花;马楠凤仙花;绥江凤仙花;紫溪凤仙花;滇南凤仙花;耳叶棒凤仙花;二甫凤仙花;半坡凤仙花;大甫凤仙花。     

Impatiens angulata (Balsaminaceae), a new species from Guangxi, China

Impatiens angulata S. X. Yu, Y. L. Chen et H. N. Qin sp. nova (Balsaminaceae), a new species from Guangxi, China, is described and illustrated. This species is close to I. hainanensis in morphological characters . Both have succulent stems, 4 lateral sepal connected upper lobes of lateral united petals, but are distinguished by the base of stems with 6–9 ridges, leaves oblong or oblanceolate, the outer lateral sepals with 9 veins, inner lateral sepals ovate and dorsal sepal with deep bilobate spur.     

Ipomopsis sancti-spiritus (Polemoniaceae), a new species from northern New Mexico

Ipomopsis sancti-spiritus, a new species in sect.Ipomopsis, from the mountains of northern New Mexico is described and illustrated. The purplish calyx, pink corolla, and a short pistil with the stigma situated below the included stamens represent a unique combination of characters. The new species is similar toI. arizonica but differs primarily in corolla color and in length of the pistil.     

Native jewelweed,but not other native species,displays post‐invasion trait divergence

Invasive exotic plants reduce the diversity of native communities by displacing native species. According to the coexistence theory, native plants are able to coexist with invaders only when their fitness is not significantly smaller than that of the exotics or when they occupy a different niche. It has therefore been hypothesized that the survival of some native species at invaded sites is due to post‐invasion evolutionary changes in fitness and/or niche traits. In common garden experiments, we tested whether plants from invaded sites of two native species, Impatiens noli‐tangere and Galeopsis speciosa, outperform conspecifics from non‐invaded sites when grown in competition with the invader (Impatiens parviflora). We further examined whether the expected superior performance of the plants from the invaded sites is due to changes in the plant size (fitness proxy) and/or changes in the germination phenology and phenotypic plasticity (niche proxies). Invasion history did not influence the performance of any native species when grown with the exotic competitor. In I. noli‐tangere, however, we found significant trait divergence with regard to plant size, germination phenology and phenotypic plasticity. In the absence of a competitor, plants of I. noli‐tangere from invaded sites were larger than plants from non‐invaded sites. The former plants germinated earlier than inexperienced conspecifics or an exotic congener. Invasion experience was also associated with increased phenotypic plasticity and an improved shade‐avoidance syndrome. Although these changes indicate fitness and niche differentiation of I. noli‐tangere at invaded sites, future research should examine more closely the adaptive value of these changes and their genetic basis.     

Gene flow between Impatiens radicans and I. javensis (Balsaminaceae) in Gunung Pangrango, central Java, Indonesia

This study reports the natural hybridization of two species of Impatiens in the mountain forests of Gunung Gede-Pangrango, in central Java, Indonesia. Impatiens radicans, which inhabits the highest altitude zone in the mountains of this park, and I. javensis, which inhabits a zone of lower altitude, can be easily distinguished by their morphological features. However, some populations that inhabit regions between the two zones have characteristics that appear to be combinations of traits of I. radicans and I. javensis. Sequence analysis of the 800-bp nuclear ITS region and 449-bp plastid trnL-F locus demonstrated that hybridization between the two species has occurred, and suggests gene flow between the species.     

A new species of Centaurea (sect. Phalolepis, Compositae: Cardueae) from eastern Peloponnisos, Greece

A new species of Centaurea L. , Centaurea leonidia Kalpoutz. & Constantin. , from two localities west and south-west of the town of Leonidio in eastern Peloponnisos, Greece, is described and illustrated. It belongs to C . sect. Phalolepis , and taxonomically its closest relatives are C. heldreichii Halácsy , a very localized species from south-west Sterea Ellas (Greece) and, surprisingly, C. niederi Heldr., which belongs to sect. Acrolophus. The new species is currently known from two populations of less than 100 individuals each, growing on almost inaccessible cliffs close to the convent of Agios Nikolaos Sintzas (St. Nicolas of Sintza) and the slopes of Poundes summit. Several other Greek endemic species are found in the same areas. Centaurea leonidia is scientifically important as it belongs to a small group of taxa, which, although they are members of sect. Phalolepis , have close allies in sect. Acrolophus. The chromosome number of C. leonidia , 2 n  = 18, counted in root tips, is also reported and illustrated.  © 2004 The Linnean Society of London, Botanical Journal of the Linnean Society , 2004, 146 , 375–383.     

滇水金凤转录因子TT8的克隆及表达分析

为探究滇水金凤(Impatiens uliginosa L.)TT8(TRANSPARENT TESTA 8)基因的功能和表达特性,并解析其对滇水金凤花色的影响,研究以滇水金凤花器官为材料,通过RT-PCR等技术克隆IuTT8基因,并对其进行生物信息学分析;利用qRT-PCR分析该基因在不同花色和不同花发育阶段的表达模式。结果表明,(1)成功克隆得到滇水金凤IuTT8基因,其编码区全长为2 136 bp,编码711 aa,为亲水性不稳定蛋白,gDNA全长为3 938 bp,共有6个内含子;结构域分析发现该蛋白属于bHLH超家族成员,与喜马拉雅凤仙花、山茶等物种的TT8蛋白同源且Motif基序相似。(2)IuTT8与同属植物喜马拉雅凤仙花的聚在一支,相似性约86.34%;多序列比对和系统进化分析显示TT8蛋白的结构域高度保守。(3)IuTT8基因在4种不同花色滇水金凤及其4个不同发育阶段均有表达,除白色外,其表达量均随花发育的进行呈先升后降的趋势;且IuTT8基因的表达量与花色呈正相关,其中以深红色表达量最高,白色表达量最低,深红色S3的表达量约为白色S2时期的48倍。研究表明滇水金凤I...