中国南蛇藤属(卫矛科)一新记录种及其意义

在开展南蛇藤属分类修订的过程中,于2011年在中国云南省西双版纳傣族自治州勐腊县发现南蛇藤属中国分布新记录——拟独子藤（Celastrusmonospermoides）。该种形态与独子藤（C．monospermus）较为相似,主要区别为前者叶片窄椭圆形,先端渐尖,果实成熟后不具雌蕊柄,种子长12mm以内;后者叶片椭圆形、阔椭圆形至倒卵椭圆形,果实具有明显的雌蕊柄,种子长15Inn以上。分子系统学研究表明,拟独子藤与独子藤处于不同分支中,与青江藤（C．hindsii）系统关系最近。由于原记录仅分布于印度尼西亚、马来西亚和菲律宾等热带地区,因此在原产地和我国云南省之间的地区应有更多居群分布,这为探讨南蛇藤属的起源和扩散提供了线索。     

浙江含笑属一新种——尾叶含笑（英文）

该文报道了采自中国浙江庆元县百山祖国家级自然保护区木兰科含笑属一新种——尾叶含笑(Michelia caudata M.X.Wu,X.H.WuG.Y.Li),该种与野含笑(M.skinneriana)和紫花含笑(M.crassipes)相近,但与野含笑的区别在于叶片倒卵形至倒卵状椭圆形,叶背面密被黄褐色茸毛,长5~7.5cm,宽2.5~3.2cm,先端尾尖,侧脉每边约6对,花被片椭圆形;与紫花含笑的区别在于花被片淡黄色,雌蕊群柄长3~4mm。根据国际自然及自然资源保护联盟(IUCN)红色名录分类标准,尾叶含笑濒危等级为极度濒危。     

浙江含笑属一新种——尾叶含笑

该文报道了采自中国浙江庆元县百山祖国家级自然保护区木兰科含笑属一新种——尾叶含笑(Michelia caudata M.X.Wu,X.H.Wu & G.Y.Li),该种与野含笑(M.skinneriana)和紫花含笑(M.crassipes)相近,但与野含笑的区别在于叶片倒卵形至倒卵状椭圆形,叶背面密被黄褐色茸毛,长5～7.5 cm,宽2.5～3.2 cm,先端尾尖,侧脉每边约6对,花被片椭圆形;与紫花含笑的区别在于花被片淡黄色,雌蕊群柄长3～4 mm。根据国际自然及自然资源保护联盟(IUCN)红色名录分类标准,尾叶含笑濒危等级为极度濒危。     

越南拟单性木兰属一新组合

粗壮光叶拟单性木兰（Magnolia nitida var. robusta）被转移到拟单性木兰属,升级为种的等级。它与光叶拟单性木兰不同,特征是：长叶片,长叶柄,雌蕊短于雄蕊（相反,雌蕊长于雄蕊）,花两性或雄性（花两性）,被片乳白色（黄色）,附属物尖（3.-3.5mm）。     

卫矛科中的倍半萜成分

卫矛科(Colastraceae)植物在我国分布较广,其中一些种为巾草药所用,很多种民间常作为天然杀虫药。最近,我们从4种卫矛科植物大芽南蛇藤(C. gemmatus Loesen.)、灯油藤(C. paniculatus Willd.)、少果南蛇藤(C. rosthornianus Loesen.)和白杜(E. bungeanus Maxim.)的根皮或其种子中分离得30多个倍半萜化学成分。     

中国蜘蛛抱蛋属一新记录种——合瓣蜘蛛抱蛋

首次报道中国蜘蛛抱蛋属一新记录种——合瓣蜘蛛抱蛋Aspidistra connata H.-J.Tillich,该种与辐花蜘蛛抱蛋A.subrotata Y.Wanet C.C.Huang相似,但叶片长椭圆形至长卵状椭圆形,花被顶端8～10裂,裂片线形,顶端联合不分开,形成一个笼状包围着雌蕊可与后者区别。凭证标本存放于广西植物标本馆(IBK)。     

越南拟单性木兰属一新组合

粗壮光叶拟单性木兰(Magnolia nitida var. robusta)被转移到拟单性木兰属(Parakmeria),升级为种的等级。它与光叶拟单性木兰不同,特征是:长叶片,长叶柄,雌蕊短于雄蕊,花两性或雄性,被片乳白色,附属物尖 (3~3.5 mm)。     

小叶买麻藤

<正>小叶买麻藤[Gnetem parvifolium(Warb.) C. Y. Cheng ex Chun]为买麻藤科(Gnetaceae)买麻藤属植物,常绿木质缠绕藤本;茎节膨大:茎枝圆形,皮灰褐色,皮孔明显。叶椭圆形或长倒卵形,革质,长2.5～10cm,宽1.5～5 cm,先端急尖,基部宽楔形。雄花序不分枝或一次分枝,分枝三出或成两对;雌球花序多生于老枝上,一次三出分枝。种子长椭圆形,成熟时假种皮红色,无种柄或近无柄。花期4-7月;种子7-11月成熟。分布于广东、广西、海南、湖南、江西、福建、贵州,老挝和     

苦皮藤种子的发芽试验

苦皮藤（Celastrus angulatus）属于卫矛科南蛇藤属的木质藤本植物，其根皮和种子具 有很好的杀虫效果，是一种有开发潜力的天然杀虫剂。苦皮藤的种了含油率达40—42％，是很好的工业炼油原料，种皮和种油均含天然红色素。果实成熟时为红色，十分美观，具有较高的观赏价值。据报道，与苦皮藤同属的美洲南蛇藤(C.scendes)，种子有休眠的生理特性，其种皮对胚 的萌发有抑制作用。在5℃环境下，通过层积2—6个月才能打破种子的休眠状态。然而苦皮 藤种子是否也具有休眠特性?其休眠原因是什么?如何打破其休眠?何时是播种的最佳时期?我们在引种…     

苦草属植物雄花果实种子显微结构的研究

苦草属植物体外部形态相似,叶线行或带形,野外难以直接鉴定到种,而雄花雄蕊数目、果实和种子的显微结构是苦草属(Vallisneria)植物物种的鉴别性特征之一。苦草属物种的雄花小,仅有1.5 mm,人工解剖雄花观察方法难以实现雄花雄蕊数目的识别;本研究采用雄株雄佛焰苞水培预培养技术获取自然开放的雄花并利用解剖学显微镜对3种苦草属植物雄花、果实和种子进行了解剖观察和研究。显微结构观察表明,苦草(V. natans)雄蕊1枚,果实圆柱形,表面光滑,种子无翅,具纵条纹;刺苦草(V. spinulosa)雄蕊2枚,果实三棱形,棱上具刺,种子具翅;密刺苦草(V. denseserrulata)雄蕊2枚,果实三棱圆柱形,表面光滑,种子无翅。依据文献,密刺苦草、刺苦草、长梗苦草(V. longipedunculata)和安徽苦草(V. anhuiensis)是安徽苦草属新分布记录种,其中长梗苦草和安徽苦草是分布于安徽的新种。     

A new species of sisorid catfish of the genus Exostoma from the Salween drainage,Yunnan, China

A new species of the sisorid catfish genus Exostoma Blyth,1860 was collected from two hill-stream tributaries of the Nujiang (Salween River) drainage in Gaoligong Mountain,south-western Yunnan Province,China from 2003 to 2006 and from two tributaries of the Salween River in Cangyuan County,Lingcang Prefecture,Yunnan Province,China (in 2007) and in Yongde County,Lingcang Prefecture,Yunnan Province,China (in 2015).Exostoma gaoligongense sp.nov.is the 10th species of the genus and is most similar to E.vinciguerrae in morphology but can be distinguished by pelvic fin reaching anus vs.not reaching;maxillary barbels just reaching or slightly surpassing pectoral-fin origin vs.surpassing pectoral-fin origin or even reaching posterior end of gill membrane;abdominal vertebrae 23-25 vs.25-27;length of dorsal fin/dorsal to adipose distance 90.3％-287.0％ vs.59.2-85.7.A key to Exostoma spp.is provided.     

Ilex sanqingshanensis sp. nov. (Aquifoliaceae) from Jiangxi Province,China

Ilex sanqingshanensis, a new species of Aquifoliaceae from Jiangxi, China, is described and illustrated with morphological characteristics and ultrastructure of pollen grains. The new species is easily distinguished from the most similar species I. wugongshanensis C. J. Tseng ex S. K. Chen et Y. X. Feng by having smaller leaves that are elliptic, ovate or elliptic‐ovate, with shorter (0.5–1.0 vs 2–3 mm) teeth on the leaf margin, longer pedicels of staminate flowers (2.0–3.5 vs 1.5 mm), smaller pyrenes (3.5–4.0 × 2.0–2.5 vs 4.5–5.0 × 3.0 mm), and woody pyrenes (vs stony pyrenes).     

中国杜鹃花科一新记录属及铁线莲属一新种

报道杜鹃花科仙女越橘属(Andromeda)在中国东北吉林省的新分布记录,该属为单型属,广布于北美北部、欧洲北部和东亚北部,但以前中国境内未有记录。本文提供了本属的形态描述和植物野外生境照片。另外,还描述了产自云南西双版纳的铁线莲属一新种易武铁线莲Clematis peii,并绘图。该新种隶属于威灵仙组（sect. Clematis）并与C.chingii近缘,不同点在于,该新种为三出复叶,小叶片近全缘,花药较长（约3mm）,且药隔显著凸出,并讨论了该新种与sect. Clematis中其它具有三出复叶的种类在形态上的区别。     

A Newly Recorded Genus of Ericaceae and Clematis peii sp.nov. (Ranunculaceae) from China*

Andromeda is recorded for the first time in north eastern China near the border between China and DPR Korea. This monotypic genus is widely distributed in Northern America, Europe, and Northern Asia but has not been reported in China before. The genus and species, A.polifolia, is described, and the pictures of the plant and its habitats are presented. Also in this paper, a new species, Clematis peii from Xishuangbanna, southern Yunnan, China, is described and illustrated. The new species belongs to sect. Clematis and is closely related to C.chingii, but differs in its ternate leaves with nearly entire leaf margin and long anthers (nearly 3mm long) with protruding connectives. Other close allies with ternate leaves were also compared in this study.     

马关铁线莲,云南毛茛科一新种（英文）

描述了自云南发现的毛茛科铁线莲属一新种——马关铁线莲,并给出其与近缘种的区别特征。     

A New Species of the Genus Clematis (Ranunculaceae)from Yunnan,China

A species of the genus Clematis (Ranunculaceae), Cmaguanensis, is described as new from Yunnan Province, China, and the diagnostic differences between it and its putative close ally are given.     

中国杜鹃花科一新记录属及铁线莲属一新种

报道杜鹃花科仙女越橘属（Andromeda）在中国东北吉林省的新分布记录,该属为单型属,广布于北美北部、欧洲北部和东亚北部,但以前中国境内未有记录。本文提供了本属的形态描述和植物野外生境照片。另外,还描述了产自云南西双版纳的铁线莲属一新种易武铁线莲Clematispeii,并绘图。该新种隶属于威灵仙组（sect．Clematis）并与C．chingii近缘,不同点在于,该新种为三出复叶,小叶片近全缘,花药较长（约3mm）,且药隔显著凸出,并讨论了该新种与sect．Clematis中其它具有j出复叶的种类在形态上的区别。     

A Conspectus of the Genus Bergenia Moench

In this paper the classification of the genus Bergenia Moench is provided, its geographic distribution analysed, and the phylogeny also traced. Based on an analysis of morphological characters such as leaves, ocreas, branches of inflorescences, Pedicels, hypanthium, sepals, and glandular indumentum, thi genus is divided into 3 sections: 1. Sect. Scopulosae J. T. Pan, sect. nov., 2. Sect. Bergnia, 3. Sect. Ciliatae (A. Boriss.) J. T. Pan, stat. nov. The Sect. Scopulosae J. T. Pan may be considered as the primitive one, while Sect. Ciliatae (A. Boriss.) J. T. Pan may be regarded as the advanced one, with Sect. Bergenia in between. So far, the genus Bergenia Moench comprises 9 species in the total. Southeast Asia and North Asia (south and east Siberia, USSR) each have only 1 species, West Asia (Afghanistan) has 2, Central Asia (Kirghizia-Tajikistan-Uzbekstan area, USSR) 3, South Asia 4 (Nepal has 4, India, Pakistan and Kashmir area each has 3, Bhutan and Sikkim each has 2), East Asia 6. In East Asia, Mongolia and Korea each have only 1 species, but China has 6 (including endemic species 2 and new species 1). Sichuan Province and Xizang Autonomous Region each have 3, Yunnan Province 2, Shaanxi Province (Qinling Mountains) and Uygur Autonomous Region of Xinjiang each have only 1. Thus the distribution centre of this genus should be in the region covering Sichuan, Yunnan and Xizang. Moreover, it is noteworthy that Bergenia scopulosa T. P. Wang in Sect. Scopulosae seems to have retained primitive characters, for example, non-ciliate leaves and ocreas, glabrous pedicels, hypanthium and sepals, and this primitive species is found in Qinling Mountains and Sichuan. According to the distribution of the primitive species, the author suggests that the centre of origin of this genus be in the region covering Qinling Mountains and Sichuan.     

中国隙蛛属一新种及平静隙蛛的再描述(蜘蛛目:暗蛛科)

记述了暗蛛科隙蛛属1新种：光先隙蛛Coelotes guangxiansp．nov．,并对平静隙蛛Coelotes modestus Simon,1880重新进行了描述,同时确认喙状隙蛛C．gypsarpageus Zhu et Wang,1991应为平静隙蛛C．modestus Simon,1880的异名。