根茎兜兰——缅甸兰科一新种(英文)

基于采自缅甸北部的栽培植物,对兰科新种根茎兜兰(Paphiopedilumrhizomatosum)作了描述和绘图。此新种具长8～10cm、粗8～12mm的根状茎与较坚硬的根;与我们所知的种类有极明显的不同。它在花的色泽与形态方面与小叶兜兰(P.barbigerum)相近,区别点还在于叶要大得多,宽达2.5～3.5cm,退化雄蕊先端近截形并有短尖头。     

根茎兜兰——缅甸兰科一新种

基于采自缅甸北部的栽培植物,对兰科新种根茎兜兰（Paphiopedilum rhizomatosum)作了描述和绘图。此新种具长8－10cm、粗8－12mm的根状茎与较坚硬的根;与我们所知的种类有极明显的不同。它在花的色泽与形态方面与小叶兜兰（P.barbigerum)相近,区别点还在于叶要大得多,宽达2.5-3.5cm,退化雄蕊先端近截形并有短尖头。     

兜兰属宽瓣亚属（广义）的补充研究

对新种小囊兜兰Paphiopedilum globulosum与新变种扁球兜兰P．micranthum var．oblatum作了描述与绘图。两者均为采自云南东南部的栽培植物,与硬叶兜兰P．micranthum近似。但小囊兜兰具有宽得多的叶(宽2．8～3．4cm),先端多少呈钩状、宽1．1～1．2cm的唇瓣,以及与唇瓣囊口几乎同样大小的退化雄蕊,而扁球兜兰则叶宽2．2～3 cm,唇瓣扁球形,囊深不超过1 cm,可区别于硬叶兜兰。上述种类均属于宽瓣亚属(广义）。该亚属有16个种产中国、越南或两地共有。本文提供了分种检索表。     

香花油茶——山茶属短柱茶组一新种

描述了山茶属短柱茶组新种Camellia osmantha Ye CX,Ma JL et Ye H.新种为灌木,花白色,微有香气.其苞被不分化为苞片和萼片,多数,10～12枚,花瓣6～8枚,均易脱落;雄蕊长短不一,大部分分离;花柱短,基部连生,先端分离,与短柱茶组特征一致.新种花有香气与窄叶短柱茶C.fluviantlis Hand.-Mzt.接近,但前者叶常为倒卵形,具尾尖,后者叶狭披针形,渐尖.     

兜兰属宽瓣亚属（广义）的被充研究

对新种小囊兜兰Paphiopedilum globulosum与新变种扁球兜兰P.micranthum var.oblatum作了描述与绘图。两者均为采自云南东南部的栽培植物,与硬叶兜兰P.micranthum近似。但小囊兜兰具有宽得多的叶（宽2．8－3．4cm),先端多少呈钩状、宽1．1－1．2cm的辱瓣,以及与唇瓣囊口几乎同样大小的退化雄蕊,而扁球兜兰则叶宽2．2－3cm,唇瓣扁球形,囊深不超过1cm,可区别于硬叶兜兰。上述种类均属于宽瓣亚属（广义）。该亚属有16个种产中国、越南或两地共有。本文提供了分种检索表。     

云南菝葜属两新种

新种与圆锥菝葜及大果菝葜有亲缘关系,但后两种叶纸质,先端具短尖;圆锥花序顶端的伞形花序能育;花序托球形;先出叶较小,长不及1厘米,易于区别。     

玲珑兜兰, 中国云南兰科一新种

对中国云南产的兰科新种玲珑兜兰Paphiopedilum microchilum Z．J．Liu et S．C．Chen作了描述和绘图,并简要地讨论了它与彩云兜兰Paph．wardii Summerh．的亲缘关系。     

怪蚤属一新种(蚤目:细蚤科)

宽怪蚤Paradoxopsyllus latus,新种 鉴别特征:本新种雄性与目前世界已知的31种怪蚤均有很大的区别,主要是变形腹节(图2)形态构造甚为特殊。可动突短而阔(新种即由此命名),顶端平,上后角粗鬃下有1骨化脊或1尖锥形小区,密布细小鬃40根左右;不动突基本上拇指状,端有锯齿,其长度仅达可动突前缘的1/4弱,最宽处约为可动突最宽处的1/5,抱器体比可动突小,     

兜兰珍种——亨利兜兰

亨利兜兰（Ｐａｐｈｉｏｐｅｄｉｌｕｍｈｅｎｒｙａｎｕｍ）是Ｇ．Ｆ．Ｂｒａｅｍ于１９８７年发表的兰科兜兰属新种。其种名来自英国人亨利（Ａ．Ｈｅｎｒｙ）（１８５７—１９３０）的姓氏，以纪念他１９世纪末在中国卓有成就的植物采集和发现工作。亨利兜兰产于我国云...     

心启兜兰，兜兰属宽瓣亚属的一个新增种

描述了兰科兜兰属的一个新种——心启兜兰Paphiopedilum singchii Z．J．Liu et J．Y．Zhang。模式标本系深圳市梧桐山苗圃总场的栽培植物。原植物可能采自云南南部近中越边境处。     

Paphiopedilum microchilum,a new species of Orchidaceae from Yunnan,China

Paphiopedilum microchilum Z. J. Liu et S. C. Chen from Yunnan, China, is described and illustrated. Its affinity with Paph. wardii Summerh. is briefly discussed.     

Additional notes on the subgenus Brachypetalum (s. l.) of Paphiopedilum

Two new orchid taxa, Paphiopedilum globulosum Z. J. Liu et S. C. Chen and Paphiopedilum micranthum Tang et Wang var. oblatum Z. J. Liu et J. Y. Zhang, are described and illustrated based on cultivated plants originating in southeastern Yunnan. Both of them are related to Paphiopdilum micranthum Tang et Wang, from which the former differs by having much broader leaves 2.8 ~ 3.4 cm wide, a somewhat hooked-tipped lip 1.1 ~ 1.2 cm wide, and a staminode al-most as big as the mouth of the lip, and the latter by broader leaves 2.2 ~ 3 cm wide and an oblate lip at a depth of no more than 1 cm. They all belong to the subgenus Brachypetalum (s. l. ). A key to 16 Chinese and Vietnamese species of this subgenus is provided.     

Paphiopedilum angustifolium,A New Species of Orchidaceae from Vietnam

Paphiopedilum angustifolium R.F.Guo et Z.J.Liu,sp.nov.Fig.1:1-8.Species nova Paphiopedilo puberulo S.P.Lei et J.Y.Zhang affinis,a quo differt staminodio ovato-cordato glabro viridulo praeter centrum vitta una lata alba et ab ejus latere alterutro alia viridi-fusca praeditum.     

Paphiopedilum× yingjiangense,a New Hybrid of Orchidaceae from China

Paphiopedilum× yingjiangense Z . J . Liu et S . C . Chen , a new hybrid from China, is described and illustrated. This entity may be a natural hybrid between Paphiopedilum villosum and P . wardii . It differs from the former by having obscurely deep and light green nets on upper surface of leaves, a pale yellow-green flower with fine dark purple spots on petals and lower part of dorsal sepal and broadly ovate-orbicular staminode without a central glossy knob; from the latter by longer leaves not obviously mottled pale and dark bluish green above nor densely spotted purple below, a much larger flower, and a broadly ovate-orbicular staminode .     

On Paphiopedilum malipoense sp. nov.—An Intermediate Form Between Paphiopedilum and Cypripedium,with a Discussion on the Origin of the genus

Paphiopedilum malipoense S. C. Chen et Tsi is a very interesting new species with its flower similar to that of Cypripedium, especially section Cypripedium. It belongs to subgenus Brachypetalum, the most primitive group of Paphiopedilum, but differs from its allied species in hgniva elliptic-lanceolate sepal with cuspidately acuminate apex, rather narrow petals and horizontal lip, which are of common occurrence in many cypripediums, but very rare in paphiopedilums. Apparently, this is an intermediate form, or a link, between Paphiopedilum and Cypripedium, but it does not seem to arise from hybridization between them, because no Cypripedium has been found wherever Paphiopedilum occurs. The new species is distributed in southeastern Yunnan of China. In this area, as well as in river valleys of western Yunnan or the Hengduan Mountains, there have been four species of the same genus reported before. As we know, the Hengduan Mountains and their adjacent areas are rich in Cypripedium. The differentiation of the genus there is remarkable. All five sections it contains occur there and three of them are quite distinctive. For example, the general appearance of the section Bracleosa is dissimilar to that of any other cypripediums, but closely resembles that of Listera. It appears that the difference between sect. Bracteosa of Cypripedium and sect. Brachypetalum of Paphiopedilum is not necessarily wider than that between sect. Bracteosa and sect. Cypripedium of the same genus. Apparently, it is reasonable to consider Paphiopedilum to be an evolutional branch of Cypripedium extending into tropical area, with its primitive group (subgenus Brachypetalum) still remaining in its northern fringe area. This primitive subgenus has eight species, distributed from western Yunnan to the Malay Peninsula. Five of them, including the intermediate and primitive form published here, are found in the hilly land of southeastern Yunnan and the river valleys of western Yunnan. All these facts suggest its area of origin: the river valleys of the Hengduan Mountains and the lower hilly land contiguous to the southof them.     

Paphiopedilum singchii sp. nov., an addition to the subgenus Brachypetalum of Paphiopedilum (Orchidaceae)

Paphiopedilum singchii Z. J. Liu et J. Y. Zhang is described based on two flowering plants cultivated in the Shenzhen City Wutongshan Nurseries. It was said that the plants were collected from southern Yunnan.     

兰属、兜兰属、石斛属植物叶片的扫描电镜观察

对兰科植物的兰属、兜兰属及石斛属１６个种折叶片及其横断面进行了扫描电镜的观察。兰属各种叶片上表皮细胞均为矩形,上表皮细胞表面具小乳突或不明显突起。石斛属及兜兰属的各个种上下表皮细胞均为多边形,但石斛属表皮细胞表面无坦无纹饰,而兜兰属花叶类上表皮细胞表面明显呈乳突状,绿叶类呈龟背状隆起。兰属及石斛属叶片叶肉组织没有栅栏组织及海绵组织的分化,而兜兰属的绿叶类叶肉不分化;花叶类叶肉有分化。