兰科一新属和新亚族——丫瓣兰属和丫瓣兰亚族

基于丫瓣兰Ypsilorchis fissipetala (Finet)Z.J.Liu,S.C.Chen &L.J.Chen(基名为裂瓣羊耳蒜Liparis fissipetala Finet)建立了兰科新属--丫瓣兰属Ypsilorchis Z.J.Liu,S.C.Chen&.J.Chen.新属与羊耳蒜属Liparis的区别点为:新属有两个粉蜡质花粉团:每个花粉团具1个多少有弹性的花粉团柄;花瓣二深裂;叶具强烈波状的边缘,其先端有一个长达1 mm的芒尖.这些特征表明了其与羊耳蒜亚族Liparidinae有明显的差别,为此,建立了一个新的亚族--丫瓣兰亚族Ypsilorchidinae Z.J.Liu,S.C.Chen &L.J.Chert.     

Ypsilorchis and Ypsilorchidinae,a new genus and a new subtribe of Orchidaceae

A new orchid genus, Ypsilorchis Z. J. Liu, S. C. Chen & L. J. Chen, is established based on Ypsilor-chis fissipetala (Finet) Z. J. Liu, S. C. Chen & L. J. Chen (basionym: Liparis fissipetala Finet). The new genus differs from Liparis and its allies by having two granular-waxy pollinia each with a somewhat elastic caudicle, deeply bilobed petals and strongly crisped-margined leaves with an apical awn to 1 mm long. These features are an indication of its distant relation to the members of the subtribe Liparidinae, and thus a new subtribe, Ypsilor-chidinae Z. J. Liu, S. C. Chen & L. J. Chen, is proposed.     

彩云兜兰及其近缘种的研究

简要讨论了彩云兜兰及其近亲种的亲缘关系;描述了两个新种：缅甸兜兰Paphiopedilum burmanicum J．Y．Zhang et Z．J．Liu和短唇兜兰Paphiopedilum brevilabium Z．J．Liu et J．Y．Zhang;并提供了一个图版和有关5个种的分种检索表。     

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.     

Singchia and Gunnaria, two new genera of Orchidaceae

Singchia Z. J. Liu ＆ L. J. Chen, a new orchid genus, is established based on the new species S. malipoensis Z. J. Liu ＆ L. J. Chen found in southeast Yunnan, China. The new genus is related to Pteroceras, from which it differs by having a lip with its basal margins immovably adnate to the lower part of the pendent column foot, a thin-walled spur, and very unequally and deeply split pollinia, each with a distinct caudicle. In addition to a discussion on Ascocentrum pusillum, a species of questionable placement, another new genus, namely Gunnaria S. C. Chen ex Z. J. Liu ＆ L. J. Chen, is set up and a new combination, namely G. pusilla （Aver.） Z. J. Liu ＆ L. J. Chen, is made. The new genus Gunnaria differs from its allyAscocentrum by having a cross-shaped pollinarium, sulcate or split pollinia, each with a distinct caudicle attached to a common linear stipe much longer than either pollinia or viscidium, and strongly incurved side lobes of the lip.     

开口箭属一新种及其核型和花粉形态

文章报道了新种屏边开口箭T．pingbianensis J．L．Huang et X．Z．Liu及其核型和花粉形态。屏边开口箭的核型公式为2n=38=14m+lOsm+8st+6t,具明显的二型性,属3C型。花粉粒为球形,无萌发孔沟,外壁具皱块状纹饰。从花结构、核型和花粉形态上看,屏边开口箭和伞柱开口箭T．fungilliformis Wang et Liang亲缘关系近,而且伞柱开口箭比屏边开口箭在一系列特征上都较特化。     

A New species of the Genus Tupistra (Convallariaceae), with Reference to Its Karyotype and Pollen Morphology

A species of the genus Tupistra,T．pingbianensis J．L．Huang et X．Z．Liu,is described as new,and its karyotype and pollen morphology are reported． The bimodal karyotype of this species is formulated as 2n＝38＝14m+10sm+8st+6t,and pollen grains are spheroidal,inaperturate,with rugulate exine sculpture．Based on its floral structure,karyotype and pollen morphology,T．pingbianensis J．L．Huang et X．Z．Liu is considered phylogenetically closely related to T．fungilliformis Wang et Liang．Whether the repense rhizome,solitary leaves of T．pingbianensis J．L．Huang et X．Z．Liu indicate a close relationship between the genus Tupistra and the genus Aspidistra needs further studies．     

中国兰科石豆兰属（Bulbophyllum）二新种

对兰科（Orchidaceae）石豆兰属（Bulbophyllum）二新种,副萼石豆兰（B.malipoense Z.J.Liu,L.J.Chen＆W.H.Rao）和小副萼石豆兰（B.minor Z.J.Liu,L.J.Chen＆W.H.Rao）作了描述和绘图。该二新种属于石豆兰属副萼组（Bulbophyllumsection BisetaJ.J.Verm.ex N.Pearce,P.J.Cribb＆J.Renz）,与该组的刺萼石豆兰（B.bisetum Lindl.）相似,区别在于两新种的叶片先端二裂和唇瓣无毛。小副萼石豆兰与副萼石豆兰的区别在于假鳞茎椭圆球形;叶片卵状椭圆形,长1.2～2 cm;侧副萼片较短,长约1 mm;中副萼片几乎与两侧萼片边缘合生。     

兰属腋花组若干种类的研究

对新种丽花兰Cymbidium concinnum Z. J. Liu &; S. C. Chen和新变种龙州兰C. eburneum var. longzhouense Z. J. Liu &; S. C. Chen进行了描述和绘图; 丽花兰与大雪兰C. mastersii Griff. ex Lindl.有亲缘关系, 区别点在于新种叶片先端不分裂, 花序具18-22朵花, 唇瓣中裂片上有一个V型的紫红色斑块; 龙州兰(变种)与独占春(原变种)的主要区别在于唇瓣中裂片上和侧裂片顶部有较密的紫红色斑。对象牙白C. maguanense的分类问题进行了讨论, 并为其指定了新模式; 还为腋花组sect. Eburnea国产种类提供一个检索表。     

峨眉山鸡矢藤属（茜草科）二新种

描述了四川峨眉山（茜草科）鸡矢藤属二新种,即峨眉鸡矢藤与长冠鸡矢藤。     

中国兰科石豆兰属(Bulbophyllum)二新种(英文)

对兰科(Orchidaceae)石豆兰属(Bulbophyllum)二新种,副萼石豆兰(B.malipoense Z.J.Liu,L.J.ChenW.H.Rao)和小副萼石豆兰(B.minor Z.J.Liu,L.J.ChenW.H.Rao)作了描述和绘图。该二新种属于石豆兰属副萼组(Bulbophyllumsection BisetaJ.J.Verm.ex N.Pearce,P.J.CribbJ.Renz),与该组的刺萼石豆兰(B.bisetum Lindl.)相似,区别在于两新种的叶片先端二裂和唇瓣无毛。小副萼石豆兰与副萼石豆兰的区别在于假鳞茎椭圆球形;叶片卵状椭圆形,长1.2～2 cm;侧副萼片较短,长约1 mm;中副萼片几乎与两侧萼片边缘合生。     

四川白珠树属（Gaultheria）一新变种

发表了白珠树属米易白珠一新变种,即大花白珠(Gaultheria miyienensis T. Z. Tsu var. macrantha J. L. Liu et Q. Luo)     

杓兰属(兰科)中一个国产种类的新等级

丽江杓兰大围山变种(Cypripedium lichiangense vat．daweishanense)被提升为种的等级：大围山杓兰(Cypripedium daweishanense)。此种的特征是：中萼片浅黄绿色,上面疏被栗色斑点;花瓣较短,近等长于或略长于唇瓣。而丽江杓兰(Cypripedium lichiangense)的中萼片为紫肝色;花瓣要长得多,大约为唇瓣长的2倍。它们均属于三棱组(Cypripedium sect．Trigonopedium)。该组共含11种,均为中国特有种。文中提供了一个该组的分种检索表。     

Notes on the Genus Prismatomeris Thw. (Rubiaceae) of China

In the classification of J. D. Hooker (1873) and of K. Schumann (1891), the genus Prismatomeris Thw. is included in the tribe Morindeae of Rubiaceae. In the modern classifications, e. g. Bremekamp (1966), however, the taxonomic position of the genus is still uncertain. The genus agrees with the tribe Morindeae in the downward radicle, valvate aestivation of the corolla lobes and presence of raphides, but it differs significantly from the latter in the free flowers, bilocular ovary and the peltate ovule attached to the upper half of septum. Therefore, it would be more suitable that the genus is separated from the tribe Morindeae Miq., and is raised to the rank of tribe, placed in the subfamily Rubioideae based on Bremekamp’s delimitation. In the present paper ten character pairs of the genus and the notes on their taxonomic value are presented and two following species are recognized: 1. P. tetrandra (Roxb.) K. Schum. is found in northern India. Its subspecies, which is distributed in Yunnan of China and in Thailand, was previously called P. tetrandra (Roxb.) K. Schumann, and is now revised as P. tetrandra (Roxb.) K. Schum. subsp. multiflora (Ridley) Y. Z. Ruan. 2. P. connata Y.Z. Ruan is described as a new species, that has been treated as P. tetrandra (Roxb.) K. Schum. by previous auth rs. It is native to the subtropic region of South China. Its tropical new subspecies, P. connata. Y. Z. Ruan subsp. hainanensis Y. Z. Ruan, is found on Hainan Island.     

中国兰科杓兰属一新种及一新变种

对云南东南部兰科新种麻栗坡杓兰(Cypripodium,malipoense)和新变种大围山杓兰(Cypripedium lichiangense var.datveishanense)作了描述。麻栗坡杓兰与文山杓兰(C.lentiginosum)相近,区别点在于新种叶淡黄色而有紫斑,色泽与花瓣及唇瓣极为相似;花瓣明显较短,仅稍长于唇瓣。新变种大围山杓兰与原变种的不同在于中萼片黄绿色,疏生紫红色斑点;花瓣仅稍长于唇瓣;唇瓣囊口有一黑色圈。     

杓兰属(兰科)中一个国产种类的新等级(英文)

丽江杓兰大围山变种(Cypripedium lichiangensem var.daweishanense)被提升为种的等级:大围山杓兰(Cypripedium daweishanense)。此种的特征是:中萼片浅黄绿色,上面疏被栗色斑点;花瓣较短,近等长于或略长于唇瓣。而丽江杓兰(Cypripedium lichiangense)的中萼片为紫肝色;花瓣要长得多,大约为唇瓣长的2倍。它们均属于三组(Cypripediumsect.Trigonopedium)。该组共含11种,均为中国特有种。文中提供了一个该组的分种检索表。     

中国假尾孢属的研究II．

本文报道中国假尾孢属的24个种,其中有2个新种:杨桐假尾孢(Pseudocercospora adinandrae Guo&Liu),钟萼假尾孢(Pseudocercospora bretschneiderae Liu&Guo),10个新组合,1个新名称:木豆假尾孢(Pseudoeercospora cajani-flavi Guo&Liu)和11个中国新记录。文中对2个新种提供了拉丁文简介、描述及图。所研究的标本全部保存在中国科学院微生物研究所真菌标本室(HMAS)。     

中国蝴蝶兰属(兰科)一新记录(英文)

报道了中国兰科植物一新记录—囊唇蝴蝶兰,并提供描述及照片。本种与麻栗坡蝴蝶兰非常相似,但它的花瓣较短而宽,花序轴呈"Z"型曲折,唇盘中央的胼胝体较小,可以与后者相区别。     

Two New Species of Sanicula L. (Umbelliferae) from China

Two new species of the genus Sanicula (Umbelliferae), S. pengshuiensis Sheh etZ.Y.Liu and S. oviformis X.T.Liu et Z.Y.Liu, are described from Sichuan Province, China.     

深圳香荚兰,首次发现于华南深圳的兰科新种

对兰科新种深圳香荚兰Vanilla shenzhenicaZ．J．Liu＆S．C．Chen作了描述与绘图。此新种为深圳发现的第一个兰科新种,与台湾香荚兰V。somai Hayata有亲缘关系。但是,本新种花序具4花,花较大,不完全开放;唇瓣不裂,紫红色,基部与蕊柱合生长度达3/4,刷状附属物位于唇盘的上部,甚易区别于台湾香荚兰。