云南轴脉蕨属植物的分类研究

基于大量植物标本的研究,结合孢粉学资料,对云南产轴脉蕨属植物进行了分类订正。认定云南有该属的8个种。Ctenitopsis acrocarpa,Ctenitopsis glabra,Ctenitopsis sagenioides var.glabrescens,Ctenitopsis hainanensis为新异名。     

云南产轴鳞蕨属（三叉蕨科）植物的分类研究

采用R．E．Holttum与P．J．Edwards1986年提出的轴鳞蕨属Dryopsis的概念,对云南产的轴鳞蕨属植物进行分类研究。云南产轴鳞蕨属植物共有8个种,其中,独立江轴鳞蕨Dryopsis dulongensis(S.K.Wu et X.Cheng）S．Y．Dong为新组合,Dryopsis fengiana(Ching)Holttum et Edwards为新异名。并列出了分种检索表、种的文献引证、标本引证和地理分布。     

A Taxonomic Study on the Genus Dryopteris Subgenus Erythrovariae (H. Ito) Fraser-Jenkins from Yunnan

In the present paper, the circum cription of the genus Dryopteris subgenus Erythrovariae (H. Ito) Fraser-Jenkins is revised, and a taxonomic study on the subgenus from Yunnan Province is carried out .The subgenus contains 2 sections, 12 species in Yunnan, of which D. yongdeensis W. M. Chu is a new species, D. championii, D. erythrosora, D. gymnosora, D. indusiata and D. integriloba are first recorded from Yunnan. The confusion between Dryopteris labordei and D. gymnosora is clarified, the former being treated as an independentspecies.     

湖北鳞毛蕨属植物的地理分布及区系特征

对湖北鳞毛蕨后植物的地理分布和区系特点进行了研究。鳞毛蕨后植物广布于世界各地,该后的分布和多样性中心位于中国西南部和东喜马拉雅山区;另一中心则位于日本,中国东南部和南部。鳞毛蕨后是一个自然的北温带分布属。中国有鳞毛蕨后植物134种(包括7变种),西南地区(云南、四川、贵州等)是国产鳞毛蕨属植物分布最集中的地区。区系分析表明：湖北鳞毛蕨后植物种类比较丰富,有36种,主要分布于鄂西北和鄂西南山区,是构成湖北森林植物区系林下草本植物的主要成分之一;地理成分比较复杂,种的分析显示出以中国一日本分布和中国持有分布为主的特点;与相邻省鳞毛蕨属植物区系的关系比较密切;区系过渡性明显。     

中国云南鳞毛蕨属(鳞毛蕨科)13种植物的染色体数目

报道了中国云南产鳞毛蕨科Dryopteridaceae鳞毛蕨属Dryopteris Adanson 13种植物的染色体数目。其中4个种：多雄拉鳞毛蕨D．alpestris（2n=82）、哈巴鳞毛蕨D．habaensis（2n=82）、脉纹鳞毛蕨D．lachoongensis（2n=82）和永自鳞毛蕨D．yungtzeensis（2n=82）的染色体数目为首次报道;无融合三倍体的川西鳞毛蕨Dryopteris rosthornii、无融合四倍体的大羽鳞毛蕨D．wallichiana以及无融合二倍体的栗柄鳞毛蕨D．yoroii为3个新发现的细胞类型。细胞学研究结果支持高山鳞毛蕨组sect．CaespitosaeS．G Lu应该为鳞毛蕨属内一个独立的组;中国喜马拉雅地区的鳞毛蕨属植物中存在着大量的无融合二倍体细胞类型。对蕨类植物中同一植株产生不同倍性孢子的现象进行了讨论。     

中国鳞毛蕨属泡鳞亚属的分类研究

鳞毛蕨属ＤｒｙｏｐｔｅｒｉｓＡｄａｎｓ．泡鳞亚属ＳｕｂｇｅｎｕｓＥｒｙｔｈｒｏｖａｒｉａｅ（Ｈ．Ｉｔｏ）Ｆｒａｓｅｒ－ＪｅｎｋｉｎｓｉｎＢｕｌ．Ｂｒ．Ｍｕｓ．Ｎａｔ．Ｈｉｓｔ．Ｂｏｔ．１４（３）：１９５．１９８６．Ｔｙｐｅ：Ｄｒｙｏｐｔｅｒｉｓｅｒｙ...     

云南鳞毛蕨属纤维鳞毛蕨组的分类研究

本文记载云南产鳞毛蕨届纤维鳞毛蕨组植物16种,其中6种为云南新分布,1种为新改级。     

Three New Cytotypes of Dryopteris chrysocoma Complex

Two new species and one nataral hydrid close to Dryopteris chrysocoma (Christ) C. Chr. are found by means of cytological study, which shows that D. chrysocoma circumscribed in the past is not a single diploid in its range, but consists of several cytotypes. D. para-chrysocoma is a sexual diploid with narrowly lanceolate laminae that are almost glandless. The scales on the rachis and pinna rachis are pale brown, longer in length (4-7 mm) and denser. Indusium lacks glands too. The ultimate segments are narrower and separated by arrow spaces. These characters distinguish it from D. chrysocoma. D. zinongii is a sexual tetraploid. It is recognised by its ovate laminae, sparse, small and dark brown scales on the rachis and pinna rachis (1-2mm in length), broad segments closely adjacent one another and membranous indusia. D. × daliensis is shown to be an apomictic triploid which has rather irregular meiosis. There are some free chromosomes at the first metaphase, some lagging chromosomes and bridges at the first anaphase and some micronuclei in young spores. Some unpaired univalents can even be seen at diplotene. Approximately 14 univalents, 14 bivalents and 27 trivalents were observed at late diakinesis. Although a large number of SMCs were counted, a definite chromosome number has so far proved impossible to be obtained. This is possibly caused by variable pairing of the three genomes and different trivalent numbers formed in each SMC. As a result, generally less than 64 abortive spores are formed in each sporangium, but the sporangium with 32 spores could also be found rarely. All these show that this hybrid may be derived from the cross between a diploid and a tetraploid which have homoeologous genomes. D. × daliensis is morphologically intermediate between D. zinongii and D. paraChrysocoma. in respect to characters such as ovate-lanceolate laminae, brown rachis scales with a dark central stripe, 2-3 mm in length, and abortive spores in unequal size and different shapes etc. In addition, they are often found growing together in Cang Shan, Yunnan. It is therefore reasonable to consider that the latter two are probably the parents of the former. These new cytotypes show the presence of Dryopteris chry-socoma complex which is generally characterized by shell-shaped indusia and glandular fronds. Accoding to the morphology, D. woodsiisora Hayata, D. tenuissima Tagawa, D. alpicola Ching et Z. R. Wang, D. fangii Ching, Fraser-Jenkins et Z. R. Wang and D. pseudochrysocoma Ching etc. should be the members of this complex. In order to clarify the relationships between all the members of D. chrysocoma complex, a great deal of further cytogenetic study, including artificial hybridization and analysis of meiosis in both wild and synthesized hybrids, is required. The author is grateful to Prof. R. C. Ching and Mr. C. R. Fraser-Jenkins of the British Museum (Natural History) for their kind and helpful suggestion, and thank Mr. Q. Xia and Mr. Y. L. Ma for their help in the field work.     

云南秋海棠属植物小志

描写了云南产秋海棠属６个新种１个新变种,它们是澜沧秋海棠、角果秋海棠、盈江秋海棠、粉叶秋海棠、蔓耗秋海棠、斜叶秋海棠、红毛香花秋海棠,补充描述了８个种及新命名１种,即四棱秋海棠、不显秋海棠、薄叶秋海棠、截裂秋海棠、长柔毛秋海棠、光叶秋海棠、变色秋海棠、假厚叶秋海棠、河口秋海棠。     

湖北鳞毛蕨属植物分布新记录

报道了湖北鳞毛蕨属8个新记录种,所引证的标本。全部收藏于中国科学院武汉植物研究所标本馆（HIB）。     

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.     

云南的珍珠茅属植物

对产于云南省的珍珠茅属植物进行了分类学修订。作者确认了产于云南的珍珠茅属植物12种,修正了5个种错误的学名,另有1个种被并入其它种为异名。在12种有2种为产于云南的新记录。文中包括云南珍珠茅属的分种检索表、各种的分类学处理及地理分布。     

A revision of Dryopteris sect. Diclisodon (Dryopteridaceae) based on morphological and molecular evidence with description of a new species

Dryopteris sect. Diclisodon is a small section of ferns with about 12 species mainly distributed in East Asia. Here, we carried out morphological and phylogenetic analyses of this section. A new species from southwest China, D. gaoligongensis, is described and illustrated. Dryopteris gaoligongensis resembles D. indonesiana and D. sparsa, but differs by having a creeping rhizome and large 4-pinnate fronds. We also show that D. glabrior Ching & Z.Y. Liu is a distinct species; however, because it is a later homonym of D. glabrior Copel., it should be renamed D. renchangiana. We conclude that a species previously known as D. nitidula, also an illegitimate homonym, should be recognized with a new name, D. sinonepalensis. We resolve the phylogenetic position of D. yoroii as sister to other sampled species of D. sect. Diclisodon. Our phylogenetic analyses confirm the distinctiveness of D. gaoligongensis, D. renchangiana, and D. sinonepalensis. A key to species of D. sect. Diclisodon in China is provided.     

云南豆芫菁属一新种(鞘翅目:芫菁科)

记述中国云南豆芫菁属1新种:隐纹豆芫菁Epicautacryptogramaca,sp.nov.。新种与陈氏豆芫菁E.cheniTan,1958在外形上相似,两者的主要区别是:前者唇基和上唇扁平并有刻点和毛,后者唇基前缘光滑厚实,上唇基部和端部光滑;前者触角被一色的黑短毛,后者基部3节则密生浅色毛;前者前足第1跗节正常,后者则变为宽卵形;前者的足完全黑色,后者的后足胫节棕至棕黄。模式标本保存在河北大学博物馆。     

云南省刺属一新种(螩目:异科)

记述云南省目异科刺属Cnipsomorpha 1新种:昆明刺Cnipsomorpha kunmingensis, sp. nov..模式标本分别存放于北京林业大学与西南林学院昆虫标本室.