中国钩瓣叶蜂属一新种及一新记录种(膜翅目:叶蜂科)

记述采自山东的中国钩瓣叶蜂属Macrophya Dahlbom 1新种：斑咐钩瓣叶蜂Macrophya maculotarsalina Wei et Liu.sp.nov.与Macrophya vacillans近似,但小盾片附片黑色,后足跗节大部白色,后足胫节具红斑,腹部第2背板两侧具侧白斑,第3、4背板无白斑,背地里单眼后区宽长比大于2,侧沟明显,锯腹片的锯刃强烈突出等,易与后者鉴别,斑股钩瓣叶蜂Macrophya femorata Marlatt,1898是中国新记录种,该种原记载分布于日本,新种的模式标本保存于中南林学院昆虫模式标本室。     

中国钩瓣叶蜂属(膜翅目,叶蜂科)一新种及coxalis种团中国种类检索表(英文)

记述中国钩瓣叶蜂属1新种:寡斑钩瓣叶蜂Macrophya oligomaculella Wei et Zhu,sp. nov..该种与M.paraminutifossa Wei et Nie,2003相似,但新种单眼后区宽1.3倍于长,中胸小盾片强烈隆起,明显高出背板顶面,具突出的顶点,附片具锐利中纵脊,后足胫节背侧白色条斑等长于胫节2/3长,前中足转节背侧具明显黑斑,腹部2～4背板侧白斑向尾部迅速变小,后胸后侧片附片较大且平坦,前翅臀室收缩中柄明显短于1r-m脉等与后者不同.简要讨论了axxalis种团的特征,编制了caxalis种团中国已知种类分种检索表.新种模式标本保存在中南林业科技大学昆虫模式标本室.     

中国钩瓣叶蜂属Macrophya sanguinolenta种团两新种(膜翅目,叶蜂科)

记述中国钩瓣叶蜂属Macrophya DahIbom红足种团Macrophya sanguinoknta group 2新种,花跗钩瓣叶蜂Macrophya coloritarsalina Wei et Li,sp.nov.和长柄钩瓣叶蜂Macrophya longipetiolata Wei et Zhong,sp.nov..前者属于红足种团的中环白亚种团M.depressina subgroup,后者属于红足种团的红股红胫亚种团M.sanguinolenta subgroup.新种模式标本保存于中南林业科技大学昆虫模式标本室.     

中国钩瓣叶蜂属红足种团MACROPHYA KOREANA亚种团两新种(膜翅目,叶蜂科)

讨论了钩瓣叶蜂属红足种团的亚种团分类,简要分析了欧亚大陆和日本分布的钩瓣叶蜂属红足种团种类状况.记述了采自中国的钩瓣叶蜂属红足种团2新种:大别山钩瓣叶蜂Macrophya dabieshanica Wei et Xu,sp.nov.和刘氏钩瓣叶蜂Macrophya liui Wei et Li,sp.nov..新种均隶属于钩瓣叶蜂属红足种团的M.koreana亚种团;编制了红足种团M.loreana亚种团已知种类检索表.建立狭片种团M.montana group新群,包括5个欧洲种类:M.diaphenia Benson 1968,M.postica(Brulle,1832),M.rufipes(L.,1758),M.superba Tischbein,1852和M.diversipes(Schrank,1782).     

中国叶蜂属(膜翅目,叶蜂科)二新种

记述了中国叶蜂属Tenthredo L.两新种:衡山短角叶蜂Tenthredo hengshana Wei et Yan,sp.nov.和红盾槌腹叶蜂Tenthredo pseudocylindrica Wei et He,sp.nov.。新种模式标本保存在中南林业科技大学昆虫模式标本室。1衡山短角叶蜂,新种Tenthredo hengshana Wei et Yan,sp.nov.鉴别特征本种与贵州分布的宽带短角叶蜂Tenthredo latistriatena Wei,2005最近似,但本种体型稍大(体长13mm),背面观后头两侧膨大,前翅烟斑内侧仅伸抵1M室基部,后眶下半部、前胸背板后缘和外侧缘、小盾片前部3/5、附片、后胸后背板大部、中胸前侧片后部中央向前弯曲的条斑、中胸后侧片后缘宽边、腹部第1背板中部后缘、第3~4节腹板全部、5~7腹板后缘、各足基节大部、转节全部、股胫节前侧和腹侧黄白色,锯腹片锯刃具1个内侧亚基齿,与后者不同(宽带短角叶蜂体长11mm,背面观后头两侧平行,前翅烟斑内侧伸抵前翅基部,后眶下半部、前胸背板后缘和外侧缘、小盾片全部、附片、后胸后背板大部、中胸侧板全部、腹部第1背板全部、第3~4节腹板大部、5~7腹板全部、各足基节大部、转节、后足股胫节全部黑色,锯腹片锯刃具2个内侧亚基齿)。正模♀,湖南衡山,海拔900~1100m,2004-05-11,刘卫星。副模1♀,湖南衡山,900~1100m,2004-05-11,刘卫星。词源:本种根据模式标本的采集地命名。2红盾槌腹叶蜂,新种Tenthredo pseudocylindrica Wei et He,sp.nov.鉴别特征本种与T.cylindrica Rohwer很近似,但额区和单眼后区棕色,无显著黑斑;中胸背板前叶和小盾片棕色,无黄斑;中胸腹板黄白色,腹部第3背板黑褐色,后足胫节黑褐色,腹部第2、3节显著窄于第1、4节等,可与之鉴别;T.cylindrica Rohwer的头胸部具显著黑斑,中胸背板前叶两侧和小盾片白色,中胸腹板黑色,后足胫节黄褐色,具细窄黑色条斑,背面观腹部第1~3节几乎等宽。正模♀,湖南衡山,海拔600~700mm,2004-05-11,刘卫星;副模:1♀,1♂,湖南衡山,海拔600~700mm,刘卫星;1♀,广西花坪天平山,1963-06-05,杨集昆。词源:新种的种加词由pseudo-(假的)和cylindrica两部分组成,指新种与T.cylindrica外观近似,但并非同种。     

中国钩瓣叶蜂属黄斑钩瓣叶蜂种团一新种（膜翅目：叶蜂科）

记述中国西藏钩瓣叶蜂属黄斑钩瓣叶蜂种团Macrophya flavomaculata group 1新种:横斑钩瓣叶蜂M.transmaculata Li,LiuWei sp.nov.。     

中国钩瓣叶蜂属三新种(膜翅目,叶蜂科)

记述采自中国甘肃的钩瓣叶蜂属3新种,肿跗钩瓣叶蜂Macrophya incrassitarsalia Wei et Wu,sp.nov.,黑体钩瓣叶蜂Macrophya melanosomata Wei et Xin,sp.nov.和白转钩瓣叶蜂Macrophya leucotrochanterata Wei et Li,sp.nov..新种模式标本保存于中南林业科技大学昆虫模式标本室.     

中国钩瓣叶蜂属(膜翅目,叶蜂科)Macrophya imitator种团两新种

记述采自中国四川和吉林钩瓣叶蜂属Macrophya imitator种团2新种:康定钩瓣叶蜂Macrophya kangdingensis Wei et Li,sp.nov.和卜氏钩瓣叶蜂Macrophya bui Wei et Li,sp.nov..新种模式标本保存于中南林业科技大学昆虫模式标本室.     

中国钩瓣叶蜂属两新种及M.annulitibia种团中国种类检索表(膜翅目:叶蜂科)（英文）

记述中国钩瓣叶蜂属Macrophya Dahlbom斑胫钩瓣叶蜂种团Macrophya annulitibia group 2新种:盛氏钩瓣叶蜂Macrophya shengi Li&Chu sp.nov.和西南钩瓣叶蜂Macrophya xinan Li&Liu sp.nov.;简要讨论了M.annulitibia group的主要鉴别特征和种类分布概况,编制了M.annulitibia group中国已知种类分种检索表。新种模式标本保存于中南林业科技大学昆虫模式标本室。     

中国钩瓣叶蜂属两新种(膜翅目,叶蜂科)

记述采自中国陕甘南部的钩瓣叶蜂属2新种,杨氏钩瓣叶蜂Macrophya yangi Wei et Zhu,sp.nov.和晕翅钩瓣叶蜂Macrophya infuscipennis Wei et Li,sp.nov.。新种模式标本保存于中南林业科技大学昆虫模式标本室。     

Prosthecium species with Stegonsporium anamorphs on Acer

Data from microscopic morphology, single-spore cultures, and DNA analyses of teleomorphs and anamorphs support the recognition of five species of Prosthecium with Stegonsporium anamorphs on Acer: P. acerinum sp. nov., the teleomorph of S. acerinum; P. acerophilum comb. nov., formerly known as Dictyoporthe acerophila; P. galeatum comb. nov., originally described as Massaria galeata; P. opalus sp. nov.; and P. pyriforme sp. nov., the teleomorph of S. pyriforme s. str. The morphology of both type specimens and freshly collected material was investigated. The teleomorphs have brown ellipsoidal ascospores with five distosepta and often a longitudinal distoseptum. The anamorphs of all species described here belong to Stegonsporium; their connection to the Prosthecium teleomorphs was demonstrated by morphology and DNA sequences of single spore cultures derived from both ascospores and conidia. The anamorphs and teleomorphs of all five Prosthecium species are described and illustrated by LM images, and a key to these species is provided. As perceived from this work, S. pyriforme is restricted to Europe and does not occur in North America, whereas S. acerinum is restricted to North America, not found in Europe. The host associations given in the literature are revised and evidence is provided that only A. opalus, A. pseudoplatanus, and A. saccharum are confirmed hosts of Prosthecium with Stegonsporium anamorphs. Molecular phylogenetic analyses of tef1, ITS rDNA, and partial nuLSU rDNA sequences confirm that the species with Stegonsporium anamorphs are closely related to P. ellipsosporum, the generic type species. Stilbospora macrosperma is confirmed as the anamorph of P. ellipsosporum by DNA data of single spore isolates obtained from both ascospores and conidia.     

Revision of some Thecaphora species (Ustilaginomycotina) on Caryophyllaceae

Specimens of Thecaphora saponariae s. lat. from several caryophyllacean host plants belonging to the genera Cerastium, Dianthus, Petrorhagia, Saponaria, Silene, and Stellaria were studied by means of both LM, SEM, and molecular phylogenetic analyses using ITS and LSU rDNA sequences. The data show that T. saponariae s. lat. is not uniform but represents several taxa. Molecular phylogenetic analyses, correlated with morphology of the sori, spore balls, and spores, permitted the recognition of five species. Two new species, Thecaphora italica and T. cerastii are described, and two new combinations, T. alsinearum and T. melandrii are proposed. The anamorph of Thecaphora saponariae is reported for the first time. A lectotype is designated for Sorosporium silenes-inflatae. Evolutionary aspects are discussed.     

Furanoeremophilanes from Gynoxys species

Five new furanoeremophilanes were isolated from three Gynoxys species. The structures of three 3,6β-diacyloxyfuranoeremophilanes previously isolated from G. sancto-antonii have to be revised to the corresponding 1β,6β derivatives.     

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.     

Biotransformations by Botrytis species

Biotransformations by Botrytis sp. are reviewed. Various substrates and the Botrytis species used for the transformations are included in this review of the literature for the period 1961–1999.     

32种杜鹃花属植物亚属间杂交的可育性研究

为探索杜鹃花属植物亚属间杂交的可育性规律,该文对常绿杜鹃亚属(subgen. Hymenanthes)、杜鹃亚属(subgen. Rhododendron)及马银花亚属(subgen. Azaleastrum)、映山红亚属(subgen. Tsutsusi)和羊踯躅亚属(subgen. Pentanthera)的亚属间杂交进行了研究,共涉及杜鹃花属植物5亚属15亚组32种,杂交组合118个。结果表明:(1)杜鹃花属植物的亚属间杂交存在明显的生殖障碍,其可育性水平与亚属及其类群组合有关,高、中、低与不育比例为2∶16∶8∶92,可育比例仅20.0%,杜鹃亚属与马银花亚属等4个亚属级组合杂交未显现可育性。(2)亲本杂交组合方式对亚属间杂交有不同程度的影响,一些类群组合有明显的向性。以杜鹃亚属做母本与常绿杜鹃亚属的云锦杜鹃亚组杂交的可育组合比高于反交,且在有关大王杜鹃、粘毛杜鹃、露珠杜鹃和马缨花的杂交中也是如此,但与银叶杜鹃亚组杂交正好相反;另外,12对单向可育组合,分布于常绿杜鹃亚属与杜鹃亚属等4类亚属级杂交组合中。(3)杜鹃花属的亚属间杂交不亲和与败育现象明显,不可育组合百分率占80%,不能坐果是败育的主要表征,所有可育组合的绿苗率比值和单位种子数比值无一例达到相应母本的自然授粉水平。(4)双亲系统分类上的关系对亚属间可交配性具有重要影响并与可育程度一致,染色体倍性也有一定的作用。(5)有关研究为探索和认识杜鹃花属植物亚属间进化遗传联系提供了新的证据和思考,银叶杜鹃亚组可能是解释常绿杜鹃亚属与杜鹃亚属进化遗传联系的重要类群,杜鹃亚属的多鳞杜鹃可能与常绿杜鹃亚属具有广泛的血亲关系,其中多鳞杜鹃与岷江杜鹃彼此为生态相邻种并有可能在长期的演化过程中有遗传渗透,百合花杜鹃和毛肋杜鹃分别与映山红亚属、腺果杜鹃与马银花亚属,越峰杜鹃和繁花杜鹃分别与映山红亚属,大白杜鹃与羊踯躅亚属间的联系均需要深入研究。     

New species of Phaeoramularia, Pseudocercospora and Stenella from Western Ghats of India

Four new species of the hyphomycete genera Phaeoramularia viz. Ph. caesalpinae, Pseudocercospora viz., Ps. tiliacearum, Stenella, viz. S. argyreiae and S. grewiae occurring on Caesalpinia bonducella Fleming (Caesalpiniaceae), Grewia sp. (Tiliaceae), Argyrea sp. Lour (Convolvulaceae) and Grewia sp. L. (Tiliaceae), respectively are described and illustrated here. All these fungi were collected from Western Ghats of India.     

Foliage terpenoids of Chinese Cupressus species

Foliage of trees from five Chinese Cupressus species was analysed for volatile monoterpenoids, sesquiterpenoids and diterpenoids. Multivariate analysis of the terpenoid data indicated that C. gigantea is most distinct, but otherwise no obvious chemotaxonomic groupings were evident. Comparison of the Cupressus analytical data with that of specimens of five Chamaecyparis species indicated that Cupressus funebris should not be reclassified into Chamaecyparis.     

Re-consideration of Peronospora farinosa infecting Spinacia oleracea as distinct species, Peronospora effusa

Downy mildew is probably the most widespread and potentially destructive global disease of spinach (Spinacia oleracea). The causal agent of downy mildew disease on various plants of Chenopodiaceae, including spinach, is regarded as a single species, Peronospora farinosa. In the present study, the ITS rDNA sequence and morphological data demonstrated that P. farinosa from S. oleracea is distinct from downy mildew of other chenopodiaceous hosts. Fifty-eight spinach specimens were collected or loaned from 17 countries of Asia, Europe, Oceania, North and South America, which all formed a distinct monophyletic group. No intercontinental genetic variation of the ITS rDNA within Peronospora accessions causing spinach downy mildew disease was found. Phylogenetic trees supported recognition of Peronospora from spinach as a separate species. Microscopic examination also revealed morphological differences between Peronospora specimens from Spinacia and P. farinosa s. lat. specimens from Atriplex, Bassia, Beta, and Chenopodium. Consequently, the name Peronospora effusa should be reinstated for the downy mildew fungus found on spinach. Here, a specimen of the original collections of Peronospora effusa is designated as lectotype.     

Flavonoid variations in Avena species

Twenty-five Avena species were investigated for their flavonoids. The flavonoids identified were vitexin, isovitexin, vitexin 2″-rhamnoside, isovitexin 2″-arabinoside, isoswertisin 2″-rhamnoside, tricin 5-glucoside, tricin 7-glucoside and tricin 7-diglucoside. Chemosystematic relationships are discussed.