中国冷水花属研究随记

描述了荨麻科冷水花属二新种,做出疣果冷水花二亚种学名的二新组合,给出师宗冷水花和总状冷水花的补充形态描述,并提供师宗冷水花、隆脉冷水花、总状冷水花和卵形盾叶冷水花的分布新记录。     

越南冷水花属(荨麻科)一新记录种

报道了越南荨麻科(Urticaceae)冷水花属(Pilea Lindl.)一新记录种——基心叶冷水花(P.basicordata W.T.Wang ex C.J.Chen)。该种在越南Pu Hu自然保护区发现,与产自越南北部的P.balansae Gagnep.相似,主要区别在于其雄花序聚伞圆锥状,托叶大,叶先端渐尖或短尾状渐尖。     

中国12省荨麻科植物分布新记录

报道荨麻科16种植物在中国12个省(区)分布的新记录,其中河南省和福建省分布新记录种有粗齿冷水花(Pilea sinofasciata),陕西省和安徽省分布新记录种有假楼梯草(Lecanthus peduncularis),甘肃省分布新记录种有糯米团(Gonostegia hirta)和假楼梯草,青海省分布新记录种有亚高山冷水花(Pilea racemosa),广东省分布新记录种有隆脉冷水花(P.lomatogramma),海南省分布新记录种有锐齿楼梯草(Elatostema cyrtandrifolium),广西壮族自治区分布新记录种有西畴楼梯草(E.xichouense),贵州省分布新记录种有隐脉楼梯草(E.obscurinerve)和红花冷水花(Pilea rubriflora),云南省分布新记录的种有星序楼梯草(Elatostema asterocephalum)、深绿楼梯草(E.at-roviride)、褐脉楼梯草(E.brunneinerve)、多枝楼梯草(E.ramosum)、翅茎赤车(Pellionia caulialata)和光果赤车(P.leiocarpa),西藏自治区分布新记录种有念珠冷水花(Pilea monilifera).     

西藏荨麻科二新种

描述了自西藏发现的荨麻科二新种:拉格艾麻(Laportea lageensis)和拉格冷水花(Pilea lageensis),并给出了与其近缘种的区别特征。     

白锈菌一新种

本文报道了在四川采集的寄生于荨麻科植物粗齿冷水花(Pilea fasciata Franch)叶片上白锈菌的一个新种,命名为冷水花白锈(Albugo pileae rao et Y. Qin sp. nov.),并附拉丁文和汉文描述及形态图,还讨论了新种与近似种之间的区别。     

防治蛇伤药物矮冷水花制剂的研究

寻麻科植物矮冷水花系我区挖掘的防治蛇伤民间草药.取其干全草制成酒剂和散剂。适合于多种毒蛇咬伤的治疗.经试验研究,制定了酒剂和散剂的制备工艺高质量标准。矮冷水花制剂疗效确切,副作用小,工艺简便,是个适合于广大农村推广应用的防治蛇伤草药制剂。     

中国粳稻地方品种孕穗期耐冷性评价及聚类分析

用原产于中国18个省的329份粳稻地方品种为材料,分析了自然低温和冷水胁迫下不同省份粳稻地方品种孕穗期耐冷性及主要农艺性状表型差异和聚类特点。结果表明,在自然低温和冷水胁迫下各省份粳稻地方品种的孕穗期耐冷性状及主要农艺性状有明显的差异。在自然低温和冷水胁迫下,天津、四川和台湾品种的结实率及冷水反应指数均较高,表现较强的孕穗期耐冷性和迟钝的冷水反应。云南品种在自然低温下表现为较强的孕穗期耐冷性（结实率）,而在冷水胁迫下播种至抽穗天数和株高的冷水反应指数较高,表现为迟钝的冷水反应。从总体趋势上看,自然低温和冷水胁迫下,除个别省份外,纬度相对较高的北方省份品种的孕穗期耐冷性（结实率）强于纬度相对较低的南方省份品种。此外,在自然低温和冷水胁迫下,各省粳稻地方品种的聚类结果总体上与各省品种的地理位置及其耐冷性有密切的联系,而在冷水胁迫下品种的聚类结果与品种地理位置的关系比自然低温下更为密切。     

分蘖期冷水胁迫下施氮量对寒地粳稻氮代谢和籽粒蛋白质含量的影响

以寒地粳稻东农428、龙稻7和松粳10为试验材料,研究分蘖期冷水胁迫下不同施氮量处理对功能叶片氮代谢关键酶活性、籽粒蛋白质含量以及产量的影响,并探讨功能叶片氮代谢关键酶活性与籽粒蛋白质含量以及产量的关系。研究结果表明,分蘖期冷水胁迫使NR,GS活性及籽粒蛋白质含量升高,GOGAT和GDH活性下降。分蘖期冷水胁迫下,增加施氮量使各品种功能叶酶活性及籽粒蛋白质含量均缓慢升高,其中NR、GS和GOGAT活性在N150处理下最高,GDH活性和籽粒蛋白质含量在N175处理下最高,可知,高施氮量不利于寒地粳稻抗冷。不同品种在冷水胁迫下酶活性表现不一,其中耐冷型品种东农428在各处理下氮代谢关键酶保持较高生理活性,龙稻7次之,松粳10最弱。分蘖期冷水胁迫下,纯氮施用量为100 kg/hm2,其产量表现最佳,3个品种表现一致。     

西藏荨麻科二新种

描述了自西藏发现的荨麻科二新种,亚东冷水花和定结楼梯草,并分别给出二种与近缘种的区别特征。     

中国荨麻科楼梯草属分类

楼梯草属Elatostema Forst.属于荨麻科冷水花族Trib.Procideae,与该族的赤车属Pellionia Gaud.     

中国西南地区杨属的分类学研究(Ⅰ)

本文包括:康定杨的补充记载,4个新组合,16个新异名,2个天然杂种,2个分布新记录,2个新变种。     

中国假尾孢属的研究VI.

本文报道中国假尾孢属的16个种,其中有3个新种:藤山柳假尾孢(Pseudocercospora clematoclethrae),仙茅假尾孢(P. curculiginis,),豆付柴假尾孢(P. premnicola), 8个新组合:金粟兰假尾孢(P. chloranthe), 榅桲假尾孢(P. cydoniae),福岗假尾孢(P. fukuokaensis),土连翘假尾孢(P. hymenodictyonis),南五味子假尾孢(P. kadsurae), 野岛假尾孢(P. nojimae).绣线菊假尾孢(P. spiraeicola),球形假尾孢(P. sphaeriiformis)和3个中国新纪录。文中对新种进行了描述并绘图。研究的标本保存在中国科学院微生物研究所真菌标本室(HMAS)。     

A revision of the Paeonia suffruticosa complex (Paeoniaceae)

The taxonomical concept of the Paeonia suffruticosa complex i.e. Sect. Moutan Subsect. Vaginatae, has changed greatly since 1990. Six species and four subspecies have been described as new and two subspecies raised to specific level. Five species and two subspecies are recognized in the present revision, viz. P. suffruticosa subsp. suffruticosa and subsp. yinpingmudan, P. jishanensis, P. qiui, P. ostii, P. rockii subsp. rockii and subsp. taibaishanica. P. yananensis, P. ridleyi, P. spontanea, P. moutan subsp. atava, P. suffruticosa subsp. atava, P. rockii subsp. linyanshanii and P. ostii var. lishizhenii are treated as synonyms. P. papaveracea and P. baokangensis are proposed to be interspecific hybrids. A key to the recognized species and subspecies is provided. Biological features of the species are described and their distributions are mapped. The relationships between species are inferred and the origins of commonly cultivated tree peonies ( P. suffruticosa and P. ostii ) are discussed.     

拟盘多毛孢属真菌的新种*

报导拟盘多毛孢属真菌的8个新种。这8个新种是:近似状拟盘多毛孢Pestalotiopsis affinis、山姜拟盘多毛孢P. alpiniae、见血封喉拟盘多毛孢P. antiaris、五桠果拟盘多毛孢P. dilleniae、广西拟盘多毛孢P. kuwangsiensis、莲拟盘多毛孢P. nelumbinis、木荷拟盘多毛孢P. schimae、和神秘果拟盘多毛孢P. synsepali。新种的模式标本保存在广西大学植保系标本室。     

中国绿刺蛾属的新种和新纪录种(鳞翅目,刺蛾科)

记述中国绿刺蛾属Parasa Moore 2新种:镇雄绿刺蛾P.zhenxiongica sp.nov.和西藏绿刺蛾P.xizangensis sp.nov.及3中国新纪录种:同宗绿刺蛾P.gentiles(Snellen)、缅媚绿刺蛾P.kalawensis Orhant和榴绿刺蛾P.punica (Herrich-Schaffer).另外,对中国绿刺蛾P.sinica Moore、双齿绿刺蛾P.hilarata(Staudinger)和青绿刺蛾P.hilarula (Staudinger)的混淆与误定进行了更正.提供了它们的成虫彩色照片和新种的外生殖器特征图.模式标本保存在中国科学院动物研究所.     

Vaxiations in floral development in Peperomia (Piperaceae) and their taxonomic implications

The floral development of two species of Peperomia, Peperomia reflexa A. Dietr. (P. tetraphylla (G. Font.) Hook. et Am.) and P. serpens C. DC., is described. The initiation order is in an acropetal succession and resembles that in P. metallica L. Lind. et Rod., P.pellucida (L.) Kunth and P. rubella Hook., although many more bracts are produced in these two species than in P. metallica. The arrangement of bracts and floral primordia is orthostichous in P. reflexa, but parastichous in P. serpens. The floral apices in P. reflexa are transversely ellipsoidal protuberances at first, then become saddle-shaped when they begin to produce simultaneously staminal primordia. They are similar to those of P. metallica, P. pellucida and P. rubella. However, their initiation of floral primordia is much delayed compared to the size of the bracts. The triangular or transvcrsely cuneate ridges then become L-shaped in P. serpens, this shape is related to the parastichous phyllotaxy of the bracts. So, the staminal primordia are successively initiated and develop at different rates. Therefore, they are not always the same size. The staminal primordia are initiated above the level of the floral apex in P. reflexa and P. serpens but below it in P. metallica, P. pellucida and P. rubella. The abaxial position of the carpel primordium on the apex and the closure of the ovary in P. reflexa and P. serpens are also similar to those in P. metallica, P. pellucida and P. rubella. The shape of the upper part of the ovary, stigmas and indumentum vary between the species. In P. reflexa, the upper part of the ovary becomes ovoid and acclivous, or leaning acropetally, to the axis of inflorescence. In P. serpens, it becomes helmet-shaped. The flowers of P.serpens are surrounded by the outgrowth of the axis of the inflorescence. The ontogenetical features of ovaries in Peperomia indicate that the fruit characters are useful in the taxonomy of the genus.     

大亚湾水域原甲藻调查与鉴定

对1998年至2000年在广东省大亚湾海域所采集的样品进行了观察和分析。发现有8种原甲藻(Prorocentrum);反曲原甲藻（Prorocentrum sigmoides),海洋原甲藻（P.micans)。三角棘原甲藻（P.triestinum)。具齿原甲藻（P.mexicanum)和原甲藻未知种（P.sp)。对它们的形态特征和生态分布进行了描述。     

中国主要五针松群落学特征及其生物量的研究

本文根据现有的文献资料,系统地分析了中国五针松的分布．群落学特征,按不同分布区、不同群落类型探讨了中国五针松的群落生物量和年净生产量及在群落的不同层次上的分布．比较分析了不同分布区五针松的年干物质累积速度（ＮＰ／Ｂ）．结果表明：１１５─１３５ａ生的阔叶红松林群落生物量在９７．０９─１２０．５１ｔ／ｈｍ￣２之间,年净生产量在８．６９８─１０．３４ｔ／ｈｍ￣２．ａ之间,年净生产量长白山山脉沙松、鹅耳枥红松林＞小兴安岭南坡枫桦、水曲柳红松林＞小兴安岭北坡云杉、冷杉红松林;３０─３６ａ生的华山松林群落生物量在７８．７５─９４．７３ｔ／ｈｍ￣２之间,年净生产量在４．９９３─５．５３７ｔ／ｈｍ￣２．ａ之间,年净生产量贵州山地常绿阔叶华山松林＞秦岭中山地阔叶华山松林＞甘肃小陇山针阔叶华山松林．ＮＰ／Ｂ值：长白山山脉的阔叶红松林＞小兴安岭山脉的阔叶红松林;秦岭中山地阔叶华山松林＞甘肃小陇山针阔华山松林＞贵州中山地常绿阔叶华山松林．     

Notes on some species of Parasmittina Osburn, 1952 (Bryozoa: Cheilostomatida)

Nine species of the cheilostomate bryozoan genus Parasmittina Osburn, 1952, are described. Neotype specimens are selected for P. parsevalii (Audouin) and P. raigii (Audouin). P. hastingsae Soule and Soule, P. agathae sp. nov., P. parsloeparsloei sp. nov., P. pectinata sp. nov. and P. solenosmilioides sp. nov. are described from Australian localities. P. fistulata (Harmer) is redescribed and P. decorata Soule and Soule is placed in the synonymy of P. delicatula (Busk).