中国平腹蛛科两新属（蛛形纲：蜘蛛目）

本文记述了平腹蛛科两个新属及隶属于其中的３新种：异狂蛛属,新属Ａｌｌｏｚｅｌｏｔｅｓｇｅｎ．ｎｏｖ．,庐山异狂蛛,新种Ａ．ｌｕｓｈａｎｓｐ．ｎｏｖ．,滇池异狂蛛,新种Ａ．ＤＩＡＮＣＨＩＳＯ．ＮＯＶ．,     

Systematics and phylogeny of the caryophyllidia-bearing dorids (Mollusca, Nudibranchia), with descriptions of a new genus and four new species from Indo-Pacific deep waters

The phylogenetic relationships of the caryophyllidia-bearing dorids are studied, based on the examination of the type species of all the genera previously described. The phylogenetic hypothesis supports that the caryophyllidia-bearing dorids are a monophyletic group and the sister group of the clade formed by Astemnotus Ehrenberg, 1831 and Halgerda Bergh, 1880. Several genera previously considered as valid or regarded as uncertain are here synonymized: Peronodoris Bergh, 1904, Trippa Bergh, 1877, Phlegmodoris Bergh, 1878, Petelodoris Bergh, 1881, Kentrodoris Bergh, 1876, Audura Bergh, 1878, Centrodoris P. Fischer, 1883, Anisodoris Bergh, 1898, Awuka Er. Marcus, 1955, Rhabdochiia P. Fischer, 1883, Boreodoris Odhner, 1939, Dictyodoris Bergh, 1880, Gravieria Vayssiere, 1912, Aporodoris Ihering, 1886. The following genera are regarded as valid: Astemnotus, Atagema J.E. Gray, 1850, Jorunna Bergh, 1876, Platydoris Bergh, 1877, Diaulula Bergh, 1878, Rostanga Bergh, 1879, Halgerda Bergh, 1880, Baptodoris Bergh, 1884, Gargamella Bergh, 1894, Alloiodoris Bergh, 1904, Sclerodoris Eliot, 1904, Taringa Er. Marcus, 1955, Thorybopus Bouchet, 1977. The new genus Nophodoris is described based on two new species from New Caledonia deep waters. Two additional new species from New Caledonia belonging to the genera Atagema and Gargamella are also described. Nomenclatural and taxonomic problems are discussed, and several type species, neotypes and lectotypes are selected.     

中国蝇科二新属二新种（双翅目：蝇科）

整理新疆地区蝇科标本中,发现二新属和二新种,其中花秽蝇属,新属Ａｎｔｈｏｃｏｅｎｓｉａ ｇｅｎ．ｎｏｖ．隶于秽蝇亚科Ｃｏｅｎｓｏｉｉｎａｅ,叉棘蝇属,新属Ｃｒｕｓｉａｅｌｌａ ｇｅｎ．ｎｏｖ．隶于棘蝇亚科Ｐｈａｏｎｉｉｎａｅ。新种模式标本保存于沈阳师范学院生物系。     

甘肃省中国种子植物特有属物种多样性保护优先地区分析

以甘肃省境内11个主要天然林区作为基本的地理单元,选择天然分布在各林区的中国种子植物特有属的物种丰富度、相对特有性和等级性作为评价指标,对各林区中国种子植物特有属物种多样性进行综合评价,确定出甘肃省中国种子植物特有属物种多样性保护的关键林区,并且运用互补性原理设计出最低保护区域组合及其优先序。分析得出关键保护林区为白龙江下游（白水江）林区、白龙江中上游林区和小陇山林区;最低保护区域组合按其优先序依次为白龙江下游（白水江）林区、白龙江中上游林区、东祁连山林区、小陇山林区和太子山,大夏河林区。     

中国西北荒漠区植物特有属研究

确认了中国西北荒漠区有4个植物特有属--连蕊芥属、四合木属、百花蒿属、河西菊属,阿拉善是其分布中心。     

大巴山自然保护区种子植物中国特有属的初步研究

大巴山自然保护区分布中国特有属45属,占本区的种子植物总属的4.98%。本区分布的中国种子植物特有属中均为少种属或单种属,单种属22属,少种属23属,分别占本区中国特有属总属数的48.9% 和51.1%。木本属22属,草本属23属,分别占本区中国特有属总属数的48.9% 和51.1%。本区的中国特有属植物主要分布在低山和中山,其中分布在低山的有6属,占总属数的13.3%, 分布在中山的有39属,占总属数的86.7%。其特点表现为众多的古特有属、较明显的过渡性质和丰富的珍稀物种,与四川和湖北的共有成分最多,是中国特有属川东鄂西特有现象中心的重要组成部分。     

武陵山地区种子植物区系中的中国特有属研究

武陵山地区含有中国种子植物特有属72个,占该区种子植物总属数的7．16％,占全国同类属数的28．69％,占华中同类属数的77．42％。其基本特征为：(1)古老与孑遗的木本植物众多,并存在一定相对年轻的成分;(2)地理成分多样,具明显的亚热带性质,表现出四方汇集和东、西、南、北的过渡性质;(3)水平分布上呈现南、北两个分布中心,垂直分布上以1000m以下的中、低海拔为主;(4)武陵山地区植物区系与神农架、秦岭、湘黔桂交界地区的关系比较密切,而与南岭、武夷山、滇黔桂地区的关系比较疏远。根据武陵山地区中国种子植物特有属的数量、与鄂西～川东特有现象中心(或者三峡中心)所含属的一致性以及地理间的密切联系,可以认为该区是鄂西～川东中心(或者三峡中心)的重要组成部分甚至是核心地带,在华中植物区系中发挥着举足轻重的作用。     

中国大陆的梅衣科Ⅵ.梅衣类地衣中的八个中国新记录种

迄今为止,从广义梅衣属分出属名多达40个左右,称之为梅衣类属群（parmelioid genera）。形态学和/或分子生物学研究已将其中某些属合并。目前使用的属名约为33个,它们包括的地衣称之为梅衣类地衣（parmelioid lichens）,有1,500余种。中国有梅衣类地衣20个属近200种。报道其中的8个中国新记录种。它们是：平坦北极梅Arctoparmelia separata,美洲条衣Everniastrum lipidiferum,墨西哥条衣Everniastrum mexicanum,裂芽皱梅Flavoparmelia baltimorensis,东亚黄髓梅Myelochroa hayachinensis,宽蛇纹梅衣Parmelia marmorophylla,小裂片梅衣Parmelia pseudolaevior,疱突大叶梅Parmotrema pustulatum。     

中国东北样带树种（属）的空间特性及变化

对中国东北样带上１６个树种（属）在１９８６年与１９９４年景观水平的地理分布、出现频率、优势度及空间相关性等空间特性的分析得出,红松（Ｐｉｎｕｓ ｋｏｒａｉｅｎｓｉｓ Ｓｌｅｂ．ｅｔ Ｚｕｃｃ．）与花曲柳（Ｆｒａｘｉｎｕｓ ｒｈｙｎｃｈｏｐｈｙｌｌａ Ｈｅｍｓｌ．）分别是向西和向东扩展最快;种群的分布边界形态与该边界的移动有密切关系;红松、山杨（Ｐｏｐｕｌｕｓ ｄａｖｉｄｉａｎａ Ｄｏｄｅ．）、黄檗     

Characteristic Change of Several Forest Landscapes Between 1896 and 1986 in Heilongjiang Province

The 16 tree species on Northeast China Transect (NECT) were analyzed from the change of geographical distribution, frequency and dominance pattern and the spatial correlation at landscape scale in 1986 and 1994. Pinus koraiensis Sieb. et Zucc. and Fraxinus rhynchophylla Hemsl. had spread rapidly towards west and east, respectively. The frontier form of species had close relation with its movement. The patch size of Pinus koraiensis, Populus davidiana Dode., Phellodendron amurense Rupr., Juglans mandshurica Maxim., Fraxinus mandshurica Rupr., Betula dahurica Pall., Picea koraiensis Nakai, Abies nephrolepis Maxim. and Larix olgeusis var. koreana Nakai decreased, however, Quercus mongolica Fisch., Betula costata Trautv., Acer mono Maxim., Tilia spp., Ulmus spp., Betula platyphylla Suk. and Fraxinus rhynchophylla increased. The frequency pattern of Populus davidiana, Betula platyphylla, Fraxinus rhynchophylla and Betula dahurica changed significantly. The dominance pattern of Populus davidiana, Tilia spp., Juglans mandshurica, Betula platyphylla, Betula dahurica and Abies nephrolepis changed significantly. The spatial correlation between Quercus mongolica and Betula dahurica, Betula costata and Picea spp., Betula costata and Abies nephrolepis, Picea spp. and Abies nephrolepis declined, however, the spatial correlation between Larix spp. and Betula platyphylla, Acer mono and Ulmus spp. increased.