三种榉属植物染色体数目及核型分析

报道了我国3种榉属(Zelkova)植物核型。结果如下:大叶榉(Z.schneideriana Hand.-Mazz.)2n=2x=28=14m 14sm;光叶榉(Z.serrata(Thunb.)Makino)的核型公式为2n=2x=28=26m 2sm,1、2、3对染色体的短臂上有次缢痕存在;大果榉(Z.sinica Schneid)的核型公式为2n=2x=28=20m 8sm。     

豆科黄结属模式及其相关种名的考证

长期以来,Ｔermopsis lanceolata R.Br.被误认为是黄华属的模式。根据有关文献考证和国际植物命名法规,作者为认Ｔ.;lanceoltata是一个不合法名,黄华属的合法模式应为Ｔhermopsis Lupinoides(L.)Link.分布于东北亚,花具互生花的黄华长期被误定为Ｔ。lupinoides(L.)Link,应更正为Ｔhermopsis fabacea(Pall)DC.。     

壳斗科植物摘录(Ⅴ)

壳斗科 FAGACEAE 锥属 Castanopsis Spach 苦槠钩锥 Castanopsis kuchugouzhui Huang et Y. T. Chang, hybr. nov. [Castanopsis sclerophylla (Lindl.) Schott. ×C. tibetana Hance] Castanopsis tibetana × sclerophylla Huang et Y. T. Chang in Guihaia 10(1) :7. 1990.     

中国齿裂菌属研究III.

报道齿裂菌属的2个新种生于青冈Cyclobalanopsisglauca(Thunb.)Oerst.及绵石栎Lithocarpushenryi(Seem.)Rehd.etWils.上的黄山齿裂菌CoccomyceshuangshanensisY.R.Lin&Z.Z.Lisp.nov.和生于青冈上的大齿裂菌C.magnusY.R.Lin&Z.Z.Lisp.nov.;2个中国新记录种小齿裂菌C.leptideus(Fr.Fr.)Erikss.和显缘齿裂菌C.limitatus(Berk.&Curt.)Sacc.。对新种作了拉丁文及汉文描述和图解。模式标本存于安徽农业大学森林保护教研室(AAUFP）。     

中国齿裂菌属研究Ⅲ

报道齿裂菌属的2个新种:生于青冈Cyclobalanopsis glauca(Thunb.)Oerst.及绵石栎Lithocarpus henryi(Seem.) Rehd.et Wils.上的黄山齿裂菌Coccomyces huangshanensis Y.R.Lin & Z.Z.Lisp.nov.和生于青冈上的大齿裂菌C.magnus Y.R.Lin & Z.Z.Lisp.nov.;2个中国新记录种:小齿裂菌C.leptideus(Fr.:Fr.)Erikss.和显缘齿裂菌C.limitatus(Berk.&Curt.)Sacc..对新种作了拉丁文及汉文描述和图解.模式标本存于安徽农业大学森林保护教研室(AAUFP).     

中国齿裂菌属研究III.

报道齿裂菌属的2个新种：生于青冈Cyclobalanopsis glauca (Thunb.) Oerst.及绵石栎 Lithocarpushenryi (Seem.)Rehd. etWils.上的黄山齿裂菌Coccomyces huangshanensis Y.R. Lin & Z. Z. Li sp. nov.和生于青冈上的大齿裂菌 C. magnus Y. R. Lin & Z. Z. Li sp. nov.;2个中国新记录种：小齿裂菌 C. leptideus (Fr. : Fr.) Erikss. 和显缘齿裂菌 C. limitatus (Berk. & Curt.) Sacc.。对新种作了拉丁文及汉文描述和图解。模式标本存于安徽农业大学森林保护教研室 (AAUFP）。     

壳斗科植物摘录(Ⅴ)

<正> 壳斗科 FAGACEAE 锥属 Castanopsis Spach 苦槠钩锥 Castanopsis kuchugouzhui Huang et Y. T. Chang, hybr. nov. [Castanopsis sclerophylla (Lindl.) Schott. ×C. tibetana Hance] Castanopsis tibetana × sclerophylla Huang et Y. T. Chang in Guihaia 10(1) :7. 1990.     

大蒜芥属一新变种

发表了大蒜芥属一新变种,无毛全叶大蒜芥(Sisymbrium luteum (Maxim.)O. E. Schulz var. glabrum F. Z. Li et Z. Y. Sun.)。     

辛夷与木兰名实新考

辛夷与木兰是中国传统的中药材 ,也是传统的树种名称 ,栽培历史悠久。通过对辛夷与木兰进行认真细致地考证 ,首次提出 :1辛夷 L assonia quinquepeta Buc'hoz是望春玉兰 Yulania biondii(Pam p.) D.L.Fu,不是紫玉兰 Y.liliiflora(Desr.) D.L.Fu;2辛夷药材泛指玉兰属 Yulania Spach树种的干燥花蕾 ,玉兰属植物可统称为辛夷植物 ;3木兰是木莲 Manglietia fordiana Oliv.或黄心夜合 Michelia martinii(H.Lév.) Finet & Gagnep.ex H.Lév.等 ,不为玉兰属树种。纠正了现代有关工具书、植物学专著、药学专著及高等院校教材等广为认同的“辛夷即木兰、木兰即紫玉兰”的错误观点。     

秦艽的生物学研究

秦艽(Gentiana macrophylla Pall.)属龙胆科(Gentianaceae)龙胆属(Gentiana L.)秦艽组(Sect.Cruciata Gaudin)植物,是我国大宗中药材秦艽的源植物之一。近年来对秦艽药用成分的分离鉴定和药理学等进行了较深入地研究。重点通过对秦艽的种质资源与分布、形态解剖、生殖生物学及栽培学等生物学方面的研究进行综述,为深入研究秦艽的生物学特性及其发展秦艽生产提供参考。     

棘豆属分类学新资料

作者同意赵一之先生关于海拉尔棘豆Ｏ。ｈａｉｌａｒｅｎｓｉｓ Ｋｉｔａｇ。这是尖叶棘豆Ｏ。ｏｘｐｈｙｌｌａ ＤＣ的观点,但提出其变种光果尖叶棘豆的变种名应是Ｏ。ｏｘｙｐｈｙｌｌａ ＤＣ。ｖａｒ。ｐｓｉｌｏｃａｒｐａ Ｇ．Ｚ．Ｑｉａｎ。     

Leaf architecture and epidermal characters in Zelkova, Ulmaceae

Zelkova , with six extant species in Eurasia - three in East Asia (Z. schneideriana, Z. serrata, Z. sinica) , one in south-western Asia (Z. carpinifolia) and two in southern Europe (Z. abelicea, Z. sicula) - was investigated with respect to leaf architecture and epidermal characters by LM and SEM. The leaf venation of Zelkova is relatively uniform, while leaf size and shape are highly variable. Characters such as teeth and epidermal cells, trichomes and stomata provide useful specific distinctions. Beginning in the Miocene, increasing aridity in Central Asia would appear to have been responsible for isolating the eastern Asiatic species from their European/western Asiatic counterparts. The European range underwent further changes in response to Quaternary climatic oscillations.     

野生多叶棘豆中芦丁的动态积累规律

目的：为确定野生多叶棘豆的最佳采收期提供实验依据.方法：采用高效液相色谱法对不同采收期野生多叶棘豆中芦丁含量进行测定,考察其指标成分芦丁的含量变化趋势.结果：多叶棘豆中芦丁的动态积累有一定规律.在7月末8月初以前其芦丁含量有上升趋势,8月初以后其芦丁含量逐渐下降.结论：为保证药材的质量,根据多叶棘豆中有效成分的动态积累规律,有必要在其最佳采收期采集药材.     

世界樟科植物系统学研究进展

就上世纪90年代以来世界樟科植物系统学研究进展,从形态学、孢粉学、胚胎学、叶角质层研究、分子系统学以及生物地理学等6方面进行了综述性的回顾和展望。     

中甸鸢尾的分类位置及其一新变型

中甸鸢尾 (IrissubdichotomaY .T .Zhao)最初被置于野鸢尾亚属 (Subgen Pardanthopsis(Hance)Baker)中 ,这是基于中甸鸢尾 (IrissubdichotomaY .T .Zhao)的植株形态与该亚属的野鸢尾 (I dichotomaPall.)相似。此后 ,由于在外花被上发现了鸡冠状附属物 ,1999年董晓东等将其移至鸡冠状附属物亚属 (Subgen CrossirisSpach)中。但是我们根据中甸鸢尾的植株基部具有毛发状老叶残留纤维 ,根状茎极短 ,花茎自叶丛旁侧抽出 ,开花习性 ,以及花粉外壁纹饰等特征与尼泊尔鸢尾亚属 (Subgen Nepalensis (Dykes)Lawr.)极其相近 ,认为将其置于尼泊尔鸢尾亚属中更为妥当。此外 ,还发现了一个中甸鸢尾的白花变型。     

3种荒漠盐生植物根系及根毛形态特征的比较研究

在水培条件下,针对梭梭、囊果碱蓬和钠猪毛菜3种荒漠盐生植物,研究它们苗期在不同盐浓度条件下根系和根毛形态的差异。结果表明：一定浓度的盐分可以促进3种盐生植物生长,但较高浓度的盐抑制其生长,特别是对根系生长的抑制作用更大。在同样盐浓度下,钠猪毛菜的生长最快,生物量也最大。在盐分浓度较低时,3种盐生植物的主根长和总根长都有所增加,与对照相比,囊果碱蓬增加的幅度较大,但高浓度的盐会抑制根系总长度的增加,其中囊果碱蓬较梭梭和钠猪毛菜抑制的程度轻。盐分对3种植物的根系平均直径没有显著的影响,但有减小的趋势。在水培条件下,梭梭和囊果碱蓬的根系上、中、下部分布的较均匀,而钠猪毛菜的根系中部比上部和下部有显著的增加,盐分对每种植物的根系的分布没有显著的影响。3种植物的根毛与根系生长环境中的盐浓度没有明显相关性;3种植物之间,根毛的长度和密度有显著差异。从根系和根毛的形态特征可以推断：囊果碱蓬比梭梭和钠猪毛菜具有较强的抗旱性和耐极薄能力;梭梭的耐盐能力较其它2种植物差,囊果碱蓬的耐盐性最强。     

Susceptibility of 32 elm species and hybrids (Ulmus spp.) to the elm leaf beetle (Coleoptera: Chrysomelidae) under field conditions in Arizona

We evaluated elm leaf beetle, Pyrhalta luteola (Müller) (Coleoptera: Chrysomelidae), defoliation of 32 elm species or hybrids (taxa) established under field conditions in Holbrook, AZ. Percentage of defoliation, number of eggs, and number of larvae were estimated on randomly selected 15-cm shoot lengths annually in July, from 1996 to 2001. The following nine taxa consistently sustained 15-46% mean overall defoliation: 1) Siberian elm, U. pumila L.; 2) 'Dropmore' elm, U. pumila; 3) 'Camperdownii' elm, U. glabra Huds.; 4) 'Regal' elm, U. glabra x U. carpinifolia Gledisch x U. pumila); 5) 'Sapporo Autumn Gold' elm (U. pumila x U. japonica Sang.); 6) 'New Horizon' elm (U. pumila x U. japonica); 7) 'Charisma' elm [(U. japonica x U. wilsoniana Schneid.) x (U. japonica x U. pumila)]; 8) 'W2115-1' elm (U. parvifolia Jacq. x U. procera Salisb.); and 9) 'Homestead' elm [(U. hollandica Mill. x U. carpinifolia) x (U. pumila-racemosa Dieck x U. carpinifolia)]. Percentage of defoliation was significantly low on four Chinese elm (U. parvifolia) cultivars ('Allee', 'Athena', 'Glory'/lace bark, and 'Kings Choice'). Percentage of defoliation was also low on seven Asian elms (including U. chemnoui Cheng, U. bergmaniana Sneid., U. szechuanica Fang, and species of the U. davidiana Planch. complex [U. davidiana, U. japonica, U. wilsoniana, and U. propinqua Koidz.]) and the American elm (U. americana L.) 'Valley Forge'. Percentage of defoliation and the number of eggs or larvae per plant were highly correlated. The results of this study are generally consistent with results of past laboratory screening trials.     

The rhythm of the seasonal development and morphological polyvariation of Batrachium circinatum (Sibth.) Spach at the Rybinsk Reservoir

The rhythm of the seasonal development of Batrachium circinatum (Sibth.) Spach in the waterbodies of Yaroslavl oblast has been studied. The morphological characteristic of the stiff water crowfoot is presented and the specificity of its life forms is shown.     

Significato fitogeografico e fitosociologico delle cenosi a Sarcopoterium spinosum (L.) Spach di Capo S. Elia (Cagliari - Sardegna meridionale)

Abstract

Phytogeographic and phytosociological meaning of the Sarcopoterium spinosum (L.) Spach community at S. Elia Cape (Cagliari).—Sarcopoterium spinosum (L.) Spach station at S. Elia Cape, the most western station of its distributive area, sets the question whether the accompanying vegetation must be attributed to eastern or western associations. An analysis of the species shows some residual members of the Poterium spinosum and Corydothymus capitatus Lavrentiades 1969 association, but not sufficient to recognize this coenosis, which is anyhow included in the Oleo-Ceratonion. The boundary of these coenosis with the eastern area is attributed to a N-W/S-E climate gradient, set possibly in post glacial ages.     

Isolation and partial characterization of IgG-like immunoglobulins from frog (Rana ridibunda Pall.) and tortoise (Testudo graeca Pall.) serum

1. By successive application of gel-filtration and ion-exchange chromatography IgG fraction have been isolated from frog (Rana ridibunda Pall.) and tortoise (Testudo graeca Pall.) sera. 2. The homogeneity of the fractions has been confirmed and a similar electrophoretic mobility has been revealed by polyacrylamide gel electrophoresis and immunoelectrophoresis. 3. In rabbits polyclonal antibodies giving specific reaction with the corresponding IgG immunoglobulin have been raised.