云南兰科二新种

文山鹤顶兰 新种 图1 Phaius wenshanensis F.Y.Liu sp. nov. Species nova proxima P. mishmensi Reichb. f., sed floribus expansis sepalo intermedio elliptico, labelli lobo medio fere obcordato apice bifido, operculo antherae late ovoideo distincta. Caulis gracilis teres 40—50 cm longus, 0.6—1 cm diam., basi ampliatus, nodis 7—8. praeditus. Folia 6—7, ad apicem caulis alternatim sita, sed basi in pseudocaulem 7—10     

峨眉山桔梗科一新种

蛾眉沙参 新种 图1 Adenophora omeiensis Z. Y. Zhu, sp. nov. A congenris ceteris differt corollae tubo lobisque intus villosis, discis carentibus, filamentis intus pubescentibus. Herba perennis galo-suceida. Caulis 50—65 cm altus, non ramulis, sparse hirsutus. Radice conoidea 5—15 mm diam. Folia basilaria et caulina triangulari-ovata vel ovato-lanceolata 2.5—3.5 cm longa 1.2—1.8 cm lata, apice acuminata vel acuta, basi subtruncata vel attenuata, margine irregulare grosse serrata, supra viridis subtus pallide alba ntrinque sparse strigosa vel brevia hirsuta superjecta lineares; petioli 5—12 longi sursum sensim breves vel decurrentia ad sessilia. Panicula angusta, ramulis abortivis unifloris; braeteae lineares strigosae; pedicelli graeiles, 5—15 mm longi sparse strigosi; calycis tubi obovato-conici extus sparse strigosi, lobis laceolatis vel lineari-lanceolatis 5—8 mm longis, 1—1.8 mm latis,     

海南胡椒属一新种

<正> 嵌果胡椒 新种 图1 Piper infossibaccatum A. Huang sp. nov. Simile P. hancei Maxim., sed foliis longe ovatis,6—10 cm longis, 2—4 cmlatis, bacca globosa, inferne in rhachi infossa cum ea coalita differt. Liana scandens fere 10 m longa, in omnibus partibus glabra. Rami graciles, ad nodes diladati, internodiis 6—10 cm longis. Folia chartacea, longe ovata, 5—10 cm longa, 2—4 cm lata, apice acuta vel acuto-acuminata, basi     

青海棘豆属新分类群

1 贵南棘豆 新种 图1 Oxytropis guinanensis Y. H.Wu,sp. nov. Species nova affinis O. stracheyanae Bunge, sed foliolis 4～7-jugis,5～16mm longis,bracteis 5～7mm longis, calycibus 12～14mm longis,vexillis c. 24mm longis, 12mmlatis, limbo ovato, supra medium constricto, apice truncato, alis c. 20 mm longis differt. Perennis, c. 11 cm alta, basi stipulis et petiolis dense persistibus. Radix palar is glan-dacea. Caulis nullus. Folia 3～10 cm longa; petioli 2～5 cm longi, cum rhachidibus supra sul-     

西双版纳豆蔻属一新种

勐腊砂仁 新种 图1 Amomum menglaense S. Q. Tong, sp. nov. Species foliis sessiliis, utrinque glabris, bracteis ovatis A. subulato Roxb. similis, sed bracteis calycibus et corollae lobis dorsalibus in rostrum subulatum haud abrupte contractis, labello integro differt. Herba erecta, 1—1.5 m lata, basi vaginis elaminatis rubris praedita. Folia sessilia, lamina elliptica vel oblongo-lanceolata, 35—40 cm longa, 7.5—9.5 cm lata, apice acuminata, basi cuneata vel anguste cuneata, supra viridis, subtus viridula utrinque glabra; ligula emarginata, c. 5 mm longa, membranacea, glabra; vagina viridula conspicue longistrorsum striata, glabra. Spica subcapitata, c. 5 cm longa, 3.5 cm lata, 1—2 e rhizomzte oriens; pedunculus 3—12 cm longus, squamis glabris dilute rubris; bracteae ovatae vel anguste ovatae, 2—3 cm longae, 1.2—1.5 cm latae, brunneae vel viridibrunneae, glabrae; bracteola tubulosa, c. 3.5 cm longa, membranacea dilute rubra, glabra, apice putrida (sub anthesi); calyx tubulosus c. 3 cm longus, apice     

贵州四照花属二新种

<正> 册亨四照花 新种 图1 Dendrobenthamia qianxinanica S. S. Chang et Ⅹ. Chen, sp. nov. Specis D. capitatae (Wall.) Hutch. affinis, sed foliis chartaceis, subtus appresse pubescentibus, apice acutis caudatis, nervis lateralibus 3(—4)-jugis, involucri bracteis 4 obovato-rotundatis, 4 cm. longis, 3 cm. latis, apice apiculatis, basi cuneatis; peduncalo 3.5—4 cm. longo glabro differt. Frutex 5 m. altus, cortice nigrescenti-cinereo, ramulis oppostis, teretibus,     

西藏水东哥属一新种

<正> 糙毛水东哥 新种 图 Saurauia hirsuta C. F. Liang, sp. nov. Species S. cereae Griff. similis sed foliis utrinque pilosis floribus pedicellatis. Arbor parva. 3—5 m alta patens. Ramuli cinereo-albi hornotini squamis hirtiformis subulatis annotini glabri. Folia molliter coriacea obovata 15—25 cm longa et 9—15 cm lata, apice abrupte acuta, basi obtusa, margine integra dense setosa, nervis lateralibus utrinsecus circ. 18, supra sparse setulosis in     

中国毛兰属两新种

滇南毛兰 新种 图1:1—2 Eria yunnanensis S.C.Chen et Tsi,sp.nov. Species nova E.sutepensi Rolfe subsimilis,racemo paucifloro,floribusmajoribus 1—1.5cm in diam.,bracteis 1—1.5cm longis,labello tricarinato,lobo medio carnoso diversae.     

西藏泥炭藓属一新种

多纹泥炭藓 新种 图1 Sphagnum multifibrosum Li et Zang,sp.nov. Planta rubusta.Epidermis caulina stratis plerumque 2—3,fibrosa.Folia caulina elongato-lingulata,3.8—4.3mm longa,1.2—1.5 mm lata,multi-fibrosa et multiporosa.Folia ramulina rotundato-vel clongato-ovata,2 mmlonga,1.8—2 mm lata,interiore folii prope margines laterales paucipori magnirotundi;dorso folii pori in cellularum angulis bini ternive.Cellulae chlorophyl-liferae sectione transversali anguste trangulae,dorso foliorum inclusae.Odoraromaticus.     

中国姜科一新种及一新变种

垂序姜花 新种 图1 Hedychium nutantiflorum H.Dong et G.J.Xu,sp.nov. Species habitu H.hookeri Baker similis,sed inflorescentiis nutantibus,bracteis haudimbricatis,labellis bipartitis fere usque ad basin differt. Herba humilis,47～100 cm alta.Caulis basi strumosus subglobosus.Laminae elliptico-lanceolatae vel angusto-lanceolatae,15～27 cm longae,3～4 cm latae,apice acuminatae,basi angustatae vel breve angustatae,utrinque glabrae;petioli c.0.5 cm longi;ligulae ob-tusae,0.2～0.4 cm longae,glabrae,purpureae.Spicae breves,4.6～5 cm longae,un-tantes glabrae;bracteae membranaceae,basi connatae,0.7～1 cm longae,uniflorae;     

马鞍菌属新种和新记录(一)

有关马鞍菌属 Helvella 的历史,属种概念以及中国已知种的检索表已作过报道(刘波等,1985)。本文描述了近年来采到的两个新种:粘马鞍菌 Helvella glutinosa sp.nov.和伞形马鞍菌 H.galeriformis sp.nov.;四个新记录:白柄马鞍菌 H.albellu Quél.,小马鞍菌H.helvellula(Dur.et Mont.)Dissing,乳白马鞍菌 H.lactea Boud.和脉马鞍菌 H.phlebo-phora Pat.et Doass.。此外,斑点马鞍菌 H.maculata Weber 虽已作过报道和描述(李静丽等,1986),然而由于它是一个非常具特征性的种,而且有一限制的地理分布,因此本文也对它进行了更充分的描述和讨论。     

云南剌皮属的研究

本文报道云南剌皮属Heterochaete Pat.10种,其中1个新种,3个国内新纪录种。新种是思茅剌皮H.simaoensis Hu et J.Z.Lisp.nov。本文所研究的标本藏于湖南师范大学真菌标本室(MHHNU)和中国科学院微生物研究所真菌标本室(HMAS)。     

滇藏蝠蛾属三新种记述（鳞翅目：蝙蝠蛾科）

本文记述了分布于云南、西藏高寒草甸区的蝠蛾属3新种:云南蝠蛾Hepialus yunnanensis sp.nov.、芒康蝠蛾Hepialus markamensis sp.nov.和草地蝠蛾Hepialus pratensis sp.nov.     

关于 Archineottia与Holopogon 两属合并的问题

本文根据蕊柱结构将Archineottia 归并于Holopogon,并发表了5个新组合：无喙兰Holopogon gaudissartii (Hand.-Mzt.) S. C. Chen、 印度无喙兰H. microglottis (Duthie) S. C. Chen、锡金无喙兰H. pantlingii (W. W. Smith) S. C. Chen、叉唇无喙兰 H. smithianus (Schltr.) S. C. Chen、 日本无喙兰H. japonicus (M. Furuse) S. C. Chen。     

New Taxa of Heracleum L. (Umbelliferae) from China

Three new species of the genus Heracleum L. (Umbelliferae) are described from Sichuan Province, China. They are H. wenchuanense; H.wolongense and H. xiaojinense.     

啮齿动物螺杆菌多重PCR检测方法的建立

目的建立一种可同时检测肝、胆汁、啮齿类三种螺杆菌的多重PCR方法。方法根据已公布的肝、胆汁、啮齿类三种螺杆菌16SrRNA基因序列设计三对特异性引物进行多重PCR并对反应条件进行优化。结果三对引物能分别扩增出特异性的417 bp、364 bp、324 bp目的条带。最佳退火温度为52℃,镁离子浓度为2.0mmol/L,dNTP浓度为200μmol/L,引物浓度为0.625μmol/L。在此条件下多重PCR同时检测的肝、胆汁、啮齿类三种螺杆菌敏感度均为10 fg。结论本实验建立的多重PCR是一种敏感、特异、高效的方法,为同时检测啮齿动物中肝、胆汁、啮齿类三种螺杆菌奠定了良好的基础。     

萱草属有毒植物的研究

萱草属中某些种的根含神经性毒物,家畜采食或饲喂实验动物能引起中毒病的发生。在鉴于此对北萱草,黄花菜,北黄花菜,小黄花菜进行了植物调查鉴定及有毒成分—萱草根素的提取分离与毒性和结构再鉴定的研究,确认除黄花菜根外其它３种均含有萱草根素。讨论了黄花菜种鉴定中存在的问题。     

马鞍菌属新种和新组合

本文报道了产于我国的马鞍菌属Helvella的三个新种及一新组合,它们是亚梭孢马鞍菌H.subfusispora Liu et Cao,太原马鞍菌H·taiyuanensis Liu,Du et Cao中国马鞍菌H.sinensis Liu et Cao以及紫棱柄马鞍菌H.purpurea(Zang)Liu et Cao。并附有我国马鞍菌种的检索表。     

中国山龙眼属植物二新种

山龙眼属植物在我国南部的常绿林中为较常见的树种。作者在编写《ＦｌｏｒａｏｆＣｈｉｎａ》的山龙眼科植物时,发现华南地区的山龙眼属植物中有２个新种;它们是生长于广东阳春县西南部的阳春山龙眼和生长于广西十万大山的东兴山龙眼;现予报道．     

The penetration of local anesthetics into the red blood cell membrane as studied by fluorescence quenching.

The local anesthetics procaine and tetracaine were found to quench the fluorescence of the probes N-octadecyl naphthyl-2-amine 6-sulfonic acid and 12-(9-anthroyl)stearic acid in the presence of erythrocyte membranes. This quenching was shown to be due to the aromatic amine of the procaine and tetracaine molecules. Lidocaine, an active anesthetic that does not contain an aromatic amine in the same position as does procaine and tetracaine did not quench either of the fluorophores. The preferential quenching of the fluorescent probes by procaine and tetracaine indicated a greater accessibility of tetracaine than of procaine to the hydrocarbon region of the membrane and a greater accessibility of procaine than of tetracaine at the membrane's surface. The addition of calcium was found to reverse the quenching of 12-(9-anthroyl)stearic acid by tetracaine in the presence of red cell membranes.